Cost calculator: get an instant estimate
Answer a few quick questions about your home and project, and we'll give you a estimated total for your London renovation, extension or new build.
About you & your home
What type of home do you live in?
Project size
What is the approximate size of your project?
Project type
What type of project are you planning?
Choose a home type first — some project types aren't available for every property.
Design & permissions
Do you already have drawings or plans?
Do you know if planning permission is needed?
We'll flag this for a quick consultation — planning requirements can be confirmed early in your project.
Is your property listed or in a conservation area?
We'll flag this for a quick consultation — listed status can affect materials and approvals.
Key features
Will you need to remove internal walls to create open-plan space?
How many structural walls, approximately?
Would you like roof windows or skylights?
A few details from you, please…
Contact information
Please enter your first name.
Please enter your last name.
Please enter a valid email address.
Please enter your phone number.
Please enter the project postcode.
Please accept the terms and conditions to continue.
Your estimate is ready
Your estimated project cost is
£0
This is a guide estimate based on the cost of typical London projects completed in 2026. Actual costs will vary depending on site conditions, specification, and the final design. Excludes VAT.
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No obligation. Our team will review your project and contact you.
Brikk cost estimates are indicative only and do not constitute a formal quotation. Costs may vary depending on site conditions, specification, planning requirements and market conditions at the time of build.
