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Trygg-Hansa-huset

Brutalist stronghold
Architecture, Cultural Heritage
Offices, Renovation & Transformation
Years of Construction: 1972–1977
Architects: Anders Tengbom och Stefan Salamon
Landscape architect: Holger Blom

Brutalist, large-scale and uncompromising. Between 1972 and 1977, Trygg-Hansa-huset took shape on Fleminggatan. Anders Tengbom and Stefan Salamon designed one of Sweden’s foremost Brutalist buildings – a structure that has shaped both the cityscape and architectural debate.

Trygg-hansa-huset
The ETG Group: from left, Anders Tengbom, Léonie Geisendorf and Ralph Erskine.

Stockholm was in the midst of an urban transformation when Trygg-Hansa-huset emerged. The redevelopment of Norrmalm had redrawn the city’s skyline, and the office landscape was undergoing fundamental change. Anders Tengbom, son of the renowned architect Ivar Tengbom (founder of Tengbom), had already designed iconic buildings such as Svenska Dagbladet’s headquarters and Hötorgsskrapa no. 2. With Trygg-Hansa, he gained another opportunity to explore contemporary ideals – this time through an office complex that challenged established conventions.

A new view of the office with Trygg-Hansa-huset

Trygg-Hansa-huset broke with the traditional office format and became a forerunner in workplace design. Here, Tengbom developed an early version of what would later be known as the “combi office” – a hybrid between cellular offices and open-plan environments. Instead of relying solely on either small individual rooms or expansive open floors, he created flexible layouts where employees could move between private workspaces and shared social zones.

It is no coincidence that the Trygg-Hansa building is today given a blue classification by the Stockholm City Museum

Brutal and poetic at once

The building’s expression is as strict as it is poetic. The long, eight-storey brick volume stretches along Fleminggatan, giving the building a massive yet finely articulated presence in the cityscape. In contrast to the compact brick façade, a glass building in the northeast, shaped as three hexagons, and a low pavilion in the southeast complete the composition.

Between the three volumes lies a park – a green lung at the heart of the office complex. Behind its design was none other than the legendary city gardener Holger Blom.

Trygg-Hansa-huset

That the building’s forms and functions were considered down to the smallest detail is evident in its artistic decoration. Sculptures, reliefs and details were integrated into both the interior and exterior. Much of the artwork remains in its original condition and continues to be part of the building’s identity.

Protected yet questioned

Trygg-Hansa-huset has the highest cultural-historical classification granted by the Stockholm City Museum, the blue classification. The building’s architectural and societal value is considered comparable to listed buildings under the Cultural Environment Act.

But as is often the case when a city changes, Trygg-Hansa-huset has been part of discussions about redevelopment and densification. Proposals to transform the block have sparked valuable debates on how Brutalist architecture can be preserved and adapted for the future.

Brutalism today

Brutalism is an architectural style that often provokes strong feelings, and it was never meant to be restrained. It is uncompromising, honest and monumental. Trygg-Hansa-huset is one of Stockholm’s most prominent examples of this movement and demonstrates how architecture can be both rational and grand at the same time.

Today, the building remains a reminder of a period when Swedish architects dared to think in new ways – when the honesty of materials and the function of spaces guided the design. And perhaps that is why it continues to fascinate – a brick-clad time capsule in a constantly changing city.

Trygg-Hansa-huset

Contact person

Josefin Larsson

+46 72 183 02 34

Sandböljan in Malmö

Historic harbor heritage in motion
Architecture, Cultural Heritage
Offices, Renovation & Transformation
Client: Sandböljan AB
Project years: 2020–2024
Location: Malmö
GFA: 1 500 sqm
Collaborators: Sandböljan AB, Agneta Hahne Arkitektkontor
Awards and recognitions: Malmö stadsbyggnadspris 2025

In the shadow of Malmö’s Frihamnsviadukten, at the crossroads of rail tracks, roads, and industrial buildings, lies Sandböljan. This architectural project carefully transformed a former container yard and warehouse into a vibrant hub for creative businesses.

Photographer: Tengbom

At the edge of the city and the harbor, a new district is emerging. Sandböljan shows how a strong idea, deep commitment, and skilled craftsmanship can breathe life into a previously overlooked place. The triangular industrial site has roots going back to the 1920s, when the building was erected to handle Malmö’s import of precious wood from ports around the world. Today, it houses a photo studio, meeting rooms, a showroom, offices, and workshops. Generous windows and open spaces invite the public into an environment of creativity and craft.

An unusual commission

Photographer: Tengbom

Unlike many of our other projects, a private property owner with a very personal commitment commissioned Sandböljan. Furniture maker and developer Christofer Eliasson wanted to create something long-term, sustainable, and contemporary on a site that people had overlooked for decades. After thirty years in Malmö’s harbor, he describes the place as “never forgotten” and explains that he and his team have treated every intervention with great respect for its history.

“I’ve only created the conditions for new life. The tenants are the ones who will leave their mark – the vision isn’t finished,” says Christofer Eliasson.

In close dialogue with the client, Tengbom has shaped a sustainable vision for the large warehouse, providing both planning and construction documents.

“This project shows how far you can go with small resources – as long as you have a clear idea and respect for what already exists,” says Anders Nilsson, lead planning architect at Tengbom.

Dig where you stand

With history at your back

The building, originally a generous warehouse, was given a new load-bearing structure in the 1970s. New entrances and large brick interior walls now offer flexible spaces for creative work. Old and new elements come together in an architecture that plays with light, views, and volume. The graffiti on the entrance façade appeared overnight, before the large openings were made, and has never been removed – it remains part of the building’s expression.

“It’s an honest architecture. Everything has been crafted with care. With precise cuts and attention to detail, the building has gained new life – with daylight, views, spatial richness, and thoughtful material use,” says Jonas Marculescu, lead architect at Tengbom.

Love for patina

Sandböljan marks the beginning of a new district in Malmö. What was once a paved industrial yard has become a social entrance space with replanted greenery and newly planted willow trees. Here, people gather for lunches, events, or simply to spend time together. The on-site carpentry workshop has made it possible to work with local, sustainable solutions and tailor-made details adapted to the place.

Photographer: Tengbom

“I hope more property owners dare to dig where they stand, without rushing to demolish and modernize. Use what already exists – it’s better for the planet, and who doesn’t love patina?” says Christofer Eliasson.

Christofer emphasizes that the project is not complete. Instead, he describes it as the beginning of a process where new businesses will gradually leave their mark. In this way, the place can evolve at its own pace.

Photographer: Tengbom

Contact person

Attic apartments in Kvarteret Generalen

Designed by Ivar Tengbom
Architecture, Cultural Heritage
Accessibility, Building Preservation & Restoration, Housing, Renovation & Transformation
Client: Bostadsbolaget
Location: Göteborg
Year: 2019-ongoing

As Gothenburg continues to grow, so does the demand for housing. There are many ways to address this, but one sustainable solution is to convert existing buildings. In Kvarteret Generalen, unused attic spaces are being transformed into 24 new apartments — preserving history while creating much-needed homes.

In 2019, the municipal housing company Bostadsbolaget received a tip from its staff about unused attic spaces in one of its properties in Haga. A feasibility study soon confirmed that the high ceilings — reaching up to six or seven metres — could accommodate 24 new apartments, while still leaving room for new attic storage areas.

Since then, twelve loft apartments have been completed on Södra Allégatan, and another twelve are on the way.

Original drawing by Ivar Tengbom.

“The attic space our staff noticed in Haga had impressive ceiling heights. The study showed that we could create 24 apartments while still providing new storage areas in the attic”, says Per Orshammar, Project Manager, Bostadsbolaget

Each apartment is unique in layout and size, ranging from 31 to 35 square metres. All feature an open-plan kitchen and living space. The next phase of the project will begin in 2024, with the final twelve apartments set to be available for rent by 2025–2026.

We’ve had to be creative while showing great respect for the building’s cultural and historical values.

Kvarteret Generalen – a historic landmark

Haga is one of Gothenburg’s oldest districts, known for its cobblestone streets, small squares, and historic buildings. It’s a highly desirable area, but new construction is nearly impossible. Instead, the focus is on adapting existing buildings, as seen in Kvarteret Generalen.

Originally built in 1866 as a children’s hospital, the property was designed by architect Frans Jacob Heilborn. In 1910, four additional stone buildings—ranging from four to six storeys—were added, designed by Ivar Tengbom and Ernst Torulf. Today, Haga’s charm attracts both residents and visitors, blending a vibrant café culture with historic character.

Attic conversions in two phases

The first twelve apartments are now complete, marking the first phase of the project. With the second phase underway, another twelve apartments and additional storage spaces are being created.

“What makes this project particularly exciting is the challenge of preserving and enhancing the original architecture while creating modern homes,” says Helena Elisson, architect at Tengbom.

“We approached the project with a solution-driven mindset—balancing creativity with deep respect for the building’s cultural heritage.”

By preserving Ivar Tengbom’s original architectural vision, we have created new living spaces without compromising the historic integrity. Achieving this required careful material selection and thoughtful design. The project began with a feasibility study and a building permit process to ensure a seamless transformation.

Smart and sustainable solutions

By reusing existing structures, the project reduces environmental impact while creating valuable new homes for Gothenburg residents. Helena emphasises that collaboration with Bostadsbolaget was key to solving challenges within the complex structure of the building, especially in areas like ventilation and chimney placement.

“Together, we explored a variety of solutions. In some apartments, we designed skylights, in others dormer windows,” explains Helena.

“One innovative approach was to install a raised floor, making it easier to route plumbing and ventilation systems. The white interiors and light-stained wooden floors further enhance natural daylight and create a modern feel.”

Transforming the future of housing

The Kvarteret Generalen project demonstrates how historical buildings can be preserved and adapted while contributing to the housing market. By creating 24 new homes within an existing structure, the project showcases a sustainable and innovative response to housing shortages.

“While 24 apartments won’t solve Gothenburg’s housing crisis, it’s a great example of how we can rethink and repurpose existing spaces,” says Helena. “It required technical expertise, creativity, and a deep respect for the building’s historic significance.”

Contact person

Kajsa Crona

+46 727 07 79 73

Campus Tensta

A historic revival
Tensta 2
Architecture, Cultural Heritage
Building Preservation & Restoration, Renovation & Transformation
Client:
Location: Tensta, Stockholm
Collaborators: Byggprojekt, Seveko, Reichmann antikvarier, Projektel
BTA: 15 000 sqm
Awards and nominations: Nominated for Kasper Salin 2025
Photographer: Felix Gerlach

The former upper secondary school in Tensta, a heritage-listed building of the highest cultural value, is set to reopen as Campus Tensta under the management of Hemsö. Blending late modernism and brutalism with influences from Asian architecture, the school has been carefully restored by Tengbom, with a strong commitment to preserving its original identity.

Tensta 1 Tensta 2

Designed by Gösta Uddén, the school was inaugurated in 1984. Some call it “the last truly grand school built in Sweden”, while others argue it should be designated a listed building. Since 2018, it has stood empty, with rumours of demolition causing concern among both architectural experts and the public. However, Hemsö’s vision is the opposite: the school will be carefully restored, ensuring its architectural integrity remains intact.

Letting go of the ego

“As an architect, there’s always a desire to make your mark on a project. But when working with heritage buildings, you have to set aside your own vision in favour of preserving the original structure,” says Josefin Larsson, architect and business developer at Tengbom, specialising in restoration, cultural history, and adaptive reuse.

Tensta 7 Tensta 3

A cultural restoration detective story

Tengbom has led the extensive renovation, which aims to bring the school back to its original condition while meeting modern requirements for accessibility, acoustics, and fire safety.

That was then. Photograph: Bo Eriksson

Together with Reichmann Antikvarier, Tengbom has mapped and documented the building’s cultural and historical attributes. As an expert in heritage conservation under Swedish planning law, the antiquarian ensures that all modifications comply with strict preservation regulations.

Patterned concrete and pagoda-inspired roofs

The original complex, designed by Uddén, includes the school, the Tensta Träff community centre, a library, and later a sports and swimming hall. Together, these three buildings form a triangle.

The facades feature high-quality materials such as red brick, patterned cast concrete, laminated wood, and black-painted steel. At the heart of the school, a glass-roofed winter garden floods the interior with natural light. Architectural elements include open-air corridors, diagonally protruding staircases, and dramatically curved roofs inspired by Asian pagodas.

Stockholm’s City Museum has classified the school as a “blue-listed” building—the highest level of heritage protection, meaning it is considered an essential part of Sweden’s cultural heritage.

“For Campus Tensta, this means an absolute prohibition against alterations that could compromise the building’s historic character,” explains Josefin.

Thoughtful additions that blend in

Each space within the school has been assessed for its cultural significance. Architecturally valuable areas are marked as “rooms of special character,” allowing only minimal changes. Other spaces, such as classrooms and restrooms, are being renovated to meet modern standards while preserving the original design.

Tensta 10Campus Tensta’s classrooms are being upgraded with new acoustics, lighting, and accessibility features. Suspended ceilings are being replaced, and all restrooms will receive new tiles, sinks, and toilets. However, in areas such as corridors and the winter garden, everything is being restored to its original state.

“The principle behind the renovation is gentle transformation—we work with the building’s original logic,” says Josefin. “Any additions should blend in rather than stand out, and we prioritise reusing materials whenever possible. New technical systems will be discreetly integrated, and interventions will be minimal yet highly functional.”

Tensta 11 Tensta 8Campus Tensta – reviving the original vision

In 2021, Hemsö acquired both the school and the Tensta Träff community centre. The goal was to create Campus Tensta, a space where education and culture come together.

Tensta 12Their vision is to bring together secondary and adult education, higher education, cultural initiatives, and entrepreneurial ventures under one roof.

“We are truly excited to bring life back to these incredible buildings. Our goal is for Campus Tensta to enrich both the local community and Stockholm as a whole – contributing to education, culture, and creativity,” says Johan Einarsson, project developer at Hemsö.

The first step begins in autumn 2024, when Järva Gymnasium moves in. The newly established foundation-based upper secondary school will mark the start of a new era for Campus Tensta.

Contact person

Josefin Larsson

+46 72 183 02 34

Anna Whitlock’s Upper Secondary School

Honouring history and the future
Architecture, Cultural Heritage
Education, Renovation & Transformation
Client:
Location: Stockholm
Awards and nominations: Stockholm building of the year 2019
BTA: 23 000 sqm
Completed: 2018
Photographers: Åke E:son Lindman, Johan Fowelin

In the former government offices on Kungsholmen, designed by Axel Lindegren in the 1920s, stands Anna Whitlock’s Upper Secondary School. With great care, our architects at MAF (now Tengbom) transformed this historically significant building into an inspiring learning environment for future generations, breathing new life into the neighbourhood.

Welcome in. Photo: Åke E:son Lindman

Originally constructed in 1926, the building was designed as office space for various government agencies, earning it the nickname Ämbetshuset (“The Government Building”). Over the years, it housed institutions such as the National Board of Public Works and the Swedish National Agency for Education, before becoming home to the County Administrative Board in the 1970s, which remained there until 2015.

“We wanted to preserve memories of the building’s past. Leftover door openings became bookshelves or display cases, and forgotten attic spaces were transformed into art studios”, says Amanda LeCorney, architect at Tengbom. “The students have awakened the building from its slumber. It’s more alive and vibrant than ever before.”

Adapting history for modern education

The key challenge in repurposing the building was creating enough classrooms within a structure originally designed for small offices with load-bearing walls.

For a functional learning environment, classrooms need to be around 60 square metres, with proportions that support good acoustics and clear communication. The solution? Removing some of the load-bearing heart walls, but only in the courtyard wings, which were less historically sensitive. This allowed for the larger rooms required for subjects like chemistry and biology, without compromising the building’s heritage.

“It’s amazing to see how the students have made the building their own. Lounging in the seating we designed or working in a window nook,” says Amanda.

More light, more space, more interaction

Originally, the building had dark corridors, with offices lining the façade. By removing the heart walls, the circulation spaces were moved to the courtyard side, bringing in natural light. Unlike newly built schools, which often prioritise teaching spaces over social areas, this adaptation made clever use of existing spaces, turning leftover areas into valuable communal spots.

Moving through the school now, you feel its generosity. Each floor offers study spaces and social areas, creating a more dynamic learning environment.

Photo: Johan Fowelin

A courtyard with identity

The building lacked a large gathering space for its many students, and the existing courtyard was structurally unsound. The solution? A new courtyard design, inspired by the herringbone parquet flooring in the school’s grand rooms.

A soft rubber surface now covers the central space, featuring a Christmas tree stand at its heart. Just like in a traditional living room.

This flexible courtyard serves as a meeting place, a stage for school assemblies, and a celebration space for graduations.

“The pattern has become a symbol of the school on social media. It’s exciting to see how the students have embraced and expanded on our creativity.”

Photo: Johan Fowelin

Dining in rooms, not halls

With no large open space available, the school restaurant was spread across multiple rooms. What started as a necessity became an advantage, creating a quieter, more pleasant dining experience.

Each room has its own lighting and atmosphere, with some playing music, allowing students to find their preferred spot. Furnished for both small and large groups, the restaurant also functions as a study area outside lunchtime.

Dividing the dining area into smaller rooms should be standard in schools. It significantly improves the acoustic environment.

Photo: Johan Fowelin

A debated but forward-thinking design

Since the school has no sports hall, students use nearby sports facilities. However, the basement features yoga rooms, a gym, and gender-neutral changing rooms. Here, students change and shower in individual booths, with lockers positioned outside. An inclusive design that sparked debate when first introduced.

“This was likely one of the first gender-neutral changing rooms. Today, it’s the norm. At the time, it caused controversy in local media.”

Given that changing rooms are a common site for school bullying, these enclosed shower booths were designed to prevent any form of invasive photography, with doors sealed from floor to ceiling.

“Ironically, when the building was first constructed, strict gender separation was the norm—many original floor plans include rooms labelled ‘female assistant.’”

Anna Whitlock’s. Photo: Åke E:son Lindman

Anna Whitlock’s – a celebrated and accessible school

Throughout the renovation, many original features were restored, including the limestone staircase in the main entrance. The building was carefully adapted for accessibility while preserving its historical character.

“We were fortunate to work with bold clients who had a high level of ambition and deep respect for the building’s heritage,” says Amanda.

In 2019, Stockholm named Anna Whitlock’s Upper Secondary School Building of the Year. Today, it plays a vital role in Kungsholmen’s vibrant city life.

Contact person

Oskar Eriksson

+46 702 56 27 39

Frälsningsarmén

A cultural heritage mystery
Architecture, Cultural Heritage
Accessibility, Building Preservation & Restoration, Culture, Renovation & Transformation
Client:
Entrepreneur: Construction company Viktor Hanson
Location: Sankt Göransgatan 61 Stockholm
Assignment years: 2016-2019
LOA: 900 sqm
Collaborators: Tyréns, Acoustic Environment, BK Calculation Consultants, Fire Protection Team, Storköksbyrån, VVS-Kompetens, ÅF, COWI

Frälsningsarmén’s heritage-listed building on Kungsholmen, Stockholm, was in need of both restoration and modernisation. Through a careful balance of reuse and reconstruction, the goal was to preserve its identity while adapting it for today’s needs. But first, one crucial question had to be answered: what lay hidden behind the walls?

A building waiting to be rediscovered

Hantverkaren 18, home to Frälsningsarmén’s 6th Corps, was built in 1911. Over the years, the organisation’s needs had changed, yet the facilities had not kept pace. The kitchen was too small, the lighting inadequate, and the overall wear and tear significant. The work environment needed improvement, and the building required a comprehensive restoration that honoured its past while supporting its future.

With a guiding principle of “preserve and adapt,” the renovation focused on enhancing both function and aesthetics while maintaining the building’s historical character.

A space for many purposes

The updated facility needed to accommodate a variety of functions, including:

  • A flexible assembly hall with a balcony for worship services and large gatherings
  • Meeting rooms, corridors, kitchens, storage, showers, and changing rooms
  • A multifunctional dining room, central to Frälsningsarmén’s mission, where meals are served to those in need
Photo: Sten Jansin

Messages from the past

To uncover the building’s true identity, we had to look back. The investigative phase, known as anamnèsis, the Greek word for “recollection” — guided every decision. The team studied oral histories, archival drawings, historical documents, and photographs, combining historical research with insights from Frälsningsarmén’s staff.

Then, the team conducted a physical investigation — scraping paint layers, uncovering hidden spaces, and evaluating what could be restored, reused, or reconstructed. During the process, they discovered hidden doors, which were carefully repaired and reinstated. Long-buried wood paneling was uncovered and restored, while paint analysis informed a subtle, historically inspired colour scheme. Sealed-off skylights were reopened, allowing natural light to once again fill the dining hall. Additionally, the checkerboard-patterned linoleum flooring was replaced, bringing back the original wooden design.

We reopened the skylights in the dining hall to let light into the premises. Photo: Sten Jansin.

Time, knowledge, and respect

Restoring a 100-year-old building requires more than just technical expertise, it demands patience, precision, and deep respect for history.

By carefully weaving Frälsningsarmén’s legacy into the present, we ensured that its mission, history, and identity remain visible and meaningful for generations to come.

Contact person

Lina Swanberg

+46 8 412 53 36

Klosterhuset – Vreta Kloster

An exhibition in itself
Architecture, Cultural Heritage
Accessibility, Building Preservation & Restoration, Culture, Renovation & Transformation
Client: Svenska kyrkan
Location: Linköping
Assignment years: Was inaugurated 2019
Construction period: Monastery house 13th century, Church stable 19th century, storage 2019
Collaboration for exhibition design: Archaeologist Göran Tagesson
Awards and recognitions: Nominated for Helgopriset 2023

Some buildings are fortunate enough to enjoy long and eventful lives. Over time, they may change functions, adapting to new needs while retaining their essence. When we developed Vreta Kloster, our aim was to create a vibrant and inviting destination — one that would open up Klosterhuset to all.

At the entrance to Berg’s locks outside Linköping lies Sweden’s first monastery, originally founded as a Benedictine convent. Today, only the ruins and Vreta Kloster Church remain. But there is also Klosterhuset — the former grain storehouse of the nuns. The site has long been a popular destination, drawing visitors for both religious and cultural experiences.

“For historic buildings like this, the key to longevity is meaningful use. When they serve a purpose, they stand a greater chance of being cared for and developed over time,” says Magnus Almung, lead architect at Tengbom.

Revealing Klosterhuset

Upon arrival, visitors are first greeted by the impressive church and its ruins — a natural focal point in the landscape. Behind the towering trees, Klosterhuset was once barely visible. There was no clear approach to the building, and when visitors finally found their way there, they were met with closed doors, unable to experience the beautiful vaulted interiors.

“The goal of the renovation was to enrich Vreta Kloster as a visitor destination with engaging exhibitions—sparking curiosity about the site’s architecture, archaeology, and history, all leading up to a well-earned café break,” Magnus explains.

Now, Klosterhuset is more visible. Carefully pruned trees allow glimpses of the building from the gravel square between the church and Klosterhuset. A winding path leads visitors between the trees and along the building’s long side, guiding them through a newly created opening in the old stone wall, directly opposite the church entrance. At the southern gable, a gravel courtyard connects to the historic stone walls.

We preserved history while making it accessible for the future

Photo: Åke E:son Lindman

Restored with care

Klosterhuset, dating back to the 13th century, was already in good condition. Some minor cracks in the masonry were repaired, and the roof — recently re-laid with traditional wooden shingles—was left untouched. To ensure year-round use, we carefully adapted the building, adding glazed doors within the existing openings.

The four wooden doors on the eastern side, remnants of Sigurd Curman’s early 20th-century restoration, were likely part of the original structure. “To improve the indoor climate, we added slim steel-framed glass doors behind the wooden ones,” Magnus explains.

The challenge was balancing functionality with preservation — enhancing comfort without compromising the historic wooden doors or the building’s unique, atmospheric light.

Thoughtful accessibility

Photo: Åke E:son Lindman

With ground levels already nearly flush with the thresholds, accessibility improvements required minimal intervention. To ensure inclusivity, a reversible modification allowed for step-free entry, and the automatic door mechanism was discreetly embedded in the floor. Meanwhile, the southern hall was designed as a flexible space, suitable for concerts, lectures, confirmation classes, exhibitions, and even a café. Additionally, a discreet wire system along the walls enables flexible lighting and display arrangements.

“With materials and patina this rich, our approach had to be careful—installing heating, lighting, and electrical systems in a way that respected the building’s integrity,” says Magnus.

Hidden technology, visible heritage

The large limestone slabs covering the floors had been loosely laid in sand, making it possible to lift them, conceal wiring beneath, and put them back without damage. In the northern hall, now home to the stone museum, the team carefully leveled the original flooring. In the southern hall, where the floor was more uneven, they added a new layer of limestone. The stone museum also received upgrades, including improved display cases, signage, and lighting.

“We wanted Klosterhuset to be open to visitors during the day,” Magnus adds. “But even when it’s closed, its beauty remains on display. Subtle lighting highlights the interiors, making them visible through the glass doors.”

A glimpse inside

We added an interior glass bay window to the stone museum, allowing visitors to peek inside even when the building is locked. The nearby red-painted stable now serves as a visitor facility with toilets, a preparation kitchen, and staff spaces. A simple serving hatch offers coffee straight into the monastery garden.

Photo: Åke E:son Lindman

The project also introduced a new storage facility for churchyard management near the southern visitor car park. Designed as a traditional agricultural building, it complements the surrounding 19th-century structures. A timber frame supports the structure, while horizontal laminated wood panels create the exterior. Carefully crafted details enhance the façade, corners, and eaves. Painted in Falu red, the building seamlessly blends into its historic setting.

As a result, Klosterhuset reopened to the public in spring 2019 — ready to continue its long and remarkable story.

 

Contact person

Magnus Almung

+46 31 708 38 01

Stjärnorp Castle Ruins

Where architecture meets restoration
Architecture, Cultural Heritage
Building Preservation & Restoration, Culture, Heritage Expertise, Renovation & Transformation
Client: Private
Years of construction: 2014–2022
General contractor: Miljöbyggarna Entreprenad i Linköping
Developer: Slottstornet AB
Building antiquarian and conservator: Tyréns Sverige AB
Photographer: Felix Gerlach

Stjärnorp Castle Ruins is not only an important cultural heritage site but also a beautiful example of how contemporary architecture can enhance and highlight historical buildings. Led by Erik Wikerstål from Tengbom as the chief architect, the project has been praised for its sensitive balance between preservation and renewal.

Since 1789, Stjärnorp Castle Ruins, located just north of Linköping, stood unprotected following a devastating fire. Through extensive restoration and modernization, it has been safeguarded against further decay and prepared for future generations. Today, the ruins play a significant role in the cultural and tourism landscape of Östergötland.

Award-winning craftsmanship

The restoration of Stjärnorp Castle Ruins has received widespread recognition, earning the Östergötland Architecture Prize in 2023. The jury commended it for “exploring the boundary between restoration and architecture and how we approach our cultural heritage.” Indeed, the restoration has been characterized by exceptional craftsmanship, with every detail executed with great care and respect for history.

Protective roof and elegant interiors

The ruins have been fitted with a discreetly integrated roof that shields the historic walls without impacting the exterior aesthetics. Inside, visitors are greeted by an elegant interior where modern materials such as wood, corten steel, and glass emphasize the original architectural features.

The large window openings now feature individually designed glass panels. Each panel is precisely tailored to fit the uneven shapes of the walls. The balance between history and modernity is both striking and subtle. This is evident in the newly added spiral staircase in the tower and the carefully crafted corten steel details.

“We aimed to create something that feels contemporary while rooted in the ruin’s history. The goal was for the old and the new to enhance one another, and I’m very pleased with the result,” explains Wikerstål.

Good architecture makes cultural heritage accessible

The restoration of Stjärnorp Castle Ruins shows how architecture can make cultural sites more accessible. Careful interventions have given the ruins a new function as a destination. More visitors are drawn to the area, while the project demonstrates sustainable restoration in practice.

“We hope that Stjärnorp Castle Ruins will become a place where people can meet and experience both the past and present in a unique way,” Wikerstål concludes. “By securing the ruins for the future, we ensure that coming generations can share in our collective cultural heritage.”

Awards and nominations

Stjärnorp has been shortlisted for the EUmies Award 2026 – Mies van der Rohe. The EUmies Awards were established in 1988 by the Fundació Mies van der Rohe and the European Union to recognise architecture that strengthens the interaction between culture, society, and creativity in Europe. The award celebrates projects that, in various ways, bring together the built, the human, and the natural, enhancing the quality of the environments in which we live. Stjärnorp Castle Ruin also received the Östergötland Architecture Award 2024.

Contact person

Erik Wikerstål

Architect
+46 42 19 48 56

Midsommarkransen Elementary School

A fire station turned into a school
Midsommarkransens elementary school
Architecture, Cultural Heritage, Interior Design
Education, Renovation & Transformation
Client: Skolfastigheter i Stockholm AB, Sisab
Inauguration: 2023
Location: Midsommarkransen, Stockholm
Gross area: Approximately 14,000 sqm, including 2,000 sqm of renovation
Photographer: Felix Gerlach

The former fire station in Midsommarkransen, built in the early 1940s, has been converted into a school for over 1,000 students. The building maintains a contemporary look, drawing inspiration from the fire station’s original architecture while emphasizing its function as a public building. Welcome to Midsommarkransen Elementary School.

Midsommarkransens skola

Tengbom’s assignment was to integrate the heritage-protected buildings with a modern structure, balancing aesthetics and functionality.

“We solved the equation by placing the five-storey school building behind the preserved wagon hall of the old fire station,” explains Pontus Eriksson, lead architect. “Meanwhile, we transformed the wagon hall into a school canteen with a preschool class above, seamlessly connected to the new main building.”

In this way, the wagon hall retains its historically significant facade as a backdrop at the Bäckvägen-Tellusborgsvägen intersection. The adjacent administration building has also been carefully restored.

High functionality while preserving nature

The new rectangular structure consolidates the school’s spaces across five compact floors. This design preserves much of the natural site, including a centuries-old oak tree and a neighboring wooded area. The area behind the school building has been transformed into a schoolyard that borders the Enbacken Park, complete with natural walking and cycling paths. The connection between these two areas enhances the neighborhood’s appeal for both the public and students, fostering shared use of the schoolyard and park.

Illustration of the school and schoolyard

Thoughtful material choices reflecting historical elements

The fire station’s cultural buildings are classified as green-protected, requiring consultation with a conservation officer. Tengbom’s task was to design a contemporary building that underscores its significant function within the community. But also while respecting the original architecture.
The preserved structures have been meticulously restored using original materials such as slate, brick, and wood. The new school building complements these with modern materials in a harmonious colour palette.

Midsommarkransens skola

A public building designed to stand out

The light sand-coloured concrete facade harmonizes with the surrounding buildings. Parts of the facade feature a bold, undulating relief pattern, lending the structure character and creating dynamic shadows that shift with the angle of the sunlight.

White concrete frames highlight the two entrances, positioned at opposite corners of the building. Their design draws inspiration from the lower sections of the wagon hall. The fifth floor features a lightweight structure clad in light bronze-coloured aluminum. It serves as a creative cluster for all arts-related subjects.

The roof includes a terrace with a pedagogical outdoor space. Aluminum-framed windows with deep relief profiles add an aesthetic touch while providing sun shading.

In January 2023, the school welcomed its first students.

Midsommarkransens skola

Awards and recognitions

Midsommarkransen Elementary School received a ‘Highly Commended’ distinction in the Inside Education category at the World Architecture Festival 2024. The project was also a finalist for Stockholm Building of the Year 2023

Contact person

Pontus Eriksson

Lead Architect
+46 8 412 52 60

Vendelsömalm School Building A

From the 1960s, now in new garb
Architecture, Cultural Heritage
Accessibility, Building Preservation & Restoration, Education, Renovation & Transformation
Client:
Location: Haninge Municipality
BTA: 8000 sqm
Assignment years: 2017-2021
Photographer: Felix Gerlach

In an understated concrete and wooden structure that is typical of its era, Vendelsömalm School opened in Haninge in 1966. With an aim to “preserve and reuse as much as possible,” the school has now been updated to meet contemporary needs and requirements. 

The original Vendelsömalm School consisted of a robust building with a few distinctive and sturdy materials, like untreated concrete and pine, brown linoleum and terrazzo. A minium red accent colour added contrast and recurred in the windows and wooden doors. Several renovations and technology installations were then carried out.

Vendelsömalm School
The 110-meter-long main hall and the stairway system link the building together.
Vendelsömalm School
The team made the main entrance and two schoolyard entrances accessible and replaced the entryways.

A return to the original quality

Vendelsömalm School has 600 students from preschool to ninth grade. In 2018, the school underwent an extensive and necessary renovation, replacing the ventilation and electricity. Tengbom was tasked with renovating and upgrading the main building and modernizing the accessibility and functionality of the floor plan.

“We wanted to retain the feel of the original, with cast concrete on three half-levels,” explains Tove. The 110-meter-long main hall, with its beautiful stairway, holds everything together. At the same time, we wanted to restore the former look of natural materials and recreate them in conversation with a contemporary style.

Greater security with a new floorplan

When we adapted the premises for their purpose, we moved the reception and principal’s office closer to the main entrance. The break room was also moved to improve student safety. The special education classroom, student health, library and teachers’ lounge were all placed centrally in the building.

“Vendelsömalm School isn’t a listed building. However, we brought in one of our restoration architects early on to document and analyze the building,” says Tove. “That study was the basis for several decisions.”

We let in more light

The team installed energy-efficient windows with transoms that resemble the originals, along with awnings and natural-coloured facade panels. They also made the main entrance and two schoolyard entrances accessible and replaced the entryways. Inside, they updated all installations and converted the cellar into a fan room. A new elevator now provides access down to the basement floor.

For more light, accessibility and safety, the new doors are glazed. The doors are all orange once again, like the original colour. A total renovation of the surfaces entailed new floors, a new false ceiling, acoustic solutions and fresh paint. There is now also a garbage room and a loading yard.

Vendelsömalm School
The tables and benches have an open design that neither cements roles nor determines who sits where.
Vendelsömalm School
The facades now have energy-efficient windows with transoms reminiscent of the original windows, awnings, and natural-coloured facade panels.

Renewal from historic walls

“The goal was to clean and restore the concrete in the main hall,” says Tove. “We decided to remove the old murals, which students painted with latex paint in the 90s. Unfortunately, it was hard to carry out such an extensive restoration of concrete. Instead, it was painted in concrete-like colours with the preserved rough texture of boards at the base. Old dents and the history on the walls can add a lot of beauty and invigoration.”

The false ceiling in the big main hall features untreated wood, restoring the room’s original concept. The walls in the combined assembly hall and cafeteria now have untreated wood panels, enhancing both aesthetics and acoustics.

Vendelsömalm School
A restful space.

Sound is subdued by the building – not the kids

In the open student areas, the team refreshed the original wooden furniture with modern, inviting seating and tables. They designed the adaptable module system for easy adjustments.

“The design of the tables and benches allows students to move freely without fixed roles or assigned seats,” says Tove. “The space adapts to different needs and situations. A school should be welcoming to all.”

Contact person

Mark Humphreys

Practice Director Stockholm
+46 8 412 53 43