Construction efficiency and carbon productivity analysis
Typical Build Programme
Simplified Gantt chart showing key construction phases for a typical Simplicity residential project.
Foundation
4 weeks
Structure (Walls)
6 weeks
Upper Floors
8 weeks
Roof & Cladding
4 weeks
Windows & Facade
5 weeks
Fit-out
6 weeks
Core Construction Elements Carbon Analysis
Embodied carbon breakdown for primary building systems (A1-A3: Product & Manufacturing, A4-A5: Transport & Construction). Click an A4-A5 value to open that element's activity calculator, prefilled with the selected project's data.
How the trades stack up week by week. The industry baseline runs trades sequentially over a long programme; Waiatarua overlaps them for a shorter, sharper build — the speed dividend that drives A5 construction carbon down. Scrub through the weeks to see people, material, plant, fuel and power on site.
Weekly site activity by trade
Week 1
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0
People on site
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0
Material (t/week)
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0
Equipment (mach-hrs)
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0
Fuel (L diesel)
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0
Electricity (kWh)
The speed dividend: Baseline vs Waiatarua
Apartment Construction Analysis
Worker requirements and carbon metrics per 10-day construction period for typical apartment layouts.
Type A - Studio (45m²)
Living/Bedroom
Bath
Kitchen
Workers per 10-day period:
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3.0 workers
A1-A3:320 kgCO2e/m²
A4-A5:48 kgCO2e/m²
Type B - 1 Bedroom (65m²)
Living
Bedroom
Bath
Kitchen
Workers per 10-day period:
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3.5 workers
A1-A3:305 kgCO2e/m²
A4-A5:46 kgCO2e/m²
Type C - 2 Bedroom (85m²)
Living
Bedroom 1
Bedroom 2
Bath
Kitchen
Workers per 10-day period:
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4.0 workers
A1-A3:295 kgCO2e/m²
A4-A5:44 kgCO2e/m²
Productivity Insights
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Efficient Labor Use
3-4 workers per apartment reduces coordination complexity and improves quality
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Lower A4-A5 Carbon
Larger apartments show improved carbon efficiency due to optimized construction sequences
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Predictable Timeline
In-situ concrete methodology enables consistent 10-day construction cycles