Architectural Build Cost Calculator
We have developed a construction cost calculator for residential projects, updated for 2023 price per square metre build cost prices for London and the UK. Put in the basic details of your scheme, and it will quickly calculate the build cost of your extension, loft conversion, refurbishment or new build house. The estimated build cost shown below will give a very good indicator of the likely costs for building or refurbishing your project – but do remember it is always best to plan and engage with a well-established residential architecture company.
The cost calculator is to be used as a guide only. The final cost will depend on several variables including the complexity of the design, extent of structural works and level of fixtures, fittings and material finishes. It does not include professional/legal fees, statutory fees, environmental audits, other third-party fees, VAT (These costs do (or do not) include VAT – some projects are exempt from VAT e.g. new builds) or planning obligations. Prices are updated at regular intervals but may not fully reflect inflation and the effects of international health or political crises. Always ask your architects to conduct due diligence on your timescale and budget considerations.