Glass House / Unit Arkitektur AB

© Krister Engström

Architects: Unit Arkitektur AB
Location: Träslövsläge, Sweden
Design Principal: Mikael Frej + Klas Moberg
Project Architects: Frans Magnusson
Client: Karin and Sven-Olav
Floor area: 250 sqm ( House), 70 sqm (House inside House)
Project year: 2006-2011
Photographs: Krister Engström, Unit Arkitektur

This project is not about form. It is about creating something that Sweden can´t offer – a nice climate! It has been verified that the space inside the glass house has the same climate as Sevilla in southern Spain.

© Krister Engström

In Träslövsläge just south of Varberg on the Swedish west coast Karin and Sven-Olav acquired a parcel of farmland. This property is located along an old village street with a vast open field behind. In addition to the old traditional main building a large barn and a smaller cottage are situated on the plot. To the south there is an extensive orchard with a rich variety of trees. The buildings are placed in parallel on both sides of a courtyard whereas the traditional farm typology of this rural area dictates buildings to be placed on three sides of the yard. Since the main building was small and in poor condition the growing family needed more space. In addition to this a large glassed entrance was also required.


The solution was to frame the courtyard with a 250 sqm greenhouse and place a smaller 70 sqm building inside. In this way the view of the orchard was saved; you see it through the glass when you enter the courtyard from the street. The total building cost equalled that of a 100 sqm house; the difference in size of the indoor space corresponds to a normal living room. So instead of 30 sqm living room in a conventional house they got 150 sqm of living space in the glazed structure. The greenhouse was built out of standard components and erected by a separate contractor.

© Krister Engström

The plan was reorganized so that the existing main building houses the bedrooms in order to avoid complicated technical installations in an old building. Another reason for this was the ability to lower the room temperature in these spaces to reduce heat loss from the poorly insulated house. The new house takes care of all the technology-intensive functions such as laundry, bathroom and kitchen. On the roof an Arabian Nights Terrace with North African climate is arranged.

© Unit Arkitektur

The old building was carefully renovated – both interior and exterior – in accordance with the clients. Floor heating is installed in both buildings. The new building has a concrete slab foundation with a surface of pigmented smooth cast concrete. Generally construction materials with high thermal inertia were selected to counteract temperature fluctuations. Walls are made up of solid light-weight concrete blocks with gypsum plaster on the inside. The roof consists of prefabricated Leca* beams with 100mm hard insulation on top. Topmost is a pressure distributing walkable 30mm layer of concrete.

© Unit Arkitektur

The greenhouse is built with standard components, including climate controlling technology such as automatic vents in the roof ridge and shading textiles with reflective aluminium coating. The ventilation and temperature is controlled by a computer. To avoid overheating in summer the inner house is supplied with pre-cooled air from ducts buried in the ground. During the cold season the same ducts help to pre-heat the fresh air and lower the need for additional heating. In the glazed space there are two climate zones, one at ground level and one – markedly warmer – in the terrace on the roof.

floor plan

The project has no definite completion date in the traditional sense that project images are taken before the family moves in. On the contrary there has been a gradual realization process going on since 2006 where the garden is prioritized.

Cite: "Glass House / Unit Arkitektur AB" 19 May 2010. ArchDaily. Accessed 30 May 2015. <>
  • Bocetos Digitales

    Glass House / Unit Arkitektur AB: © Krister Engström
    Architects: Unit Arkitektur AB
    Location: Träslövsläge, Sweden…

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    【archi info】 Glass House / Unit Arkitektur AB #Houses (archdaily) #rental_archiinfo

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    Glass House / Unit Arkitektur AB: © Krister Engström Architects: Unit Arkitektur AB Location: Träslövsläge, Swe..

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    Glass House / Unit Arkitektur AB via ArchDaily – © Krister Engström Architects: Unit Arkitektur …

  • pacco

    interesting but the inside is a bit messy.

    • INawe

      i like it actually because it shows that it is actually lived in and not some staged space for some magazine or PR.

  • Mark Allan Burginger

    Don't live in Glass Houses, but maybe #inbend this would work – (I will custom design if u want on east side)

  • Pingback: Glass House - Decoração Arquitetura Reforma Construção | Blog MadeiraMadeira

  • oreille

    Nice, but it’s just a Lacaton&Vassal beginning works… And they just make it better, since 1993 with Latapie’s house…

  • Omikey

    Presentation is everything…. consequentially this looks like nothing.

  • Razor

    Another good example of multilayer structure that leads the nature into interior gradually.Remind me House N

  • neko

    it’s interesting, but all i can think of are the birds.

    this house would be a serious bird hazard.

  • t

    zzzzzzzzzzzzzzzzzzzzzzzz………..and some more zzzzzzz

  • Unit G

    Glass House / Unit Arkitektur AB | ArchDaily

  • Rem

    Isn’t this just an ordinary greenhouse like thousands of them the Netherlands?

    It is not that they did something really interesting with it…..

  • Mies van der Rohe

    Glass House / Unit Arkitektur AB

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