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Reviews · Harrow

What Harrow clients say

Harrow approved 77.8% of 2,856 householder applications, 2023 Q2 to 2026 Q1. MCIAT-chartered.

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An architectural technologist checking a printed set of house drawings, marking a proposed elevation in red — what harrow clients say in London
Every set is checked line by line against the validation checklist before it leaves the office.

Where in Harrow does a drawing package actually get determined?

Every Harrow postcode district we draw in, the stock that dominates it and the authority that validates a drawing package there. Harrow fees below are the statutory England rates for 2026, not drawing package estimates.

PostcodeAreaDominant stockWhat it means for a drawing package
HA1Harrow / Harrow on the HillGeorgian and Victorian houses, listed buildingsHarrow / Harrow on the Hill sits wholly inside HA1, so Harrow Council validates every drawing package submitted from an HA1 address.
HA2North Harrow / South Harrow1930s semi-detachedA drawing 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.
HA3Harrow Weald / Kenton / Wealdstone1930s semi-detachedHA3 covers Harrow Weald / Kenton / Wealdstone only; Harrow Council handles the drawing package.
HA7Stanmore1930s semi-detached, Edwardian villasA drawing package at an HA7 address in Stanmore is determined by Harrow Council under its own Local Plan policies for Stanmore.
HA5Pinner / EastcoteTudor fragments, Edwardian villas, 1930s semi-detachedA drawing package 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 drawing package 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 drawing package can achieve at that address.

What local planning policy applies to a drawing package in Harrow?

How designation changes a Harrow drawing package: Harrow Council maintains 29 conservation areas, including Harrow on the Hill, Pinner Village, Stanmore. Inside any of them a Harrow drawing package 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 Weald sets the tone for Harrow casework.

Article 4 and your Harrow drawing package: Harrow Council has made no borough-wide direction, so permitted development for a drawing package in Harrow generally survives outside Harrow conservation areas and listed curtilages. A Lawful Development Certificate at £274 is how a HA1 owner records that a drawing package was lawful.

The building fabric around 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. Outer north-west London suburban; Harrow on the Hill has exceptionally strict heritage controls; rest of borough permissive. A drawing package in Harrow is scoped against that stock first.

What happens if a Harrow property sits on a boundary?

Sources for this Harrow drawing 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.

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What Harrow clients say in London — a London terraced street of the type we survey
A london terraced street of the type we survey — what harrow clients say in London.

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