Party wall awards and the development programme
Party wall procedure runs on its own statutory clock, independent of planning permission. Notice periods, the dissent timetable, the award and what it does to your start date.
Party wall procedure runs on statutory timetables that have nothing to do with your planning permission, and on a rear extension it is frequently the thing that decides your earliest start date. A party structure notice gives the neighbour two months. A notice for excavation near their foundations gives one month. If they dissent, which they do simply by not replying within 14 days, you are into the surveyor appointment and award process, and the party wall award cost and programme effect lands on top of everything else.
The Party Wall etc. Act 1996 is not optional and it is not a planning matter. Councils do not check it and will grant permission for work that cannot lawfully start without it.
What the Act covers and when
Three situations trigger it on a typical domestic project.
Building a new wall on or at the line of junction between two properties, which is section 1.
Work to an existing party structure: cutting into a party wall for a beam, raising it, underpinning it, inserting a flashing, removing a chimney breast. That is section 2.
Excavating within three metres of a neighbouring structure to a depth lower than their foundations, or within six metres where your excavation would cut a line drawn down at 45 degrees from the bottom of their foundations. That is section 6.
The third catches people who assumed the Act was only about shared walls. A single storey extension with trench foundations next to a Victorian terrace with shallow footings almost always engages section 6, even where the extension is a metre from the boundary.
Notice periods and the dissent timetable
The periods are fixed by the Act and cannot be shortened unless the neighbour agrees in writing.
| Work | Notice required | Notice period |
|---|---|---|
| New wall at the line of junction, section 1 | Line of junction notice | One month |
| Work to a party structure, section 2 | Party structure notice | Two months |
| Excavation near a neighbouring structure, section 6 | Notice of adjacent excavation | One month |
The adjoining owner then has 14 days to respond. Consent in writing and the matter ends there, subject to your common law duties and any agreed record of condition. Dissent, or say nothing at all for 14 days, and a dispute is deemed to have arisen, which brings the dispute resolution procedure into play.
Silence is the usual response. Most neighbours are not being difficult; they simply do not know what to do with a formal notice and put it on the kitchen table. Plan for deemed dissent rather than hoping for consent.
One further timing trap. A party structure notice ceases to have effect if the work does not start within 12 months of the notice and proceed with due diligence. Serving early to get the clock running, then losing a winter to a funding delay, means serving again.
Agreed surveyor or two surveyors
Once a dispute is deemed to have arisen, section 10 gives two routes.
Both owners agree on a single surveyor, the agreed surveyor, who acts impartially for both. This is faster and costs less, and it is the right outcome on a straightforward extension.
Each owner appoints their own surveyor, and those two select a third surveyor who can be called on if they cannot agree. Three surveyors is where costs multiply, and it is sometimes unavoidable where the neighbour has lost confidence.
The surveyors are not advocates. A surveyor appointed by the adjoining owner still has a statutory duty to act impartially in resolving the dispute, which is a point worth explaining to a neighbour who thinks they are hiring a champion.
Allow four to ten weeks from appointment to award on a normal domestic case: inspection of both properties, agreement on the schedule of condition, drafting, and exchange between surveyors. Longer where access to the neighbour's property is slow to arrange.
The award and what it settles
The award is the document that authorises the work. It records the right to carry out the works described, the time and manner of carrying them out, and the allocation of costs. It usually attaches the schedule of condition and the drawings.
Either owner may appeal to the county court within 14 days of the award being served. Appeals are uncommon and expensive, and the practical significance of the 14 days is that you should not start the work the day the award arrives if there is any sign of discontent.
Read the award before relying on it. Awards routinely restrict working hours, specify access arrangements, require particular temporary support, and occasionally require the work to be done in a sequence the builder has not priced. A structural survey and the engineer's design should be settled before the award is drafted rather than after, because changing the method afterwards means an addendum award.
Schedules of condition
A schedule of condition is a dated photographic and written record of the neighbour's property before work starts. It is not required by the Act and it is the single most useful document in the process.
Without one, any crack the neighbour notices during the works becomes your problem by default, because there is nothing to show it was there before. With one, the conversation takes ten minutes.
Have it prepared by the surveyor, make it detailed on the elevations and rooms nearest the work, and include the garden surfaces, boundary walls and any outbuilding. Agree it in writing. One honest limitation: schedules record visible condition at a point in time and cannot rule out pre-existing hidden defects, so they reduce disputes rather than eliminating them.
Who pays
The general position is that the building owner, meaning you, pays the costs of the notices, the surveyors and the award, because the works are for your benefit. The award determines costs and can allocate them differently where the adjoining owner has acted unreasonably or where work is partly for their benefit.
Budget for it as a line in its own right alongside the planning application fee and the building control charge. The charges that run alongside the planning fee are separate payments on separate scales, and party wall fees are separate again. Ask any surveyor for a written fee basis before appointing them, because hourly rates and fixed fees produce very different totals on a case that drags.
An adjoining owner may also request security for expenses under section 12, requiring you to put money aside before work affecting their property begins. It is not commonly invoked on domestic jobs, and it exists.
Effect on the start date
Work backwards from the date you want to start on site.
- Fix the design and the structural method, because notices have to describe the work accurately.
- Serve notices, allowing one or two months depending on the section.
- Allow 14 days for a response, and assume dissent.
- Allow four to ten weeks for appointment, inspection and award.
- Allow 14 days after the award before starting, to let the appeal period pass.
On a section 2 case with deemed dissent that is realistically three to five months from serving notice to a lawful start. Run it in parallel with the planning application rather than after the decision, since the notices describe construction rather than planning matters and do not depend on the permission.
The thing to avoid is serving notice after the builder has been booked. That is how people end up starting work without an award, which gives the neighbour an injunction route and leaves you with no protection on damage claims.
This is general guidance, not legal advice; take advice from a party wall surveyor or a solicitor before relying on it. PlanScope provides AI-assisted draft reports for planning applications, not party wall documents. Reports should be reviewed before submission. We do not guarantee planning approval. See PlanScope pricing for the cost of the planning documents, and the full report index for what each covers.
Frequently asked questions
How much notice do I have to give a neighbour?
One month for a new wall at the line of junction and one month for excavation near their structure. Two months for work to a party structure, such as cutting in a beam or removing a chimney breast. The periods are fixed by the Party Wall etc. Act 1996 and can only be shortened if the neighbour agrees in writing.
What happens if my neighbour ignores the notice?
After 14 days a dispute is deemed to have arisen, which brings the dispute resolution procedure into play exactly as if they had objected. Silence is the most common response, so plan for it rather than hoping for written consent. The next step is appointing either an agreed surveyor or one surveyor each.
Does excavating near a neighbour count even if I am not touching their wall?
Yes. Section 6 applies where you excavate within three metres of a neighbouring structure to a depth below their foundations, or within six metres where your excavation would cut a line drawn down at 45 degrees from the bottom of their foundations. Shallow Victorian footings make this common on terraced streets.
Who pays the party wall surveyors?
Normally the building owner carrying out the works, because the work is for their benefit. The award determines costs and can allocate them differently, for example where the adjoining owner has behaved unreasonably or where some of the work benefits them. Ask for a written fee basis before appointing any surveyor.
How long does the whole process take?
On a party structure case where the neighbour does not reply, allow two months for the notice, 14 days for the response period, four to ten weeks for appointment, inspection and the award, then 14 days for the appeal period to pass. Three to five months from notice to a lawful start is realistic.
Sources and further reading
This article is general guidance about the planning system in England and, where stated, the rest of the UK. It is not legal or professional advice. Check your local planning authority’s validation requirements and take professional advice for your specific site.