So many houses on the market that are essentially just ruins by modern energy standards. In many cases you have no choice but to completely start anew. The issue is that the prices don’t reflect that. You have a house built in the 60s with oil heaters and no insulation going for 700k or more. So you will be out for the house/land, the demolition and then a new house as well. On the other hand trying to renovate the same house would probably be the same amount of money but you are still living in an old house.
Exzellent work. Will probably get around to installing an instance for friends and family. This seems quite user-friendly.