Family wraps home in greenhouse to warm up Stockholm weather

Family wraps home in greenhouse to warm up Stockholm weather

The average temperature in Stockholm in January is -3°C (27°F). For Marie Granmar and Charles Sacilotto it can be much warmer thanks to the greenhouse that blankets their home.

“For example at the end of January it can be -2°C outside and it can be 15 to 20°C upstairs,” explains Sacilotto. He was inspired to build a house-in-a-greenhouse through his relationship with architect Bengt Warne who began designing the first Naturhus (Nature House) in 1974*.

Originally Sacilotto looked for an empty lot to build an entirely new Naturhus, but he eventually settled on an old summer house on the Stockholm archipelago. Using Warne’s design, he covered the small summer house, plus an addition, in 4 millimeter glass. The footprint of the greenhouse is nearly double that of the home, leaving plenty of room for a wrap-around garden, and since inside the bubble it’s a Mediterranean climate, the couple now grow produce atypical for Sweden (e.g. figs, tomatoes, cucumbers).

The favorite spot is the glass-covered roof deck. Since there’s no longer need for a roof, the couple removed it and now have a large space for sunbathing, reading or playing with their son on swings and bikes.

The greenhouse isn’t the only novel point to the Granmar-Sacilotto home. They are also completely independent from city sewage. Built by Sacilotto- an engineer by training-, the sewage system begins with a urine-separating toilet and uses centrifuges, cisterns, grow beds and garden ponds to filter the water and compost the remains.

* In the video, Granmar mentions architect Bengt Warne’s influence in the 1990s since this is the date he reached a larger audience with his book release.

Original story:


Kirsten Dirksen


What do you think?


Written by Aleksandar

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  1. Thanks for the interest in our nature house, and feed-back!! We will try to answer all your questions in our book that is planned for September 2017. To be able to finalize the book some funding is needed. Therefor you are very welcome to back our project on Kickstarter:
    If we get enough funding, we could also translate the book into English.
    best regards, Marie and Charles

  2. This is a very interesting project. What material did you use in the window frames? Is it glass? In greenhouses as I know they use
    cellular polycarbonate. and In summer, when the temperature is high, how do you balance the inside temperature? Thank you

  3. You know if you put wind turbines meant for houses across the top off the greenhouse
    You could easily keep it warm in the winter by lining the windows with heat strips and not worry about extra electric usage
    Still using mother nature to keep greenhouse at a constant temperature year round

  4. So I am curious. If they were to have, perhaps put another layer of the greenhouse on the INSIDE, creating a pocket in the walls. Would that offer a larger amount of warmth in the winter and additionally reduce the heat in the summer? Potentially giving them a more equalized temperature throughout the year?

  5. It would be ideal for a hostile planet. On Earth, if you don't like your surroundings, you can move. I would definitely move before living in a bubble. This house is not for me.

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GeoThermal Greenhouse Build | Part 2

GeoThermal Greenhouse Build | Part 2