22 Cuckoo Hill Drive, Pinner, Harrow, HA5 3PF Data via plota.co.uk

PL/2470/26 - Prior Notification - Larger Home Extension Pending Consideration

Proposal

Single storey rear extension: 6.00 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
17 Sept 2026
Decision
Expected by 29 Oct 2026

This application is under consideration - no decision has been issued yet. Plota predicts a decision around 12 Nov 2026, from Harrow's recent extensions.

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 19 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.

Sales history 1

Last sold for £1,150,000 in February 2026. Detached house, freehold.

20 February 2026£1,150,000

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 3PF
Received
17 Sept 2026
Validated
17 Sept 2026
Ward
Pinner South
Case officer
Show
Target decision
29 Oct 2026
Decision level
Delegated decision
Applicant
Show
Agent
SSK Architects Ltd

Decision outlook

Day 17 of the 56-day target. Harrow usually decides extensions by day 56.

Day 1739 days to the 56-day target
84%decided within 8 weeks
78%approved
1,672decided 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
29 Oct 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.