Party wall problems in a building dispute — the basics
The short answer: work on a shared wall (loft conversions, extensions, chimney breast removal) usually needs party wall notices under the Party Wall etc. Act 1996. A builder who ignored the process has exposed you to neighbour claims — that exposure is part of your damages.
REVIEWED BY: Sean McNamara on 2026-09-03
What the Act requires (in outline)
Written notices to adjoining owners before notifiable work; consent, or a party wall surveyor procedure (surveyors' fees fall on the builder who triggered the work). A loft conversion touching the party wall without notices is the classic miss — see loft conversion disputes.
If your builder skipped it
Your neighbour can seek an injunction to halt work or compensation later. Those losses flow from the builder's breach of their contract with you — document everything and include the exposure in your schedule of loss. Take advice on the Act itself: it is a separate specialist procedure.
The dispute route
Same core route: letter before action → small claims within the limit; the Act's own surveyor route runs alongside for the wall.
This page is general information, not legal advice. Verified 2026-09-03.
Preparing a claim? EvidenceCanvas (Casewright) helps you organise your evidence and draft pre-action documents for the small claims track. It is not a law firm and does not give legal advice.
Reviewed by Sean McNamara · 2026-09-03 · Independent information directory — not legal advice.