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What does a party wall surveyor do?
A party wall surveyor administers the Party Wall etc. Act 1996 - the law that applies when building work affects a wall, boundary or structure you share with a neighbour. They serve or respond to notices, prepare a schedule of condition of the neighbouring property, and draw up the party wall award: the legal document that sets out how and when the work can proceed.
Surveyors can act for the building owner (the person doing the work), the adjoining owner (the neighbour), or both sides as an 'agreed surveyor' - often the quickest and most affordable route when both parties are comfortable with it.
When do you need one?
You'll usually need a party wall surveyor if your project involves:
- Cutting into or building on a shared (party) wall - loft conversions, chimney breast removal, inserting beams
- Building a new wall at or astride the boundary line
- Excavating within 3 metres of a neighbour's building and deeper than their foundations (6 metres for angled excavations) - common with extensions and basements
- Underpinning, thickening or raising a party wall
- Any work on a shared garden or boundary wall
What does it cost?
For a straightforward domestic project where both owners appoint one 'agreed surveyor', expect roughly £700-£1,200 including the award. Where each owner appoints their own surveyor, the building owner normally pays both sets of fees - typically £1,500-£3,000 in total. Complex jobs (basements, multiple adjoining owners) cost more.
Comparing quotes matters: fees for identical work vary widely between firms, and many offer fixed prices for serving notices and standard awards. Our matched surveyors quote for your specific project so you can compare like for like.
How it works
1Tell us what you need
Answer a few quick questions about your project and postcode. It takes about a minute.
2Get matched instantly
We match you with up to four verified local party wall surveyors who cover your area and are taking on work.
3Compare and choose
They contact you with quotes. Compare prices, profiles and reviews - then pick who's right for you.
Frequently asked questions
Do I legally have to serve a party wall notice?
Yes - if your work falls under the Party Wall etc. Act 1996, you must serve notice on affected neighbours before starting. Skipping it risks an injunction stopping your build and weakens your position in any dispute about damage.
What's the difference between an agreed surveyor and separate surveyors?
An agreed surveyor acts impartially for both owners - one fee, usually faster. If either owner prefers, each can appoint their own surveyor and the two agree the award between them. The building owner normally pays both fees.
My neighbour has served ME a notice. Do I pay for a surveyor?
Usually not. If you dissent to the notice and appoint a surveyor, the building owner (your neighbour doing the work) normally pays reasonable surveyor fees for the award.
How long does a party wall award take?
Once surveyors are appointed, a straightforward award typically takes 2-6 weeks. Notices themselves have statutory periods - one or two months depending on the type of work - so build the timeline into your project plan early.
What qualifications should a party wall surveyor have?
Look for membership of RICS (Royal Institution of Chartered Surveyors) or the FPWS (Faculty of Party Wall Surveyors), plus professional indemnity insurance. Every partner on our platform is verified for exactly these credentials before receiving enquiries.
Can my builder or architect act as the surveyor?
The Act requires the surveyor to be independent - it can't be you, and it shouldn't be someone with a stake in the project. An independent, accredited party wall specialist protects both sides.
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