The living area with underfloor heating is 130 sqm, in the basement we continue with radiators. The basement has about another 80 sqm ..... the bungalow is partly basemented, so everything except the living room. Not all walls, won’t that be too tight? I mean, insulating the walls is surely 5-10cm inward, right? In the living room / kitchen and dining area it doesn’t matter but bathroom / children’s rooms and bedroom are okay in size, but they shouldn’t be much smaller (the children’s rooms are 11 sqm) and the bedroom 18 sqm, yes and the bathroom .... well let’s say we have one .... although we’ve already had to work some magic here, so we’re throwing out one toilet and the bathtub completely from the bathroom, instead a shower and double washbasin will be installed, the “guest” toilet will then be the main toilet, for that the laundry room becomes a guest bathroom (shower / toilet) with washing machine and the bathtub gets a separate place all to get a bit more breathing room here.