318 Whitchurch Lane, Edgware, Harrow, HA8 6QX Data via plota.co.uk

PL/2698/25 - Certificate of Lawful Development Proposed Refused

Proposal

Certificate of Lawful Proposed Development: Front porch; Single storey rear extension Data via plota.co.uk

View original council record ↗Last checked

Application progress

✓
Received
20 Oct 2025
✗
Refused
15 Dec 2025
✗
Appeal dismissed
16 Jun 2026

Refused on 15 Dec 2025 · Delegated decision · Last checked 6 Oct 2026

Site constraints 4

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 ↗
Habitat network: Network Enhancement Zone 2
Where habitat is joined up enough to work as a network. Context, not a constraint on its own.
Also on the record
Inside the Harrow built-up area; Public transport access: PTAL 3 (moderate), TfL 2023, for the 100 m square.
Not affected
Outside flood zones 2 and 3 · Not green belt · No scheduled monument at the site

Checked on 6 October 2026. Historic England, the Environment Agency, Natural England, Transport for London (public transport access levels, Powered by TfL Open Data, OGL v3.0, contains OS data © Crown copyright and database right 2025) 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.

Sales history 1

Last sold for £670,000 in July 2025. Semi-detached house, freehold.

28 July 2025£670,000

Sale prices from HM Land Registry's price paid record, matched to this application by its address.

Building

Floor area126 m² (1,356 sq ft)
Energy ratingC (69 out of 100), could reach B
PropertyDetached house, 6 habitable rooms
Built1983 to 1990
HeatingBoiler and radiators, mains gas
WallsCavity wall, as built, insulated (assumed)

From the energy performance certificate lodged in September 2024, the latest held for this property, matched to this application by its address. The building may have changed since. View the certificate

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Important details

Council
Harrow
Application type
Certificate of Lawful Development Proposed
Postcode
HA8 6QX
Received
20 Oct 2025
Validated
20 Oct 2025
Ward
Canons
Case officer
Show
Target decision
15 Dec 2025
Decision
Refused
Decision date
15 Dec 2025
Decision level
Delegated decision
Appeal
Dismissed · 16 Jun 2026 · Written Representations · Inspectorate case 6007896 ↗
Applicant
Show
Agent
M C S Design Architectural Services

How this decision compares

Decided in 56 days from validation, about the council's usual 56 days. Refused, as 21% of extensions here are.

80%decided within 8 weeks
79%approved
1,936decided in the last year

Plota live figures for extensions decided by Harrow in the last twelve months, from validation. Harrow decision record →

Consultation & key dates

Statutory expiry
15 Dec 2025
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

Sale prices: Contains HM Land Registry data © Crown copyright and database right 2026. This data is licensed under the Open Government Licence v3.0.

Energy performance: Energy performance certificates from the Energy Performance of Buildings Register, Ministry of Housing, Communities and Local Government. Contains public sector information licensed under the Open Government Licence v3.0. © Crown copyright 2026.