KFW funding for a condominium / classification

Funding is always provided based on the number of residential units in the building.

Let's be precise. The entire building must achieve a standard X for the individual apartments to be eligible for funding, provided that the respective owners also apply for it.

Example from practice: New construction of a multi-family house complex with a full-range retailer on the ground floor. Residential area plot. Planned according to KfW 55, but the commercial unit on the ground floor causes problems because, due to the entrance area and the glass fronts, only this unit does not comply with the KfW 55 requirements. The result is that because of this Edeka/REWE, in the example, funding could not be applied for over 100 residential units.

Applies only to the example of


Excerpt KfW from the FAQ

System boundaries, mixed-use buildings

If a separate consideration of the building parts with residential and non-residential use is not required according to § 22 Energy Saving Ordinance for a mixed-use building, the proof for a KfW Efficiency House must be provided for the entire building accordingly. However, if the building parts must be considered separately according to § 22 Energy Saving Ordinance, the proof of a KfW Efficiency House must also be provided separately for each building part. The consideration of separating components is carried out according to Annex 1 Number 2.6 Energy Saving Ordinance. In the case of mixed use, the following cases must be distinguished:
• If the building is predominantly used for residential purposes (> 50% of the building usable area), it is generally considered a residential building. In this case, the residential building part must be accounted for separately according to § 22 paragraph 1 Energy Saving Ordinance if the following three criteria are met for the non-residential building part:
- The use is not residential-like and
- the technical equipment of the non-residential building part differs significantly from that of the residential use (e.g. additional ventilation technology, cooling, etc.) and
- the share of the non-residential use in the building usable area is significant (generally > 10%).
• If the building is predominantly used for non-residential purposes (> 50% of the heated or cooled net floor area), it is generally considered a non-residential building. The following rules apply for accounting according to § 22 paragraph 2 Energy Saving Ordinance:
- If the share of areas with residential-like use is insignificant (generally < 10%), the building is to be accounted for entirely as a non-residential building.
- If the share of residential use is significant (generally > 10%), a separate proof must be provided for the residential building part.
The conditions under which the building parts of mixed-use buildings are to be considered either jointly or separately are commented on in Interpretation XI-27 to § 22 Energy Saving Ordinance 2009 (mixed-use buildings). The evaluation and determination of the required consideration for a mixed-use building is carried out by the energy efficiency expert based on the legal and regulatory provisions.

Thanks first of all for the nice messages, we had the conversation with the builder today, he said they build according to KFW standard. Now the question is, what is the definition of KFW standard nowadays? However, he didn't know in which direction and stated that the building application took place before this new subsidy, so last year. Does he have to submit an application to KFW to prove whether it goes in the direction of KFW 55 or rather 40? Because if, for example, we apply for a loan, the bank also forwards it to KFW, namely the 153 one. Do we already need to have a notice from the builder stating that it is in the direction of KFW 55, 40? Or is it enough if we simply hire an energy expert afterwards as requested by KFW?

Thank you very much in advance

You must submit the confirmation of application (BZA) to the KfW from the energy consultant of the developer of your house bank. It also states there whether KfW55 standard or better.