MONOGRAPH VOL. 03 // COMMISSION ECONOMICS
Achieving Cost Certainty on $6M–$25M Custom Residences Before Tender
Margaux Delacroix, ARB
How early quantity-surveyor benchmarking, quarry block reservation, and 1:5 joinery detailing eliminate mid-build change-order inflation.
Custom residential budget overruns rarely happen on site—they originate from under-detailed tender packages that force contractors to carry 20% risk contingencies. At Atelier Haven, every bronze threshold, concealed diffuser, and stone slab book-match is resolved at 1:5 scale prior to breaking ground.
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ATELIER HAVEN
RIBA, AIA & SIA chartered architectural practice crafting monolithic stone, timber, and net-zero private sanctuaries across Zurich, Los Angeles, and Kyoto.
© 2026 ATELIER HAVEN ARCHITECTURE & INTERIORS · RIBA / AIA / SIA CHARTERED PRACTICE
ZURICH · LOS ANGELES · KYOTO · 4 COMMISSIONS / YEAR