KfW 261 — Energy Efficiency Refurbishment
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.
In short
How much can I borrow under KfW 261?
Up to 150.000 € of subsidised loan 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.
Do I apply for KfW 261 directly with the KfW?
Never — 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 does the KfW 261 energy efficiency refurbishment loan cover?
KfW 261 funds up to 150.000 € per residential unit for a full refurbishment to Efficiency House standard, and it can be combined with the Denkmal-AfA tax depreciation for listed buildings.
On 21.07.2026 the balance of the subsidy shifted fundamentally: the programme now leans less on a repayment grant and more on a lower interest rate instead — a structural change in how the funding pays off, not just a rate adjustment.
Renovation loans in Germany more broadly can run alongside KfW funding or replace it entirely, depending on the scope of the work and whether the Efficiency House threshold is realistically reachable.
Which route makes sense financially depends on the building's starting condition and the size of the planned works, so it is worth checking both options before committing to either.
What the programme grants
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 21.07.2026.
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 block 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?
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 21.07.2026.
What changed on 21.07.2026?
Which standard does the building have to reach?
Can KfW 261 be combined with regional funding?
Does it work together with the Denkmal-AfA?
Do I apply directly to the KfW?
Related financing topics
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