Construction supervision costs - efficiency proof KFW etc.

Hello everyone,

can someone help me and shed some light on this? We are just starting the planning for our single-family house. At the moment, I am concerned about the costs for construction supervision for the efficiency certificate KFW 55. I have already tried to read up on it, but somehow I didn’t really understand it. A conversation with an employee of a prefabricated house manufacturer and another with an architect only confused me more.

The prefabricated house manufacturer said the certificate only costs a few hundred euros and that there are different ways to prove it, you can calculate it and it doesn’t cost the world.

The architect says, phew, construction supervision has to check everything. Transitions between walls, ceilings, window connections, thermal bridges, etc. cost several thousand euros.

Uhh, so what now? :-D

Is it because of the different construction methods ([Fertighaus/Holz] vs. [Massiv])?

The statement from the architect would make sense to me insofar as the KFW pays a subsidy of 50% up to a maximum of 4000(?) EUR. And as far as I understand, construction supervision is a prerequisite by KFW for the KFW loan.

It's not about whether KFW 55 makes sense financially or not. That is another topic.

Maybe someone can help shed some light on this :-)

Thanks in advance!

With us, Massivhaus in southern Schleswig Holstein, the tree monitoring by the consultant costs €4,000. He has checked the planning and calculation and will also check during the construction phase whether everything is implemented correctly.

With us, the energy-related expert planning with corresponding independent construction supervision by our architect costs a flat rate of 2,500 EUR.

Thanks already for your answers. That seems to vary quite a bit. I have also heard significantly higher prices. But I see that correctly that this is a requirement for [KFW - Förderung]?

The construction supervision itself is also eligible for funding through KfW Program 431

That is correct. The efficiency subsidy Kfw55/40 is only available with certification from the efficiency consultant. However, they only check compliance with the efficiency requirements and are therefore not a traditional construction supervisor.