Renovation Subsidy Calculator

Build a GreenCalc API request interactively. Fill in your renovation details below and get a ready-to-use curl command for the sandbox API.

Your Renovation Details

Your API Request

Copy this command to simulate subsidy eligibility in the GreenCalc sandbox:

curl -X POST https://greencalc.io/api/v1/eligibility/simulate \
  -H "Content-Type: application/json" \
  -H "X-Api-Key: gc_sandbox_demo_key" \
  -d '{"country_code": "FR",
    "household": {"annual_income": 30000, "persons": 3, "owner_status": "OWNER_OCCUPIER"},
    "property": {"construction_year": 1985, "property_type": "HOUSE", "surface_area": 100},
    "works": [{"work_type": "ROOF_INSULATION", "estimated_cost": 15000}]
  }'

What Happens Next

The API returns a JSON response with all eligible subsidies: grants, tax credits, loans, and bonuses. Each result includes the scheme name, estimated amount, conditions, and whether the household qualifies.

Explore the detailed subsidy pages for each country:

🇫🇷 France 🇩🇪 Germany 🇮🇹 Italy 🇧🇪 Belgium 🇪🇸 Spain

Try the GreenCalc API

Calculate subsidy eligibility for any EU renovation project with a single API call.

Read the Docs