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Blog
Blog
2025-11-12
So, you’re planning that dream loft conversion, rear extension, or basement project. Exciting times, until your neighbour objects and your build grinds to a halt.
If you’ve started construction without a Party Wall Agreement, you may have just stepped into serious legal territory. Under the Party Wall etc. Act 1996, it’s not optional and ignoring it can cost you thousands in delays, disputes, and even court orders.
Book a free consultation with a Party Wall Surveyor in London before your project begins.
These aren’t rare occurrences; we see them all the time across London. Speak to our expert Party Wall Surveyors today to avoid these pitfalls.
If you’ve already started work, don’t panic; retrospective agreements are possible, but they’re slower and more expensive.
Contact Rosecrest Group now for urgent advice.
A Party Wall Notice is a formal document served to your neighbour before work begins. It’s a legal requirement, not just good manners.
Step 1: Serve the Notice — Your surveyor serves written notice one to two months before construction begins.
Step 2: Neighbour Response — They have 14 days to either Consent or Dissent, triggering the Party Wall Award process.
Step 3: Party Wall Award — This legal document sets out project details, access rights, and protective measures.
Find out how our Party Wall Awards protect your build.
Typically, the building owner pays all notice and surveyor fees. Both surveyors’ costs apply if separate surveyors are appointed. Choosing an Agreed Surveyor can reduce expenses.
Typical Costs:
Most disputes are resolved through professional negotiation and expert inspection, not court battles.
Our RICS-accredited surveyors settle issues quickly and fairly.
Loft Conversions — when steel beams rest on a shared wall.
Extensions — when building against or within 3m of a boundary.
Basements — whenever excavation affects nearby foundations.
Property Transactions — missing Party Wall Agreements can delay sales and scare off buyers.
Download our free Party Wall checklist to see if your project qualifies.
Rosecrest Group is a RICS-accredited surveying firm specialising in Party Wall Services across London and the Home Counties.
We offer:
Explore our Party Wall services or contact us for advice.
Final Thoughts: Protect Your Project and Your Peace of Mind
The Party Wall Act 1996 isn’t an obstacle, it’s your safeguard. Handled correctly, it keeps your build compliant, your neighbours happy, and your investment secure.
Book your free consultation today and let Rosecrest Group handle your Party Wall process from start to finish