Concept stage embodied carbon calculator designed by Treehaus Architects Pte Ltd. This is a free tool for all to use; if the calculator or its outputs are used in any publication, presentation, report, or public-facing material, please credit Treehaus Architects Pte Ltd.
0 tTotal embodied CO₂e
0kgCO₂e / m²
—Rough rating
Total embodied CO₂e
0 t
total project embodied carbon
Trees to plant for offset
0
trees over 20 yrs
Quick read-off using inbuilt tree absorption and 10% buffer assumptions. Detailed assumptions remain in the calculator below.
1. Project setup
Detached
Semi-detached
Inter-terrace
Auto footprint = build-up area ÷ storeys.
2. Component choices
Floors are counted under Slab / floor type, so structure covers beams + columns only — no double counting.
Roof structure and finish layer combined.
Allowance per m² GFA, based on division walls ≈ 0.5 × GFA.
3. Carbon breakdown
0 m² GFA
0 m² footprint
0 m height
0 m² façade
0 m² roof
0 m² PV
4. Tree offset estimate
0Trees to plant
20 yrsOffset period
420 kgCO₂ absorbed per tree over period
Treehaus note: This section estimates how many trees would be needed to absorb the project’s embodied carbon using fixed inbuilt assumptions: 20-year offset period, 21 kgCO₂ absorbed per tree per year, and a +10% survival / buffer factor. Formula: trees = total kgCO₂e ÷ (21 × 20), then × 1.10. This should be presented as an offset planning estimate, not a substitute for reducing embodied carbon at source.