Home extension, per m²
3,700 ø1,850 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 øBasisBUILD/SBi 2020:04 Danish house-materials study: 7.4kg CO2e/m²/yr × 50yr design life
ConfidenceSourced and cross-checked
List version3.2 · 27/9/2026
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