No — your neighbour cannot refuse a party wall agreement in a way that blocks lawful work. Refusing consent (called “dissent”) doesn't stop your project; it simply triggers the Party Wall Act's dispute process, in which surveyors — not your neighbour — decide how the work proceeds. Here's exactly what happens, how long it takes, and what refusal can and cannot do.
The three ways a neighbour can respond to your notice
Once you serve a valid party wall notice, your neighbour has 14 days and three options. Consent in writing — work can start (record a schedule of condition first). Dissent and appoint a surveyor — either their own, or a shared “Agreed Surveyor”. Silence — after 14 days, silence counts as dissent automatically. Notice that none of these options is “veto”.
What dissent actually triggers
A dissent creates a formal “dispute” under section 10 of the Party Wall Act 1996 — which sounds worse than it is. Surveyors are appointed, they inspect and record the neighbouring property's condition, and they negotiate a party wall award: a document setting working hours, methods, protections and access. The award authorises your work. Your neighbour's role in blocking it ends there — an award can be appealed to the county court within 14 days, but only on genuine grounds, and appeals against properly made awards are rare and risky for the appellant.
How much delay can refusal really cause?
Realistically, dissent adds 2–6 weeks: surveyor appointments, a condition inspection, and award negotiation. A hostile neighbour who refuses to appoint a surveyor at all cannot stall you either — after a further notice, the Act lets a surveyor be appointed on their behalf, and the process continues. The Act was designed precisely so that one unhappy neighbour cannot freeze a lawful project indefinitely.
Who pays when a neighbour dissents?
You do — the building owner pays for both surveyors in almost all cases, including your neighbour's. That feels unfair but has logic: you're the one changing the shared structure. Fees must be reasonable and are fixed in the award; see our party wall agreement cost guide for 2026 figures, and our guide to who pays for a party wall surveyor.
What refusal cannot do
It cannot stop notifiable work that complies with the Act. It cannot force you to redesign your project (though the award may set protective conditions). It cannot run up unlimited surveyor fees — costs must be reasonable and disputes over them go to the Third Surveyor. And it cannot be used to extract payment for consent: compensation under the Act is for actual loss or damage, not for goodwill.
What to do right now
If your neighbour is refusing or has gone silent: don't argue over the fence — let the statutory process do its job. Our RICS party wall surveyors handle dissents every week, and where both sides agree to a single Agreed Surveyor, most matters conclude within a month.
Neighbour dissenting or gone silent? We resolve most party wall disputes in 2–4 weeks — get a fixed quote or call 0204 579 8270.
