When a party wall, boundary or building defect dispute heads towards court, you need an expert witness surveyor whose evidence will stand up. Party Wall Surveyor London provides CPR Part 35 compliant expert witness services across London and the South East: independent reports, single joint expert appointments and courtroom testimony from RICS chartered surveyors with genuine day-to-day party wall and boundary practice. Call 0204 579 8270 for a confidential discussion.
Our expert witness services
- Party wall disputes — validity of notices and awards, surveyor conduct, damage causation and quantum under the Party Wall etc. Act 1996
- Boundary disputes — measured surveys, deed interpretation and expert reports for court or mediation
- Building defects and damage claims — cracking, movement and vibration damage attributed to neighbouring works
- Rights of light — technical loss-of-light assessment supporting claims and defences
- Single joint expert — instructed jointly by both parties to control costs
Why instruct us as your expert witness building surveyor
The courts expect an expert’s overriding duty to be to the court, not the instructing party. Our reports follow CPR Part 35, the Practice Direction and the RICS practice statement Surveyors acting as expert witnesses. Because we handle live party wall and boundary instructions every week across London, our opinions rest on current practice — not theory — and we explain technical issues in plain English that judges, arbitrators and juries follow.
What our expert witness reports include
Instructions and issues; inspection findings with photographic and measured evidence; analysis against the Act, case law (including Kaye v Lawrence and related authorities) and RICS guidance; a reasoned opinion; and the required statement of truth. See what an expert witness actually does.
Fees and timescales
Expert witness work is charged hourly with a written fee estimate after an initial review — typical London party wall expert reports run £1,500–£5,000 depending on complexity; court attendance is quoted separately. Reports are normally delivered within 2–4 weeks of inspection.
Frequently asked questions
Do you act for claimants or defendants?
Both, and as single joint expert — our duty is to the court either way.
Can you review another surveyor’s award or conduct?
Yes. Award validity and surveyor conduct reviews are among our most common instructions.
Which courts do you cover?
County Court and High Court matters, plus arbitrations, adjudications and mediations across London.
Instruct an expert witness surveyor
Call 0204 579 8270 or send case papers for a free initial view. Solicitor enquiries welcome.