No Party wall agreement

At a glance, the article explains that carrying out building work without a proper Party Wall Agreement can create serious legal and practical problems. If the work affects a shared wall, boundary, extension, loft conversion, basement, underpinning, or excavation near a neighbour’s structure, the Party Wall etc. Act 1996 may apply. Starting without notice can lead to an injunction, delays, neighbour disputes, and liability for damage. If work has already started, the safest next step is to pause the notifiable work, appoint a party wall surveyor, document the property’s condition, and speak to the neighbour. Retrospective agreements can help, but they cannot fully replace the protection of doing the process properly before work begins.