Which ward in Harrow has the highest planning approval rate?

Marlborough at 80.6% based on 1,272 decisions.

Which ward in Harrow has the lowest planning approval rate?

Edgware at 69.9% based on 943 decisions.

How much do planning approval rates vary across Harrow?

There is a 10.7% gap between Marlborough and Edgware. Your postcode significantly affects outcomes.

Planning Approval Rates by Ward in Harrow

Planning outcomes in Harrow are highly localised. The gap between the most and least permissive wards is 10.7% — that's not noise, it's a fundamentally different planning environment depending on where you live.

15,647 real decisions·27 wards·Updated September 2026

All 27 wards ranked

#	Ward	Decisions	Approved	Refused	Rate
1	Marlborough	1,272	1,025	247	80.6%
2	Kenton West	877	705	172	80.4%
3	Hatch End	1,165	928	237	79.7%
4	Headstone	555	439	116	79.1%
5	North Harrow	470	366	104	77.9%
6	Kenton East	847	660	187	77.9%
7	Pinner South	1,397	1,086	311	77.7%
8	West Harrow	718	557	161	77.6%
9	Harrow on the Hill	1,091	846	245	77.5%
10	Queensbury	497	384	113	77.3%
11	Pinner	1,419	1,085	334	76.5%
12	Greenhill	1,081	820	261	75.9%
13	Centenary	498	378	120	75.9%
14	Stanmore	621	469	152	75.5%
15	Headstone North	552	416	136	75.4%
16	Rayners Lane	814	611	203	75.1%
17	Belmont	999	744	255	74.5%
18	Canons	1,050	776	274	73.9%
19	Roxeth	1,049	774	275	73.8%
20	Headstone South	531	391	140	73.6%
21	Harrow Weald	1,180	866	314	73.4%
22	Stanmore Park	628	460	168	73.2%
23	Roxbourne	604	432	172	71.5%
24	Wealdstone South	290	206	84	71.0%
25	Wealdstone	497	349	148	70.2%
26	Wealdstone North	345	242	103	70.1%
27	Edgware	943	659	284	69.9%

See how this applies to your postcode →

These are council averages. Your property is specific.

An extension might sail through in Marlborough but face serious resistance in Edgware.
Check your postcode to see what actually happens near your address.

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What the data tells us

A 10.7% gap separates the best and worst wards. Marlborough approves 80.6% of applications while Edgware approves just 69.9%. That's a fundamentally different planning environment.

High volume doesn't mean high approval. Some of the busiest wards aren't the most permissive. The number of applications a ward processes tells you nothing about how likely yours is to succeed.

Ward averages are a starting point, not a guarantee. Your specific outcome depends on your property, your neighbours, your proposal type and the comparable decisions near your address.

Before you spend £5,000+ on architects and drawings

4,204 planning applications in Harrow have been refused since 2020. Many of those homeowners had already paid for drawings and application fees. A free, property-specific report shows you what gets approved — and what gets refused — near your property.

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Free · Property report emailed in minutes · Based on 3,840,000+ real decisions

More Harrow planning data

Nearby councils ward breakdowns

Methodology: Covers 15,647 planning decisions in Harrow, January 2020 to September 2026. Approval rate = approved / (approved + refused). Pending, withdrawn and invalid excluded. Ward boundaries reflect current electoral divisions. Data from Harrow Council's public planning portal. Full methodology →