KfW 261 energy efficiency refurbishment: what does the loan cover now?
Up to 150,000 € per residential unit for a full energy retrofit (refurbishment) to Efficiency House standard — and combinable with the Denkmal-AfA. On 21.07.2026 the balance of the subsidy shifted fundamentally: less repayment grant, a lower interest rate instead. Renovation loans in Germany can run alongside or instead of KfW funding, depending on the scope of the work.
What changed in KfW 261 in July 2026 — and when is a renovation loan the better route?
On 21.07.2026 the balance of KfW 261 shifted: less repayment grant, a lower interest rate instead. KfW 261 funds up to 150,000 € per residential unit for a full refurbishment to Efficiency House standard. A renovation loan can run alongside KfW funding or replace it, depending on the scope of the work, so check both routes.
How much subsidised loan does KfW 261 provide per residential unit?
KfW 261 covers a full refurbishment to Efficiency House standard with up to 150,000 € of subsidised loan per residential unit.
Up to 150,000 € per residential unit: In a building with several units the amount multiplies, which is why the programme matters to investors and not only to owner-occupiers.
Always through your own bank, before commissioning the works: The application always runs through your own bank, and it must be filed before the works are commissioned. A late application forfeits the funding entirely. What our advice costs.
Conditions: minimum standard, building age and application route
150,000 € of subsidised loan per residential unit. In a building with several units that multiplies — which is why the programme matters to investors and not only to owner-occupiers.
The minimum standard after refurbishment is Efficiency House 85. The building must be at least five years old. What is funded is the refurbishment as a package, not an individual measure.
The application always runs through your own bank, never directly with the KfW.
Source: BEG-Förderrichtlinien Wohngebäude (BEG WG) and Einzelmaßnahmen (BEG EM), BMWE, effective from 21.07.2026, published on 20.07.2026 at energiewechsel.de; KfW overview page 'Adjustments 2026'; KfW press release of 08.07.2026. Checked on 21.09.2026.
Less grant, cheaper money
The reform shifted the weight of the subsidy rather than removing it: the repayment grant became smaller, the interest rate lower. Applications received up to 20.07.2026 were still assessed under the previous terms.
Whether that is an improvement in your case is a calculation, not a slogan. A lower rate is worth more the longer you hold and the larger the loan; a repayment grant is worth more on a short horizon. Marginal tax rate and holding period decide it.
Where the second and third building blocks come from
KfW 261 combines with most of the regional funding banks — IBB Berlin, SAB Sachsen, NRW.BANK, L-Bank Baden-Württemberg and others. That can produce up to three financing components for a single refurbishment.
It also combines with the Denkmal-AfA under § 7i EStG on a listed building. For an internationally based investor that pairing is often the decisive one: subsidised money on the refurbishment and accelerated depreciation on the same works.
What has to be managed is the sequence and the deadlines. Each programme has its own cut-off, and one missed order of filing can forfeit an entire tranche.
The mistake that forfeits the funding
The application must be filed before the works are commissioned, and it must go through your bank. Filed afterwards, the funding is gone — there is no discretion and no appeal.
This is the most common and most expensive error in financing a refurbishment, and it is entirely avoidable by fixing the order at the outset. The owner-occupier subsidy roadmap sets out the sequence in which the individual programmes have to be applied for so none is lost.
Frequently asked questions
How much can I borrow under KfW 261?
Up to 150,000 € per residential unit. In a building with several units the amount multiplies accordingly — which is what makes the programme relevant for investors, not only for owner-occupiers.
Source: BEG-Förderrichtlinien Wohngebäude (BEG WG) and Einzelmaßnahmen (BEG EM), BMWE, effective from 21.07.2026, published on 20.07.2026 at energiewechsel.de; KfW overview page 'Adjustments 2026'; KfW press release of 08.07.2026. Checked on 21.09.2026.
What changed on 21.07.2026?
The balance of the subsidy shifted: less repayment grant, a lower interest rate instead. Applications received up to 20.07.2026 were still assessed under the previous terms. Whether the new mix is better or worse for you depends on your marginal tax rate and on how long you intend to hold the property — it is worth calculating, not assuming.
Which standard does the building have to reach?
Efficiency House 85 is the minimum after refurbishment. The building must be at least five years old. What is funded is the refurbishment as a whole, not a single measure — for a single measure such as a heating replacement, KfW 458 is the relevant programme.
Can KfW 261 be combined with regional funding?
Yes, with most of them — IBB Berlin, SAB Sachsen, NRW.BANK, L-Bank Baden-Württemberg and others. That can produce up to three financing components for one refurbishment. The order of applications and the deadlines then have to be coordinated so that no subsidy lapses.
Does it work together with the Denkmal-AfA?
Yes. A listed building being refurbished can carry both the KfW 261 loan and the depreciation under § 7i EStG. For a non-resident investor that combination is often the decisive one — but the sequence of applications matters here too.
Have the refurbishment financing checked
Initial consultation free and without obligation — the commission is, as a rule, paid by the bank. we check over 650 banks plus every regional funding programme, and coordinate the order of applications. In English.
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Editorially responsible: Olga Nikushkina — owner, §34i GewO (German mortgage brokerage), adviser register D-W-132-ZUCB-95. Specialised in German property financing with an international dimension: non-residents, foreign-currency income, cross-border workers, expats. Siegfried Perini is entered in the German intermediary register under this licence as a person directly involved in brokerage and advice (§ 11a GewO), active in real estate since 1992. Not legal or tax advice.