20 Greystoke Avenue, North Harrow, Pinner, Harrow, HA5 5SL Data via plota.co.uk

PL/2629/26 - Householder Pending Consideration

Proposal

Single and two storey side to rear extension with Juliette balcony; Single storey rear extension; External alterations (Demolition of outbuilding to rear) Data via plota.co.uk

View original council record ↗Last checked

Application progress

✓
Received
5 Oct 2026
✓
Validated
26 Oct 2026
Decision
Expected by 21 Dec 2026

Under consideration

No decision has been issued yet. Plota predicts a decision around 21 Dec 2026, from Harrow's recent demolitions.

Site constraints 6

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 ↗
Scheduled monument 140 m away: Pinner deer park, Pinner Park Farm
Its setting is a consideration for work nearby.
Nationally important archaeology protected by the Secretary of State. Work that affects the monument or its setting is rarely permitted.
Historic England ↗
Also on the record
Inside the Harrow built-up area; Public transport access: PTAL 1a (very poor), TfL 2023, for the 100 m square; Green belt 20 m away: London; Natural England's Provisional ALC map (1:250,000, 1970s) had this area as grade 3, but it predates the buildings here and the current map does not class it as farmland.
Not affected
Outside flood zones 2 and 3 · No listed building at the site

Checked on 27 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.

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Important details

Council
Harrow
Application type
Householder
Postcode
HA5 5SL
Received
5 Oct 2026
Validated
26 Oct 2026
Ward
Headstone
Case officer
Show
Target decision
21 Dec 2026
Decision level
Delegated decision
Applicant
Show

Decision outlook

Day 2 of the 56-day target. Harrow usually decides demolitions by day 56.

Day 254 days to the 56-day target
66%decided within 8 weeks
77%approved
276decided in the last year

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

Consultation & key dates

Statutory expiry
21 Dec 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