Home extension, per m²

3,700 ø

1,850 kr at the verified-removal rate · 28 days of a personal budget

Home extension, per m², per m², new-build materials only

Where this comes from

3,700 ø

BasisBUILD/SBi 2020:04 Danish house-materials study: 7.4kg CO2e/m²/yr × 50yr design life

ConfidenceSourced and cross-checked

List version3.1 · 4/9/2026