Party wall surveyor Cost Calculator
If your project touches a shared wall, sits on the boundary, or involves digging near a neighbour's foundations, the Party Wall etc. Act 1996 applies. In Q3 2026 a single agreed surveyor producing an award costs about £900–£1,800; where each side appoints their own, total fees…
Open the calculator →Price party wall surveyor in 30 seconds
2 steps, using the figures from our cost guide.
How this calculator works
Every figure in this calculator is the one published in the cost table on our party wall surveyor guide. Pick the option that matches your job and the calculator returns that published range, adjusted for your region - it does not model anything the guide does not already say.
That is deliberate. A calculator whose rates drift from the page it sits under is worse than no calculator, because two numbers on the same site disagree.
What it cannot know: access, the condition of what is already there, and anything structural. Those are what separate three real quotes from each other.
Published party wall surveyor costs (2026)
| Option | Typical 2026 cost | Notes |
|---|---|---|
| London | £61–£183 | |
| South East | £56–£168 | |
| East of England | £52–£158 | |
| South West | £51–£153 | |
| Midlands | £50–£150 | |
| North West | £48–£144 | |
| Yorkshire & North East | £47–£141 | |
| Wales | £47–£141 |
These are the figures from our party wall surveyor cost guide.
Party wall surveyor calculator — FAQs
As the building owner doing the work, you normally pay all reasonable fees — including the adjoining owner's surveyor. That is why an agreed surveyor acting for both sides is so much cheaper, and worth proposing early in a friendly conversation with your neighbour.
The common triggers are cutting into or building on a shared wall, building astride the boundary, and excavating within 3 m of a neighbouring structure to a lower depth than its foundations (6 m in some cases). Loft conversions, extensions and basements catch it most often.
You still need to serve notice, but if your neighbour consents in writing within 14 days no award is needed and your costs stop there. Even then, a schedule of condition is cheap protection against a later damage claim.
Allow 4–8 weeks from serving notice to having an award in hand. Neighbours get 14 days to respond, and surveyors need time to inspect and draft. Starting work without it can be injuncted, so build the time into your programme.
Related cost guides
- Party wall surveyor cost guide — The full price guide
- All architectural services services — Browse the hub
- All BestBuilders services — Every trade we cover
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