End-to-end Party Wall Act 1996 service for Harrow — Section 1, 3 and 6 notices, schedule of condition surveys, party wall award coordination. We handle the process so your Harrow build starts without neighbour disputes.
A party wall services package in Harrow, where the stock is largely 1930s semi-detached dominates; Edwardian villas in Harrow on the Hill and Pinner; Metropolitan Green Belt in Stanmore and Harrow Weald; post-war flats around Harrow Central, is the full measured-survey-to-submission drawing set London Borough of Harrow needs in order to determine an application: existing and proposed plans, elevations and sections at 1:100 and 1:50, a location and site plan, and the supporting statements the case officer asks for.
Prepared and reviewed by the chartered technologist team at Architectural Drawings London — MCIAT chartered, £2m PI insured.Last reviewed 2026-08-03.


End-to-end Party Wall Act 1996 service for Harrow — Section 1, 3 and 6 notices, schedule of condition surveys, party wall award coordination. We handle the process so your Harrow build starts without neighbour disputes.
Housing stock in Harrow: 1930s semi-detached dominates; Edwardian villas in Harrow on the Hill and Pinner; Metropolitan Green Belt in Stanmore and Harrow Weald; post-war flats around Harrow Central.
Character: Outer north-west London suburban; Harrow on the Hill has exceptionally strict heritage controls; rest of borough permissive.
We review your Harrow project and confirm which Party Wall Act sections apply — Section 1 (new wall on boundary), Section 3 (adjacent excavation) or Section 6 (line of junction).
Legally-compliant notices prepared and served on all adjoining owners, with 14-day or 1-month response periods tracked.
Photographic and written record of neighbouring properties before work starts — protects you and your Harrow neighbours from disputes.
Technical drawings showing the proposed works in relation to the party wall, foundations and adjoining structures — required by the Act.
If neighbours dissent, we coordinate the appointment of agreed surveyors or independent surveyors to prepare the Party Wall Award.
Liaison through the award process — method statements, temporary works, access arrangements — until the award is agreed and you can start on site.

Single planning or regs submission.
Planning + building regs + structural.
Listed, conservation, complex sites.
Move the controls for an indicative figure. It anchors your budget — it is not a quote. Every project is priced after a free survey.
Build costs are separate and quoted by your contractor. See our published fees.
Every Harrow postcode district we draw in, the stock that dominates it and the authority that validates a party wall package there. Harrow fees below are the statutory England rates for 2026, not party wall package estimates.
| Postcode | Area | Dominant stock | What it means for a party wall package |
|---|---|---|---|
| HA1 | Harrow / Harrow on the Hill | Georgian and Victorian houses, listed buildings | HA1 covers Harrow / Harrow on the Hill only; Harrow Council handles the party wall package, and Harrow / Harrow on the Hill case officers apply the HA1 conservation-area map. |
| HA2 | North Harrow / South Harrow | 1930s semi-detached | A party wall package at an HA2 address in North Harrow / South Harrow is determined by Harrow Council under its own Local Plan policies for North Harrow / South Harrow. |
| HA3 | Harrow Weald / Kenton / Wealdstone | 1930s semi-detached | HA3 covers Harrow Weald / Kenton / Wealdstone only; Harrow Council handles the party wall package, and Harrow Weald / Kenton / Wealdstone case officers apply the HA3 conservation-area map. |
| HA7 | Stanmore | 1930s semi-detached, Edwardian villas | A party wall package at an HA7 address in Stanmore is determined by Harrow Council under its own Local Plan policies for Stanmore. |
| HA5 | Pinner / Eastcote | Tudor fragments, Edwardian villas, 1930s semi-detached | HA5 straddles a boundary: Pinner / Eastcote addresses fall to Hillingdon Council or Harrow Council, so confirm which authority validates the party wall package before submitting HA5 drawings. |
Roof pitch, wall build-up and plot depth change every few Harrow streets, and each one changes what a party wall package can achieve at that address.
Conservation areas covering Harrow: Harrow Council runs 29, and Stanmore, Harrow Weald, Harrow on the Hill are the ones Harrow owners meet most. A party wall package inside a Harrow conservation area loses permitted development, so the Harrow submission is a householder application at £548 decided in 8 weeks — not a £249 prior approval decided in 6 weeks. In Stanmore a party wall package is judged on the street elevation first.
Harrow permitted development status: there is no borough-wide direction from Harrow Council, so a party wall package at a HA1 address is normally still permitted development. We certify that with a £274 Lawful Development Certificate rather than leaving a Harrow sale to argue it later.
What Harrow is built from: 1930s semi-detached dominates; Edwardian villas in Harrow on the Hill and Pinner; Metropolitan Green Belt in Stanmore and Harrow Weald; post-war flats around Harrow Central. Outer north-west London suburban; Harrow on the Hill has exceptionally strict heritage controls; rest of borough permissive. That mix decides the party wall package route in Harrow more than the postcode does, and it is what a Harrow Council case officer reads first. A householder application costs £548 paid to Harrow Council direct, with 8 weeks to a decision once validated.
Sources for this Harrow party wall package page: borough policies maps and conservation-area registers (2025–26), Royal Mail postcode district boundaries, the Town and Country Planning (Fees for Applications) (England) Regulations, the Town and Country Planning (General Permitted Development) (England) Order 2015 as amended, and the Party Wall etc. Act 1996.
Direct answers to the questions Harrow homeowners ask every week about party wall services.
Start a free quote →You need Party Wall Act notices if your Harrow project involves: building on or astride a boundary (Section 1), cutting into a party wall or party structure (Section 3), or excavating within 3m/6m of an adjoining property's foundations (Section 6). Most loft conversions, extensions and basement digs in Harrow trigger at least one section.
If your neighbour consents, that is the whole cost. If they dissent, surveyors must be appointed for the Award and their fees are additional, per neighbour. Notices are included in our Complete architectural packages at no extra charge. See our fees.
If all adjoining owners in Harrow consent: 14 days (Section 3/6 notice) or 1 month (Section 1 notice). If they dissent and surveyors must be appointed, allow 6–8 weeks for the Award. We serve notices as early as possible so the process runs in parallel with your planning application.
No — starting notifiable works in Harrow before serving valid notices or obtaining a Party Wall Award is a breach of the Party Wall Act 1996. It can result in injunctions, damages and loss of your statutory protections. We ensure notices are served at the right time so your build timeline is not delayed.
If an adjoining owner in Harrow does not respond within 14 days, the Act deems them to have dissented. This triggers the surveyor appointment process — you appoint a surveyor, they can appoint their own (at your cost) or you can agree on a single 'agreed surveyor'. We manage this process and keep it moving.

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