Estimate the full cost of your custom home project: land, construction and related fees in Hauts-de-Seine and Yvelines.
Between 50 and 1,000 m²
Between 200 and 5,000 m²
Fill in the form to get your estimate
Price per m² based on real 2026 market data for the selected city.
Price per m² according to the selected finish level (Standard, Premium or Luxury).
Approximately 8% of the land and construction price, including registration duties and fees.
Approximately 10% of the construction cost, covering drawings, site supervision and compliance.
Building permit, water/electricity/gas connections and access works.
Mandatory structural damage insurance and ten-year guarantees.
Important: This estimate is calculated from 2026 market data for Île-de-France. The final budget will depend on many project-specific factors, including architectural complexity, material quality and plot condition. A +10-15% regional coefficient is applied for departments 92 and 78.