Which ward in Harrow has the highest planning approval rate?

Marlborough at 80.7% based on 1,261 decisions.

Which ward in Harrow has the lowest planning approval rate?

Wealdstone North at 69.5% based on 334 decisions.

How much do planning approval rates vary across Harrow?

There is a 11.2% gap between Marlborough and Wealdstone North. 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 11.2% — that's not noise, it's a fundamentally different planning environment depending on where you live.

22,078 real decisions·27 wards·Updated August 2026

All 27 wards ranked

#	Ward	Decisions	Approved	Refused	Rate
1	Marlborough	1,261	1,018	243	80.7%
2	Kenton West	867	699	168	80.6%
3	Hatch End	1,142	908	234	79.5%
4	Headstone	540	427	113	79.1%
5	North Harrow	450	351	99	78.0%
6	Kenton East	834	649	185	77.8%
7	Pinner South	1,369	1,064	305	77.7%
8	Harrow on the Hill	1,068	826	242	77.3%
9	Queensbury	497	384	113	77.3%
10	West Harrow	703	543	160	77.2%
11	Pinner	1,396	1,069	327	76.6%
12	Greenhill	1,060	808	252	76.2%
13	Centenary	486	369	117	75.9%
14	Headstone North	552	416	136	75.4%
15	Stanmore	598	450	148	75.3%
16	Rayners Lane	800	599	201	74.9%
17	Belmont	991	737	254	74.4%
18	Canons	1,033	766	267	74.2%
19	Roxeth	1,038	767	271	73.9%
20	Headstone South	531	391	140	73.6%
21	Harrow Weald	1,155	848	307	73.4%
22	Stanmore Park	628	460	168	73.2%
23	Roxbourne	601	430	171	71.5%
24	Wealdstone South	281	198	83	70.5%
25	Wealdstone	497	349	148	70.2%
26	Edgware	924	642	282	69.5%
27	Wealdstone North	334	232	102	69.5%

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 Wealdstone North.
Check your postcode to see what actually happens near your address.

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What the data tells us

A 11.2% gap separates the best and worst wards. Marlborough approves 80.7% of applications while Wealdstone North approves just 69.5%. 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

5,321 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 3,770,000+ real decisions

More Harrow planning data

Nearby councils ward breakdowns

Methodology: Covers 22,078 planning decisions in Harrow, January 2020 to August 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 →