66 Whitmore Road, West Harrow, Harrow, HA1 4AD Data via plota.co.uk

Approved PL/0864/26 - Certificate of Lawful Development Existing
Extensions & alterations
Council
Harrow 4.9/10
Date received
30 Mar 2026
Postcode
HA1 4AD
Type
Certificate of Lawful Development Existing

Description

Certificate of Lawful Development (Existing): Single storey rear extension; conversion of garage into habitable room; external alterations Data via plota.co.uk

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Last checked

Site constraints 2

Air quality management area: Harrow AQMA
The council has declared the area as failing an air quality objective.
Schemes that add traffic, parking or combustion plant are assessed against the area's action plan and may need an air quality assessment.
Council record ↗
Also on the record
Inside the Harrow built-up area.
Not affected
Outside flood zones 2 and 3 · Not green belt · No scheduled monument at the site

Checked on 11 September 2026. Historic England, the Environment Agency, Natural England and council datasets, Open Government Licence. A boundary can run through a site and the council holds the definitive record: confirm with the council before relying on this.

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Other new applications on this street

19 Aug 2026Pending

18 Whitmore Road, West Harrow, Harrow, HA1 4AB

Certificate Of Lawful Development (Proposed): Alterations and extension to roof ...

PL/1981/26
26 Jun 2026Approved

134 Whitmore Road, West Harrow, Harrow, HA1 4AQ

Single storey side to rear extension (Demolition of attached garage)

PL/1641/26
23 May 2026Approved

170 Whitmore Road, West Harrow, Harrow, HA1 4AQ

Single storey side to rear extension

PL/1126/26

Nearby new applications

11 Sept 2026Pending

28 Butler Road, West Harrow, Harrow, HA1 4DR

Single storey rear extension permitting internal changes to the ground floor fla...

PL/1373/26
5 Sept 2026Pending

93 Vaughan Road, West Harrow, Harrow, HA1 4EF

Certificate of Lawful Existing Development: Change of use form single dwelling (...

PL/2312/26
29 Aug 2026Pending

18 Dudley Gardens, Harrow, HA2 0DQ

Variation of condition 4 (Occupation numbers) attached to planning permission P/...

PL/2293/26
26 Aug 2026Pending

Old Pye House, West Street, Harrow, HA1 3EH

Details pursuant to Condition 4 part a (A full photographic report of the Listed...

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26 Aug 2026Pending

62, 62 Roxborough Park, Harrow, HA1 3AY

Details pursuant to Condition 5 (Fire Safety Statement) attached to planning per...

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19 Aug 2026Pending

18 Whitmore Road, West Harrow, Harrow, HA1 4AB

Certificate Of Lawful Development (Proposed): Alterations and extension to roof ...

PL/1981/26

Historical activity at this location

27 previous applications on record - archival context, not part of the live application.

This property

Previous applications at this address

2025
Certificate of Lawful Existing Development: Single storey side to rear extension; Externa…
PL/2932/25
2020 Withdrawn
CERTIFICATE OF LAWFUL DEVELOPMENT (PROPOSED): Single storey rear extension; alteration to…
P/2873/20
Within ~100m

Nearby activity

2024 Approved
62 Whitmore Road, West Harrow, Harrow, HA1 4AD
New roof, external walls and fenestration to rear conservatory; external alterations
PL/2478/24
2023 Approved
9 Treve Avenue, West Harrow, Harrow, HA1 4AL
Single storey rear extension: 6.00 metres deep, 3.00 metres maximum height and 2.90 metre…
P/1414/23/PRIOR
2023 Refused
9 Treve Avenue, West Harrow, Harrow, HA1 4AL
Single storey rear extension: 6.00 metres deep, 3.00 metres maximum height and 2.90 metre…
P/0044/23/PRIOR
2022 Approved
44 Whitmore Road, West Harrow, Harrow, HA1 4AD
Single storey rear extension; external alterations (part demolition of rear extension)
P/3624/22
2022 Approved
11 Treve Avenue, West Harrow, Harrow, HA1 4AL
Single storey rear extension: 6.00 metres deep, 3.70 metres maximum height and 3.00 metre…
P/1649/22/PRIOR
2021 Approved
50 Whitmore Road, West Harrow, Harrow, HA1 4AD
Single storey side to rear extension incorporating garage
P/1397/21
2020 Approved
50 Whitmore Road, West Harrow, Harrow, HA1 4AD
Single Storey Rear Extension: 6.00 metres deep, 3.20 metres maximum height, 3.00 metres h…
P/4606/20/PRIOR
2020 Approved
64 Whitmore Road, Harrow, HA1 4AD
Single storey side to rear extension (demolition of detached garage)
P/0261/20
2020 Approved
52 Whitmore Road, West Harrow, Harrow, HA1 4AD
Details pursuant to Conditions 6 (Flood Mitigation Measures), 7 (Surface Water Disposal/A…
P/1813/20
2020 Approved
54 Whitmore Road, Harrow, HA1 4AD
Single storey rear extension (demolition of conservatory)
P/0218/20
2019 Approved
52 Whitmore Road, West Harrow, Harrow, HA1 4AD
Single storey rear extension; part conversion of garage to habitable room; raised decking…
P/4090/19
2019 Refused
54 Whitmore Road, West Harrow, Harrow, HA1 4AD
Single storey rear extension (demolition of conservatory)
P/2319/19
2019 Refused
52 Whitmore Road, West Harrow, Harrow, HA1 4AD
Single storey rear extension; conversion of garage to habitable room; raised decking at r…
P/0912/19
2018 Approved
9 Treve Avenue, Harrow, HA1 4AL
Single storey rear extension conversion of existing garage to habitable space; external a…
P/1069/18
2018 Withdrawn
48 Whitmore Road, West Harrow, Harrow, HA1 4AD
Single storey rear extension
P/0785/18
2018 Approved
13 Treve Avenue, West Harrow, Harrow, HA1 4AL
Single Storey Rear Extension: extending 4 metres beyond the original rear wall, 3 metres…
P/0525/18/PRIOR
2017 Approved
9 Treve Avenue, Harrow, HA1 4AL
Single storey rear extension: extending 6 metres beyond the original rear wall 3 metres m…
P/4074/17/PRIOR
2017 Approved
9 Treve Avenue, Harrow, HA1 4AL
Single storey rear extension first floor side extension and conversion of existing garage…
P/2513/17
2016 Approved
56 Whitmore Road, Harrow, HA1 4AD
Single storey side to rear extension (demolition of detached garage)
P/0625/16
2025 Approved
54 Whitmore Road, West Harrow, Harrow, HA1 4AD
Certificate of Lawful Development (Proposed): Alterations and extension to roof to form e…
PL/2820/25
2025 Approved
52 Whitmore Road, West Harrow, Harrow, HA1 4AD
Certificate of lawful development (proposed): Alterations to roof to form end gable and r…
PL/0575/25
2024 Approved
62 Whitmore Road, West Harrow, Harrow, HA1 4AD
Certificate of lawful development (proposed): Alterations to roof to form end gable and r…
PL/1487/24
2024 Refused
62 Whitmore Road, West Harrow, Harrow, HA1 4AD
CERTIFICATE OF LAWFUL DEVELOPMENT(PROPOSED): Alterations and extension to roof to form en…
PL/0584/24
2022 Approved
44 Whitmore Road, West Harrow, Harrow, HA1 4AD
CERTIFICATE OF LAWFUL DEVELOPMENT (PROPOSED): Alterations and extension to roof to form e…
P/3653/22
2019 Approved
52 Whitmore Road, West Harrow, Harrow, HA1 4AD
CERTIFICATE OF LAWFUL DEVELOPMENT (PROPOSED): Alterations to roof to form end gable; rear…
P/2719/19
Harrow
Planning Authority Score
4.9/10
Below average
#153 of 296 councils
Relevant to this application:
Householder decisions

Harrow ranks #115 out of 296 councils for householder decision speed. Harrow is also one of the strictest councils - it refuses more householder applications than almost any other, with only 83% approved vs 90% nationally.

One of the strictest councils
only 83% approved vs 90% nationally
These figures are council-wide context, not a prediction for this application. View full council performance
Harrow decision statistics
Based on MHCLG data, the year to March 2026
78%
Overall approval rate
Below avg (87%) #273 of 296
83%
Householder approved
Below avg (90%) #261 of 296
71%
Decided in 8 weeks
Above avg (63%) #115 of 296
33%
Extended time limit
Below avg (41%) #77 of 296
44%
Minor dwellings approved
133 decided (1-9 homes)
80%
Major dwellings approved
5 decided (10+ homes)
38%
Change of use approved
26 decided
1,330
Total decisions
298 refused in the year to March 2026
Source: MHCLG planning statistics · See full council rankings