Heating type for new construction - Which is the best?

No, the entire energy savings ordinance calculation and the energy demand are based on the heating system. With that, you would fundamentally change something

Okay. So it is actually settled then? Does it help if a simplified approval process is applied here? Or if the development area is released?

Then you probably do the 4-week round. Plus the costs for new calculations.

Can you please elaborate on that? Why should that be the case in the approval exemption procedure? The builder or the planner commit to building according to the specifications of the development plan, and that's that. As long as those are not violated, one can change whatever they want. Or not? We carried out a simplified building permit procedure, and we are also currently about to change from an air-to-water heat pump to a ground-to-water heat pump, and that’s definitely not a problem... ...at least with us, neither the district office nor the municipality checks distance areas or floor space index, and certainly not which heat pump is installed. And that is not a fairy tale, but the statement of the responsible employee from the district office... but of course, it may be different regionally.

Why should that be the case in the approval exemption procedure?

Because you also submit a building application in that procedure. And if it states that I am installing an air-water heat pump and now I install a gas heating system, that is no longer correct at first. Even if the gas heating is basically okay.

And that can cause trouble.

(Based on my experiences with the building authority, I would now also say: "Screw it". What is written, is written... the building authority usually cannot enforce a dismantling or similar.)

Best regards,

Andreas

Ok, in theory that may be the case, but to be sure whether it is also the practiced reality, I would simply ask your approving authority. As I said, we have the statement from the employee of the district office.

I also consider it absolutely impractical to submit a new building application for every [Pup]. Among other things, it also states what the interior walls (partition walls) consist of - KS. If for cost reasons we were to switch to drywall, we would theoretically have to submit a new application as well. The municipality / approving authority will not be pleased. The approval exemption procedure was precisely intended to relieve the building authorities and to transfer more responsibility (and risk) to the builder, so that would be absolutely contradictory.

But yes, formally you would have to do that. I would see the whole thing less dogmatically and more pragmatically... but as so often, everyone has to decide that for themselves.