House Renovation Cost Calculator UK

Free UK renovation planning tool

House renovation cost calculator

Build an early budget for a cosmetic refresh or a moderate renovation — updating kitchens, bathrooms, décor, flooring or adding a room. Choose the work you actually expect to do and see a transparent, room-by-room planning range.

✓ No sign-up required✓ UK regional adjustment✓ VAT and contingency shown
Step 1 of 4About 3 minutes

Tell us about the property

Floor area, age and location create the starting point. You will choose the individual work packages next.

Overall level of refurbishment

What work is likely to be included?

Select the packages you expect. Leave uncertain items unticked and treat the result as an early planning allowance.

Extensions, loft conversions, damp, asbestos and major structural defects need separate investigation and are not automatically included.

Quality, access and delivery

These choices affect labour time, material allowances and how easily the project can be coordinated.

Finish level

Access and working conditions

A listed building, unknown structure or occupied home normally needs more survey work and a larger contingency than a straightforward empty property.

VAT and contingency

Choose how you want the cash budget presented. Check the VAT status of every supplier before relying on the total.

Show figures with VAT?

Contingency allowance

This is a planning estimate, not a quotation or survey. Existing conditions, design detail, local availability and tendering can materially change the final price.
Your whole-property planning estimate

A working range, not a single false-precision number

Lower range

—

Tight scope control, competitive quotes and few surprises.

Recommended working budget

Expected range

—

Includes your selected VAT treatment and contingency.

Upper range

—

More complex delivery, higher quotes or additional unknowns.

Expected budget breakdown

Refine the biggest parts of the budget

Use the room calculators for more detailed assumptions before requesting quotations.

Kitchen calculator →Bathroom calculator →Flooring calculator →Loft & extension calculator →

Ready to turn the plan into comparable quotes?

Keep the budget breakdown, define the scope clearly and ask local companies to quote against the same work.

Show the optional quote form

RenoTally provides early budgeting allowances only. It does not inspect the property, diagnose defects or replace a measured specification, survey or written quotation. Read How Our Estimates Work and verify the scope, VAT, exclusions and credentials before appointing anyone.

Keep planning

See the full picture for your renovation project.

Read the full cost guide →Refurbishment calculator →
Ready to compare the plan with local quotes?Optional, no obligation, and the estimate remains available without signing up.

Tell local companies about your refurbishment

Add the property, scope and timing so they can review the project before contacting you.

There is no obligation to proceed. Your information is used for this quotation request in line with the RenoTally privacy policy.