Build Cost

House construction cost estimator

Multiply your floor area by a rate you trust, then add the preliminaries, professional fees and contingency you actually expect to pay.

There is no official government “cost per square metre” on this page. Rates vary by county, finish, labour and materials. Enter a figure from a builder, quantity surveyor or a recent comparable project. Statutory fees (NCA, NEMA, county approvals) are included only if you type them.

Enter the rate in Kenya shillings per square metre even if you typed the area in square feet — the area is converted first. No default rate is filled in, because none was verified from an official schedule.

Type NCA, NEMA, county building-plan or inspection fees only if you have the current official amount. This tool does not invent those charges.

How the estimate is worked out

Construction cost = area in square metres × the rate you entered. Square feet are converted at 1 ft² = 0.09290304 m². Preliminaries are a percentage of that construction figure. Professional fees and contingency are percentages of construction plus preliminaries. Statutory fees are added as a shilling amount you typed. None of those percentages is a legal requirement.

Sources (dated 12 November 2026)

  • No official published government or IQSK construction-cost schedule was verified at launch, so this page does not pre-fill a rate per square metre.
  • Conversion: 1 square foot = 0.09290304 square metres (international yard and pound agreement).

Disclaimer

Build Cost is a free worksheet, not a quotation, bill of quantities or structural design. Get a registered quantity surveyor and contractor to price the actual drawings. This page does not collect personal data.