From illegal construction to approved construction or new construction!

Hello,

I bought a house which is half an illegal construction. I was at the office today and have the possibility to have the not yet approved part retroactively approved.

Currently, I am fighting to be able to keep the house as it is and to start the renovation I had planned.

For that, plans need to be created and then a building permit must be applied for!

I talked to an architect and overall it would cost me around €5,000 (initial rough estimate) = for the plans, structural engineer, surveyor, and building permit. That is still attractive for me.

Now comes the part where I don’t yet see a solution that is economically viable: the part to be retroactively approved will be considered a new building. So the Energy Saving Ordinance applies here, which is difficult for a building from 1959. How am I supposed to achieve an economically feasible U-value of 0.28? The only hope I see is paragraph §25, the exemption. Meaning that the specified U-value is not economically achievable, but that is without including the old building in the economic calculation, as it theoretically does not exist!

The house is completely built with double walls using half bricks with a 5 cm air gap. I would want to do core insulation. The whole house is on one level and has a size of 95 square meters.

I would be very interested in ideas and suggestions or simply thoughts that come to someone. So an open brainstorming :-)

Who claims that according to the [Energieeinsparverordnung] an illegal building is treated as a new building?!

Aside from that, your house can contain asbestos and be contaminated with [pak], that should also be clear.

According to the Energy Saving Ordinance, it is not the illegal construction that is treated as a new building but: If someone wants to have a building approved retroactively, the illegal construction is regarded as if it were a new building. And since it is considered a new building by the authority, the Energy Saving Ordinance applies. Somewhat moderated in my case because it is an extension, but it applies.

Again: Who said that the [Neubau-Energieeinsparverordnung] values have to be complied with?!

I!