Tiny house has extension built completely around it
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Generally if the family outgrows their house they usually relocate to a bigger house or have an extension built off the house to make it bigger. However, one home owner in Austria didn't confirm to the norm as they chose to extend their house but had a new exterior built around their existing house. So the original Haus Hohlen tiny house has become a part of the interior of the new house.
The Haus Hohlen is found in Dornbirn, Austria, and was built in 1961. At this time it was just 85 square meters and in 2012 it became too small for the residents. They didn’t want to leave the house but extensive extensions where needed, so they came up with a plan to renovate and extend it.
There wasn't much worth preserving apart from the stonework of the house. Instead of demolishing it, they chose to gut it and take away any fixtures that were unwanted. This left the original structure in place to be engulfed by new exterior, however, the original structure could still be recognised even though some of the features of it had to be placed elsewhere in the new house. An example of this is that some of the windows of the tiny house have now become passageways, a pass through and niche for a basin.
The brand new exterior extension has been made from lightweight timber and this was used so as to take full advantage of the potential for prefabrication, which allows for fast construction. By using materials that are environmentally sound, this helps with the temperature inside the house. The new house was extended by 4 metres at the gable end along with 1.5 metres at the sides of the house. The roof was built straight over the existing one.
The architect behind the house explained the project saying: "We used the old house's tiles and mixed them with new ones. This is a traditional technique, when stables or other buildings are expanded."
[Image Source: Jochen Specht]
Many new windows were included in the design of the new house and this was so that the residents could take full advantage of the beautiful views. The designers also made improvements to the insulation along with the heating system. The windows have all been treated to new double glazing and the oil heating system was replaced by a new heat pump that came with geothermal probes. Additional under floor heating was also installed in the new house and foam glass insulation was used to keep all that heat in. All these efforts led to a reduction in the heating energy of the Haus Hohlen to just 45 kWh/sq-m per year.
[Image Source: Jochen Specht]
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