NZÚ 2026 calculator — interest-free loan and subsidy

The applicant and property meet the NZÚ conditions

Number of housing unitsAn apartment building has at least 4 units. C and D limits multiply by the unit count.

units

Area A — Insulation

The building is heritage-protectedRaised rates for walls, roof, floors above exterior and window/door openings.

External walls (incl. curtain walling)CZK 5,000/m²

m²

Roof areaCZK 5,000/m²

m²

Floors above exterior spacesCZK 5,000/m²

m²

Ceiling under an unheated attic and other structuresCZK 2,000/m²

m²

Ground-contact structuresCZK 5,000/m²

m²

Windows and doorsCZK 12,000/m²

m²

Shading technologyCZK 3,000/m²

m²

Thermal-bridge elimination at balconies and loggiasCZK 5,000/m²

m²

Area C.1 — Heat source replacement

Biomass boiler (incl. buffer tank)max CZK 100,000/unitLocal biomass stovemax CZK 50,000/unitAir-to-air heat pumpmax CZK 100,000/unitAir-to-water heat pumpmax CZK 150,000/unitGround/water-source heat pumpmax CZK 150,000/unitDistrict heating connectionmax CZK 30,000/unitCogeneration (power + heat)max CZK 100,000/unit

Area C.2 — Hot water

Solar thermal water heatingmax CZK 50,000/unitSolar PV water heatingmax CZK 50,000/unitWater-heating heat pumpmax CZK 50,000/unit

Area C.3 — Photovoltaics

Base CZK 350,000 for the first 5 kWp + CZK 40,000 per additional kWp. Battery max 2 kWh per kWp.

Installed PV output

kWp

Battery storage capacity

kWh

Area C.4/C.5 — Ventilation and waste heat

Controlled ventilation with heat recoverymax CZK 100,000/unitWastewater heat recoverymax CZK 50,000/unit

Area D — Green roof and water

Green roof only in combination with insulation or an Area C measure.

Green roofCZK 2,000/m²

m²

Greywater — connected flats

units

Low-income household bonus

Bonus CZK 2,000/m² of usable area, max 60 m² per flat.

I confirm the flats meet the eligibility criteria (income, ownership, occupancy)

Flats with a low-income household

units

Average usable area of those flats

m²

How much can you get from NZÚ 2026?

Let's prepare a budget together.