The steps of building a house.
A clear path from idea to home: about 10 to 15 months from agreed brief to handover for a house, including 8 to 9 months on site.
Design brief, topography, geotechnical and utility strategy.
Architect / engineering package, RE2020, permit, finance, insurance, procurement.
Site safety, excavation, bearing acceptance, reinforcement, concrete, services below slab.
Masonry / frame, lintels, floor / roof structure, waterproofing and external windows.
MEP rough-in, pressure tests, insulation / airtightness, partitions and photographs.
Screed drying, finishes, fixtures, heat pump / ventilation, electrical and performance checks.
Acceptance, snag list, as-built file (DOE), training and maintenance plan.
Administrative milestones
- Building permit: 2-month review for a detached house, 3 months for other projects, from a complete file.
- Permit displayed on site for the whole build.
- Site-opening declaration (DOC) before starting.
- Declaration of completion and compliance (DAACT) at the end.
Source: service-public.fr, “Permis de construire” page checked 13 February 2026. Read the full guide →
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