The cost to build a house starts with a bid for the same plans and property. NAHB’s 2024 survey put construction at 64.4% of the average new-home sales price in its sample. Use that split for context and get separate numbers for land, construction and owner costs.
Cost to Build a House From Plans and Site Bids
Compare the same scope
Ask each bidder for site work, foundation, structure, mechanical systems, finishes and allowances. Identify the utility connections and work you must arrange separately.


Use national figures as benchmarks
Check the year, geography and definition before comparing figures. A sold-home price and a contractor’s construction bid can include different costs.
Use national figures as benchmarks source

Frequently Asked Questions
Can I use a national per-square-foot number as a bid?
Use it for early planning and get a local written bid based on your plans, site and finish schedule.
What should I compare before paying?
Ask each bidder for site work, foundation, structure, mechanical systems, finishes and allowances. Identify the utility connections and work you must arrange separately.