Apply for a KfW Loan for Energy-Efficient Renovations
Low-interest KfW loan for a comprehensive energy-efficient renovation to the Efficiency House standard (BEG WG) – applied for through your bank before work begins.
How to proceed
- 1
Consult energy efficiency experts
Planning must be supervised by a licensed professional.
- 2
Submit the application through your primary bank
The primary bank forwards the application to KfW.
- 3
Carry out the action after confirmation
The loan will be disbursed upon completion or in installments.
Required documents
- Energy Consultant's Report / Application Confirmation (BzA)Mandatory
- Cost estimatesMandatory
Responsible authority
The authority of your main place of residence is responsible.Find authority →
Fees
Varies by case
Processing time
approx. 3 weeks
Official: max. approx. 2 weeks
Online application
Online possible – at the responsible authority
Common mistakes
- • Application submitted directly to KfW rather than through the applicant's primary bank
- • Work began before the commitment was made
Common reasons for rejection
- • Application after the start of the project
- • Not a certified energy efficiency expert
The essentials before applying
Who is eligible?
Owners and buyers of residential buildings who are renovating a building to meet the Efficiency House standard.
Income limit
The limit varies by household and region – see the table at the responsible authority or in the application assistant.
Processing time
Nationwide: approx. approx. 3 weeks
Success rate
approx. 85.0 % (estimate)
Most common mistakes
- •Application submitted directly to KfW rather than through the applicant's primary bank
- •Work began before the commitment was made
Common reasons for rejection
- •Application after the start of the project
- •Not a certified energy efficiency expert
Alternatives
- Check related services in the application assistant
- Use social counselling before applying
If rejected
Read the decision carefully: often submitting missing documents or reapplying helps more than an objection.
Related services
Questions & Answers
Do I have to go to KfW?▼
No, the application must be submitted exclusively through your bank.