German condo owners advised on securing up to 70% heating‑system subsidies

Property owners in German condominium associations (WEG) can obtain generous state funding for replacing fossil‑fuel heating systems with renewable alternatives. The basic application to the KfW development bank provides a 30 % grant plus a 5 % efficiency bonus. Additional bonuses increase the total support to up to 70 % of eligible costs: • A 20 % “climate‑speed” bonus applies if the heating swap is completed by 31 December 2028. • A 30 % “income” bonus is available to households with taxable income below €40,000.

The funding is calculated on the portion of costs that qualifies for subsidies (e.g., a €150,000 heat‑pump installation is capped at €121,000). For an eight‑unit building, the base grant yields €42,350, or €5,294 per unit, and the extra bonuses can raise the total to €10,588 per unit, leaving owners with a net outlay of about €8,162 each. Experts advise owners to verify personal eligibility early and gather required documents such as registration confirmations, land‑register extracts and, for the income bonus, recent tax statements. “It pays off to check the funding options in detail,” says Sandra Duy, an energetic‑renovation specialist at Finanztip.

Owners should submit the communal application first, then file individual supplemental requests for the additional bonuses before the 31 December 2028 deadline.