If you’re planning a loft conversion, extension, or basement works, you may need to appoint a Party Wall Surveyor. Understanding how surveyor costs are calculated, who pays, and what’s included will help you budget effectively and avoid surprises.
What Affects Party Wall Surveyor Costs?
Surveyor fees vary depending on:
- Complexity of the project — simple extensions cost less than basement excavations.
- Number of neighbours involved — more adjoining owners means more notices, inspections, and potential Awards.
- Location — fees are often higher in London and other major cities.
- Surveyor experience — senior surveyors may charge higher rates but can often resolve matters more efficiently.
- Timescales — urgent or expedited work may attract premium rates.
Average Party Wall Surveyor Fees
Across the UK, many surveyors charge between £150–£200 per hour or offer fixed fees. For a straightforward extension, costs typically reach around £1,000 + VAT. More complex projects, such as basements, may involve two or even three surveyors, pushing costs higher.
At Simple Survey, we take a different approach:
- Party Wall Notices from £25.00
- Party Wall Awards capped at £325.00
This ensures complete cost transparency from the outset.
What Does a Party Wall Surveyor Do?
A Party Wall Surveyor’s responsibilities include:
- Inspecting the condition of neighbouring property
- Reviewing the Building Owner’s proposals
- Drafting a Party Wall Award setting out how works should be carried out
- Ensuring compliance with the Party Wall etc. Act 1996
This protects both the Building Owner (who wants to proceed lawfully) and the Adjoining Owner (whose property must be safeguarded).
One Surveyor or Two?
- Agreed Surveyor: Both parties appoint a single impartial surveyor. This keeps costs lower.
- Separate Surveyors: Each party appoints their own surveyor. This can provide reassurance but is more expensive, as the Building Owner usually pays both sets of fees.
- Third Surveyor: In cases of disagreement, a third surveyor may be called upon, adding further costs.
Who Pays?
Under the Act, the Building Owner (the person carrying out the works) is normally responsible for all reasonable surveyor costs, including those of the Adjoining Owner if they appoint their own surveyor.
In limited cases, costs may be shared — for example, if an Adjoining Owner requests additional works for their own benefit.
Controlling Costs
- Start early: Serve notice in good time to avoid rushed appointments and disputes.
- Choose fixed fees: Avoid unpredictable hourly rates where possible.
- Communicate clearly: Early discussions with neighbours often reduce disputes and costs.
- Use experienced surveyors: Expertise can resolve matters quickly, keeping fees proportionate.
📩 Contact team@simplesurvey.co.uk, England and Wales’ most cost effective Party Wall Surveying team with Party Wall Notice fees from £25.00 and Party Wall Award fees capped at £325.00. We will not be beaten on price!