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Building & Living

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.

Wo wohnen Sie?

Damit wir Apply for a KfW Loan for Energy-Efficient Renovations mit dem zuständigen KfW in Ihrer Stadt anzeigen können.

Oder Großstadt wählen:

Sie werden zur geführten Suche weitergeleitet – mit Kontaktdaten, Termin und nächsten Schritten für Apply for a KfW Loan for Energy-Efficient Renovations.

Processing: approx. 3 weeksSuccess rate: 85.0 %
Last reviewed: September 14, 2026

Quick answer

  1. 1

    Documents you need

    Energy Consultant's Report / Application Confirmation (BzA) · Cost estimates

  2. 2

    Responsible authority

    The authority of your main residence

  3. 3

    How to do it

    Apply directly online

  4. 4

    Costs

    50–500 € je nach Verfahren

Find the responsible authority

How to proceed

  1. 1

    Consult energy efficiency experts

    Planning must be supervised by a licensed professional.

  2. 2

    Submit the application through your primary bank

    The primary bank forwards the application to KfW.

  3. 3

    Carry out the action after confirmation

    The loan will be disbursed upon completion or in installments.

Responsible authority

The authority of your main place of residence is responsible.Find authority →

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

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.

Freshness & source

Maintenance
Continuously reviewed & updated
Source
BMWSB
Data quality
100 %

Read more

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