Which Harrow postcodes does this conservation area application service cover?
Every Harrow postcode district we draw in, the stock that dominates
it and the authority that validates a conservation area application there. Harrow fees below are the
statutory England rates for 2026, not conservation area application estimates.
| Postcode | Area | Dominant stock | What it means for a conservation area application |
|---|
| HA1 | Harrow / Harrow on the Hill | Georgian and Victorian houses, listed buildings | Harrow / Harrow on the Hill sits wholly inside HA1, so Harrow Council validates every conservation area application submitted from an HA1 address. |
| HA2 | North Harrow / South Harrow | 1930s semi-detached | HA2 covers North Harrow / South Harrow only; Harrow Council handles the conservation area application. |
| HA3 | Harrow Weald / Kenton / Wealdstone | 1930s semi-detached | A conservation area application at an HA3 address in Harrow Weald / Kenton / Wealdstone is determined by Harrow Council under its own Local Plan policies for Harrow Weald / Kenton / Wealdstone. |
| HA7 | Stanmore | 1930s semi-detached, Edwardian villas | HA7 covers Stanmore only; Harrow Council handles the conservation area application. |
| HA5 | Pinner / Eastcote | Tudor fragments, Edwardian villas, 1930s semi-detached | A conservation area application in Pinner / Eastcote may land with Hillingdon Council or Harrow Council — HA5 crosses the boundary, and the HA5 policies map decides it street by street. |
How does a conservation area application differ street by street across Harrow?
Roof pitch, wall build-up and plot depth change every few Harrow
streets, and each one changes what a conservation area application can achieve at that address.
- Harrow Weald (HA3) — conservation area application work in Harrow Weald means 1930s semi-detached. Harrow Weald is 1930s semi-detached, Green Belt. On these 1930s semis the prior approval route often replaces a full application throughout HA3. Harrow Council decides the Harrow Weald application, and Harrow Weald Common anchors the Harrow Weald location plan.
- Kenton (HA3) — a conservation area application in Kenton starts from 1930s semi-detached, and Kenton reads as 1930s semi-detached. On these 1930s semis the prior approval route often replaces a full application in HA3. Harrow Council assesses Kenton conservation area applications against its own Kenton character guidance, and the location plan we draw for Kenton references Kenton station.
- Wealdstone (HA3) — conservation area application work in Wealdstone means 1930s semi-detached, post-war flats. Wealdstone is 1930s semi-detached, post-war. On these 1930s semis the prior approval route often replaces a full application throughout HA3. Harrow Council decides the Wealdstone application, and Wealdstone High Street anchors the Wealdstone location plan.
- North Harrow (HA2) — conservation area application work in North Harrow means 1930s semi-detached. North Harrow is 1930s semi-detached. On these 1930s semis the prior approval route often replaces a full application throughout HA2. Harrow Council decides the North Harrow application, and North Harrow Tube anchors the North Harrow location plan.
- South Harrow (HA2) — 1930s semi-detached defines South Harrow, where 1930s semi-detached set what a conservation area application can do. On these 1930s semis the prior approval route often replaces a full application across HA2. Any South Harrow conservation area application is validated by Harrow Council, with South Harrow Tube the usual South Harrow reference point on the site plan.
- Harrow on the Hill (HA1) — a conservation area application in Harrow on the Hill starts from georgian and victorian houses, listed buildings, and Harrow on the Hill reads as Georgian and Victorian conservation hilltop. Applications on Georgian stock here almost always need a heritage statement alongside the drawings in HA1. Harrow Council assesses Harrow on the Hill conservation area applications against its own Harrow on the Hill character guidance, and the location plan we draw for Harrow on the Hill references Harrow School.
- Pinner (HA5) — Tudor and 1930s village defines Pinner, where tudor fragments, edwardian villas, 1930s semi-detached set what a conservation area application can do. Edwardian houses here typically need the same householder set plus a roof plan where a dormer is proposed across HA5. Any Pinner conservation area application is validated by Harrow Council, with Pinner High Street the usual Pinner reference point on the site plan.
What local planning policy applies to a conservation area application in Harrow?
How designation changes a Harrow conservation area application: Harrow Council’s own list names 29 conservation areas, including Pinner Village, Stanmore, Harrow Weald. Inside any of them a Harrow conservation area application cannot rely on permitted development, and the route becomes a £548 householder application determined in 8 weeks rather than a £249 prior approval in 6 weeks. Harrow on the Hill sets the tone for Harrow casework.
Harrow permitted development status: there is no borough-wide direction from Harrow Council, so a conservation area application 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.
Harrow housing stock: 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. Read that before choosing a conservation area application route in Harrow — construction, not postcode, sets what is achievable.
Which neighbouring authorities border Harrow?
- Hillingdon — the Hillingdon boundary runs against Harrow, so a conservation area application a street from Harrow is decided by Hillingdon Council instead. Hillingdon runs 29 conservation areas across HA4 and its neighbours, which is why conservation area applications priced for Harrow are re-checked against Hillingdon policy whenever the Harrow address sits on that edge.
- Barnet — the Barnet boundary runs against Harrow, so a conservation area application a street from Harrow is decided by Barnet Council instead. Barnet runs 20 conservation areas across N2 and its neighbours, which is why conservation area applications priced for Harrow are re-checked against Barnet policy whenever the Harrow address sits on that edge.
- Brent — adjoining Harrow, with 22 conservation areas centred on NW2. A conservation area application on the far side of the Harrow line is determined by Brent Council, so the Harrow quote for conservation area applications is checked against Brent guidance before it is issued.
Sources for this Harrow conservation area application 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.
