108 Nibthwaite Road, Harrow, HA1 1TG Data via plota.co.uk

PL/2490/25 - Certificate of Lawful Development Proposed Approved

Proposal

Certificate of Lawful Development Proposed: Alteration to roof from hip to gable end; rear facing dormer and 2no velux window on front roof slope. Data via plota.co.uk

View original council record ↗Last checked

Application progress

✓
Received
25 Sept 2025
✓
Approved
20 Nov 2025
✗
Appeal dismissed
30 Apr 2026

Approved on 20 Nov 2025 · Delegated decision · Last checked 16 Oct 2026

Site constraints 3

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; 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 £650,000 in October 2025. Semi-detached house, freehold.

3 October 2025£650,000Recorded as a transfer outside a standard sale

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

Building

Floor area200 m² (2,153 sq ft)
Energy ratingD (66 out of 100), could reach C
PropertyDetached house, 8 habitable rooms
Built1900 to 1929
HeatingBoiler and radiators, mains gas
WallsSolid brick, as built, no insulation (assumed)

From the energy performance certificate lodged in March 2026, 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
HA1 1TG
Received
25 Sept 2025
Validated
25 Sept 2025
Ward
Marlborough
Case officer
Show
Target decision
20 Nov 2025
Decision
Grant
Decision date
20 Nov 2025
Decision level
Delegated decision
Appeal
Dismissed · 30 Apr 2026 · Written Representations · Inspectorate case 6004346 ↗
Applicant
Show
Agent
Manu Design Limited
Freehold owner
Show

How this decision compares

Decided in 56 days from validation, about the council's usual 56 days. Approved, as 79% 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
20 Nov 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.

Freehold owner: Information produced by HM Land Registry. © Crown copyright 2026. Source: HM Land Registry, UK and overseas companies that own property in England and Wales, September 2026 release.