A case officer in seven cases out of eight, and a committee in the other. Harrow delegated 87.3% of its decisions, the lowest rate of the 33 London boroughs against 97.0% across the capital, and approved 77.8% of the householder applications it decided.
| Measure | Harrow | London |
|---|---|---|
| Decisions made under delegated powers | 87.3% | 97.0% |
| Householder approval rate | 77.8% | 83.0% |
| Householder decisions made | 2,856 | 77,680 |
| Decided inside eight weeks | 91.0% | — |
| Larger-extension prior approvals granted | 62 | 19.1% of those determined |
| Planning drawing package | from £840 | our fixed fee |
| Householder planning application fee | £548 | statutory, England 2026 |
Sources: decision figures from MHCLG District Planning Application Statistics (PS1 and PS2), twelve quarters to March 2026; the statutory fee from the Fees for Applications Regulations 2012 as amended, 2026 rate; the package fee is our own published fixed fee. A committee decision adds weeks and puts the drawings in front of councillors rather than a case officer, which is the practical reason a Harrow scheme benefits from a clearer set.
A planning permission drawings 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.


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.
A chartered technologist visits and laser-measures every room. Typically 60–90 minutes on site.
Drafted in Revit or AutoCAD at 1:100 or 1:50. Fully annotated and council-ready.
Unlimited revisions until you approve. Shadow studies for committee-sensitive applications.
Site location plan, block plan, Design & Access Statement where required.
We lodge the application with Harrow Council and pay statutory fees directly.
Every officer query, consultation response and amendment handled through to determination.

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 planning drawing set there. Harrow fees below are the statutory England rates for 2026, not planning drawing set estimates.
| Postcode | Area | Dominant stock | What it means for a planning drawing set |
|---|---|---|---|
| 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 planning drawing set submitted from an HA1 address. |
| HA2 | North Harrow / South Harrow | 1930s semi-detached | HA2 covers North Harrow / South Harrow only; Harrow Council handles the planning drawing set, and North Harrow / South Harrow case officers apply the HA2 conservation-area map. |
| HA3 | Harrow Weald / Kenton / Wealdstone | 1930s semi-detached | HA3 covers Harrow Weald / Kenton / Wealdstone only; Harrow Council handles the planning drawing set, and Harrow Weald / Kenton / Wealdstone case officers apply the HA3 conservation-area map. |
| HA7 | Stanmore | 1930s semi-detached, Edwardian villas | Stanmore sits wholly inside HA7, so Harrow Council validates every planning drawing set submitted from an HA7 address. |
| 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 planning drawing set before submitting HA5 drawings. |
Roof pitch, wall build-up and plot depth change every few Harrow streets, and each one changes what a planning drawing set can achieve at that address.
Conservation areas covering Harrow: Harrow Council runs 29, and Pinner Village, Stanmore, Harrow Weald are the ones Harrow owners meet most. A planning drawing set 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 planning drawing set is judged on the street elevation first.
Harrow permitted development status: there is no borough-wide direction from Harrow Council, so a planning drawing set 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 planning drawing set route in Harrow — construction, not postcode, sets what is achievable. Harrow Council charges £548 for a householder application and has 8 weeks to determine it.
Sources for this Harrow planning drawing set 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.
Of 310 appeals on new-dwelling schemes decided in Harrow over the window covering appeals decided 2016-2026, Harrow sat close to the London norm, with 23.5% of appeals succeeding against 22.4% city-wide. 73 were allowed and 235 dismissed, with 2 split. Schemes creating a new home - conversions, infills, small developments - carry the most risk, and these 310 Harrow appeals are only the ones refused or left undetermined, never the approvals.
Half of those Harrow appeals took more than 111 days to decide from the day the appeal started — time added on top of the council's own determination period, which is the argument for getting the application right first. 97.4% were decided by written representations rather than a hearing or inquiry, meaning the written case and the drawings were the whole of the evidence.
310 appeals on new-dwelling schemes decided in Harrow. Source: Planning Inspectorate casework, OGL v3.0.
Direct answers to the questions Harrow homeowners ask every week about planning permission drawings.
Start a free quote →Our Harrow planning fee is fixed before we start and depends on the route — a householder application is the simplest, while major works, change of use and flat conversions carry more drawings and supporting documents. Harrow Council also charges its own statutory application fee on top, set nationally. See our fees for current figures.
Once validated, Harrow Council aims to decide householder applications within 8 weeks and major applications within 13 weeks — consistent with statutory targets. Our typical end-to-end timeline from instruction to submission is 3–4 weeks.
Harrow does not currently have a borough-wide Article 4 Direction for residential extensions or HMO conversions. Most householder permitted development rights apply normally in Harrow — though conservation areas and listed buildings still restrict PD. We confirm at the free site survey.
Harrow has 29 designated conservation areas, including Harrow on the Hill, Pinner Village, Stanmore and others. Planning applications within conservation areas require additional heritage consideration and often a Heritage Statement.
For most householder work in Harrow, a chartered architectural technologist delivers the same planning outcomes as a dedicated consultant — usually at lower cost. Our MCIAT-chartered team handles drawings, submission and agent liaison as one package.
We cover all Harrow postcodes — HA1, HA2, HA3, HA5, HA7, HA8 — as well as the immediately adjacent boroughs. Survey appointments are available within 3 working days across Harrow.
Harrow's 1930s semi-detached dominates housing stock and 29 conservation areas mean that design quality matters. Harrow Council officers are experienced reviewers; well-drawn, consistent applications are processed faster than revisions-heavy ones.
Yes — Planning Inspectorate appeals are available as a right within 12 weeks of refusal from Harrow Council. Written representations take 16–20 weeks; hearings 24–32 weeks. We prepare appeal statements and revised drawings for cases where refusal was on design or policy grounds.

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