TURNPIDGEONS Oxhey Lane, Hatch End, Pinner, Harrow, HA5 4AL Data via plota.co.uk

PL/2086/26 - Prior Notification - Larger Home Extension Refused

Proposal

Single storey rear extension: 8.00 metres deep, 3.00 metres maximum height and 3.00 metres high to the eaves Data via plota.co.uk

View original council record ↗Last checked

Application progress

✓
Received
5 Aug 2026
✗
Refused
15 Sept 2026
Appeal
Not lodged

Refused on 15 Sept 2026 · Delegated decision · Last checked 30 Sept 2026

Site constraints 7

Green belt: London
Inappropriate development needs very special circumstances.
Green belt policy allows a short list of exceptions, such as limited extensions and replacement buildings. Anything else needs very special circumstances that clearly outweigh the harm. Some green belt land can count as grey belt, where it does not strongly serve the green belt's purposes. The council decides this in its green belt assessment or on each application, so we do not mark it here.
Read the government guidance ↗
Agricultural land, grade 3b
Not best and most versatile land (grades 1, 2 and 3a). Source: the Predictive Agricultural Land Classification Map (Defra and Natural England, 2025; the Welsh Government's Predictive ALC Map 2 in Wales), a model rather than a site survey. A site survey can differ.
Where development of farmland is needed, policy prefers poorer land over the best and most versatile (grades 1, 2 and 3a). Three sources: Natural England's post-1988 field surveys, which are definitive where they exist; the Defra predictive map for England (2025) and the Welsh Government predictive map, modelled from the soil map with 3a and 3b split; and the 1970s provisional map, which planners and other services still show, coarser and with grade 3 undivided. Where the provisional and predicted grades disagree, treat the predicted grade as the current estimate and expect an application to carry its own survey.
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 1
Where habitat is joined up enough to work as a network. Context, not a constraint on its own.
Also on the record
1 listed building within 150 m; Public transport access: PTAL 0 (very poor), TfL 2023, for the 100 m square; Priority habitat 38 m away: Lowland heathland.
Not affected
Outside flood zones 2 and 3 · No scheduled monument at the site

Checked on 17 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 2

Last sold for £885,000 in October 2005. Detached house, freehold.

14 October 2005£885,000
26 March 1999£550,000

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

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Important details

Council
Harrow
Application type
Prior Notification - Larger Home Extension
Postcode
HA5 4AL
Received
5 Aug 2026
Validated
5 Aug 2026
Ward
Harrow Weald
Case officer
Show
Target decision
16 Sept 2026
Decision
Refused
Decision date
15 Sept 2026
Decision level
Delegated decision
Applicant
Show
Agent
AD-P

How this decision compares

Decided in 41 days from validation, 15 days faster than Harrow's median of 56 for extensions. 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
16 Sept 2026
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.