Party Wall Notices in London
Every party wall matter starts with a notice — and an invalid notice can unravel months of progress. Wimbledon Surveyors drafts and serves valid party wall notices for building owners across London, and advises adjoining owners on how to respond when one lands on the doormat. Get notice advice.
Which Notice Do You Need?
Section 1 covers new walls at the boundary, Section 3 works to the party wall itself, and Section 6 excavation within three or six metres. Many projects need more than one — we identify exactly which apply.
Serving a Valid Notice
Notices must contain the right details, drawings and timescales, and be served on every legal owner next door. We prepare and serve them correctly so your programme isn’t derailed by a technicality.
Responding as an Adjoining Owner
You can consent, dissent, or dissent and appoint a surveyor. Each route has consequences for protection and cost — our guide to the Party Wall Act explains them, and we advise on your specific case.
After the Notice: Awards
Where an adjoining owner dissents, surveyors prepare a party wall award with a schedule of condition protecting both sides. See our full party wall services.
Timing Matters
Notices require one or two months’ lead time depending on the works. Serve early and your project keeps moving. Request a notice quote today.
Serving a Party Wall Notice: What the Party Wall etc. Act 1996 Requires
If you are planning building work on or near a shared wall or boundary in London or Essex, the Party Wall etc. Act 1996 almost certainly applies. Before starting a loft conversion, rear extension, basement excavation, chimney breast removal or any structural alteration to a party wall, you must serve a valid party wall notice on every adjoining owner. Our RICS-regulated party wall surveyors draft and serve legally compliant notices, manage responses and, where needed, prepare the party wall award that lets your project proceed without dispute.
The Three Types of Party Wall Notice
- Party Structure Notice (Section 3) — for works directly to a shared wall, such as cutting in beams for a loft conversion, removing a chimney breast, underpinning or raising the wall. Minimum two months’ notice.
- Line of Junction Notice (Section 1) — for building a new wall up to or astride the boundary line, typically for extensions. Minimum one month’s notice.
- Notice of Adjacent Excavation (Section 6) — for digging within three metres (or six metres in some cases) of a neighbouring building and below its foundations, common with basements and new footings. Minimum one month’s notice.
Why a Correctly Drafted Notice Matters
An invalid notice is one of the most common causes of party wall disputes and project delays. Notices that misname the owners, omit required drawings, quote the wrong section of the Act or give insufficient notice periods can be challenged, forcing you to restart the statutory clock. Courts have also refused to protect building owners who started notifiable works without serving notice at all — leaving them exposed to injunctions and claims for damage. Having a chartered surveyor prepare your notices costs little and removes that risk.
What Happens After the Notice Is Served?
Your neighbour has 14 days to respond. They can consent in writing, in which case works may proceed (we still recommend a schedule of condition to protect both parties). They can dissent and appoint their own surveyor, or dissent and agree to use a single “agreed surveyor” — usually the quickest and cheapest route. If they do not respond within 14 days, a dispute is deemed to have arisen and surveyors must be appointed under Section 10 of the Act to produce a party wall award.
Party Wall Notice Costs and Timescales
Serving notices is the inexpensive part of the process — we offer fixed fees for drafting and serving notices on any number of adjoining owners, with most instructions turned around within one to two working days. Where neighbours consent, that may be the only cost you incur. If a dispute arises, the building owner normally pays the reasonable fees of both surveyors, which is why serving clear, correct notices early — ideally two to three months before you want to start on site — is the single best way to keep your party wall costs down.
Related Services
We provide the full range of party wall services across London and Essex, including party wall awards, schedules of condition, and advice for adjoining owners who have received a notice. If your project also needs structural input — for example beam design for a loft conversion — our structural calculations and load-bearing wall removal teams can work alongside the party wall process so nothing holds up your build.
Frequently Asked Questions
Almost always, yes. Inserting steel beams into the party wall, raising it or cutting in new supports are notifiable works under Section 2 of the Party Wall etc. Act 1996, requiring a Party Structure Notice with at least two months’ notice to each adjoining owner.
We serve party wall notices for a low fixed fee per project, covering all adjoining owners. If neighbours consent, this is usually the only party wall cost you will pay. If they dissent, the building owner normally also covers the surveyors’ reasonable fees for preparing the award.
You can, but errors in DIY notices — wrong owner names, missing plans, incorrect notice periods — frequently invalidate them and restart the statutory timescales. A surveyor-drafted notice is inexpensive and removes the risk of delay or legal challenge.
If an adjoining owner does not respond within 14 days, a dispute is deemed to arise under the Act. Surveyors are then appointed to prepare a party wall award, and works can proceed once the award is served — your project is not blocked by silence.
A notice lapses if the works it describes have not begun within 12 months of service. Start on site within that window — or we can re-serve the notice if your programme slips.