14 Downs Avenue, Pinner, Harrow, HA5 5AH Data via plota.co.uk

PL/2766/26 - Certificate of Lawful Development Proposed Pending Consideration
Extensions & alterations

Proposal

Certificate of lawful development (proposed): Alterations to roof to form wrap around dormer to side, rear and side roof slopes with part pitch to gable end Data via plota.co.uk

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View original council record ↗Last checked

Application progress

✓
Received
19 Oct 2026
✓
Validated
20 Oct 2026
Decision
Expected by 15 Dec 2026

Under consideration

No decision has been issued yet. Plota predicts a decision around 15 Dec 2026, from Harrow's recent extensions.

Documents 11

Plans & drawings 9

PDF Proposed sections Plans · 21 Oct 2026 View ↗ PDF Proposed elevations Plans · 21 Oct 2026 View ↗ PDF Location plan Plans · 20 Oct 2026 View ↗ PDF proposed elevations & sections Plans · 20 Oct 2026 View ↗ PDF Existing Elevation(s) Plans · 20 Oct 2026 View ↗ PDF existing floor plans Plans · 20 Oct 2026 View ↗ PDF Block plan of the site Plans · 20 Oct 2026 View ↗ PDF proposed section(s) Plans · 20 Oct 2026 View ↗ PDF Proposed Floor plans(s) Plans · 20 Oct 2026 View ↗

Application forms 1

PDF Application Form redacted Application Form (Redacted) · 20 Oct 2026 View ↗

Other documents 1

PDF photos Photos/Imagery · 20 Oct 2026 View ↗

All documents on the council site ↗

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 1b (very poor), 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 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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Other new applications on this street

12 Oct 2026Pending

7 Downs Avenue, Pinner, Harrow, HA5 5AQ

Certificate of Lawful Development (Proposed): Alterations and extension to roof ...

PL/2691/26

Nearby new applications

20 Oct 2026Pending

Colaz, 464 Alexandra Avenue, Rayners Lane, Harrow, HA2 9TL

New shop font including outdoor seating area with stairs and ramp (part retrospe...

PL/2732/26
20 Oct 2026Pending

97 Village Way, Rayners Lane, Pinner, Harrow, HA5 5AA

Certificate of lawful development (proposed): Rear dormer

PL/2742/26
12 Oct 2026Pending

7 Downs Avenue, Pinner, Harrow, HA5 5AQ

Certificate of Lawful Development (Proposed): Alterations and extension to roof ...

PL/2691/26
10 Oct 2026Pending

7 Downs Avenue, Pinner, Harrow, HA5 5AQ

Single storey rear extension: 4.55 metres deep, 3.62 metres maximum height and 3...

PL/2682/26
9 Oct 2026Pending

51 The Avenue, Rayners Lane, Pinner, Harrow, HA5 5BN

Outbuilding at rear for use as gym (retrospective); alterations to roof to form ...

PL/2687/26
7 Oct 2026Pending

CARMINE COURT, 202 Imperial Drive, Rayners Lane, Harrow

Replacement and installation of external cladding; external alterations

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Important details

Council
Harrow
Application type
Certificate of Lawful Development Proposed
Postcode
HA5 5AH
Received
19 Oct 2026
Validated
20 Oct 2026
Ward
Pinner South
Case officer
Show
Target decision
15 Dec 2026
Decision level
Delegated decision
Applicant
Show
Agent
Sabitha Sutrave

Decision outlook

Day 8 of the 56-day target. Harrow usually decides extensions by day 56.

Day 848 days to the 56-day target
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 2026

Historical activity at this location

26 previous applications on record - archival context, not part of the live application.

This property

Previous applications at this address

2018 Approved
Single storey rear extension (retrospective)
P/0561/18
Within ~100m

Nearby activity

2025
52 Downs Avenue, Pinner, Harrow, HA5 5AH
Single storey front extension incorporating porch Single storey side to rear extension; E…
PL/3204/25
2025 Approved
52 Downs Avenue, Pinner, Harrow, HA5 5AH
Single storey rear extension: 5.00 metres deep, 3.60 metres maximum height and 2.74 metre…
PL/2690/25
2024 Approved
25 West Avenue, Rayners Lane, Pinner, Harrow, HA5 5BZ
Single storey rear extension: 5.00 metres deep, 3.15 metres maximum height and 3.00 metre…
PL/3390/24
2023 Approved
33 West Avenue, Rayners Lane, Pinner, Harrow, HA5 5BZ
Single storey rear extension: 5.00 metres deep, 3.10 metres maximum height and 3.00 metre…
PL/0687/23
2023 Withdrawn
33 West Avenue, Rayners Lane, Pinner, Harrow, HA5 5BZ
Single storey rear extension: 5.00 metres deep, 3.20 metres maximum height and 3.10 metre…
PL/0614/23
2023 Approved
29 Downs Avenue, Pinner, Harrow, HA5 5AQ
Single storey front extension; external alterations
P/2388/23
2023 Refused
29 Downs Avenue, Pinner, Harrow, HA5 5AQ
Single Storey Rear Extension: 6.00 metres deep, 3.50 metres maximum height, 3.00 metres h…
P/2172/23/PRIOR
2023 Approved
7 West Avenue, Pinner, HA5 5BZ
Single storey rear extension; alterations and extension to rear dormer; external alterati…
P/1366/23
2023 Withdrawn
16 The Glen, Rayners Lane, Pinner, Harrow, HA5 5AY
Alterations and extension to raise roof height to create habitable roofspace; rooflights…
P/1008/23
2022 Approved
37 West Avenue, Rayners Lane, Pinner, Harrow, HA5 5BZ
Conversion of garage into habitable room with alterations to front and side elevations; S…
P/3822/22
2022 Approved
4 West Avenue, Rayners Lane, Pinner, Harrow, HA5 5BY
Single storey front extension incorporating porch; single storey rear extension; alterati…
P/1614/22
2022 Refused
43 Downs Avenue, Pinner, Harrow, HA5 5AQ
Single storey rear extension: 8.00 metres deep, 3.50 metres maximum height and 3.00 metre…
P/1665/22/PRIOR
2022 Approved
7 West Avenue, Rayners Lane, Pinner, Harrow, HA5 5BZ
Single storey rear extension; alterations and extension to rear dormer; external alterati…
P/1365/22
2022 Refused
16 The Glen, Rayners Lane, Pinner, Harrow, HA5 5AY
Alterations and extension to create first floor level to bungalow to form two storey dwel…
P/0887/22
2021 Approved
9 West Avenue, Rayners Lane, Pinner, Harrow, HA5 5BZ
First floor rear extension
P/4280/21
2021 Approved
16 The Glen, Pinner, HA5 5AY
Alterations and extension to create first floor level to bungalow to form two storey dwel…
P/1176/21/5939
2021 Approved
26 The Glen, Rayners Lane, Pinner, Harrow, HA5 5AY
Single storey front extension; external alterations
P/3637/21
2021 Approved
26 The Glen, Pinner, HA5 5AY
Single storey front infill extension; new front entrance; rooflights in front and side ro…
P/3485/20/5875
2021 Refused
16 The Glen, Rayners Lane, Pinner, Harrow, HA5 5AY
Alterations and extension to create first floor level to bungalow to form two storey dwel…
P/1176/21
2021 Approved
50 Downs Avenue, Pinner, Harrow, HA5 5AH
Single storey rear extension
P/0111/21
2016 Approved
21 West Avenue, Pinner, HA5 5BZ
Single storey rear extension: extending 4.5 Metres beyond the original rear wall 3.2 Metr…
P/1874/16
2016 Approved
3 Downs Avenue, Pinner, HA5 5AQ
Conservatory at rear
P/1160/16
2016 Approved
26 West Avenue, Pinner, HA5 5BY
Conversion of garage into habitable room with alterations to front elevation
P/0727/16
2016 Approved
2 Downs Avenue, Pinner, HA5 5AH
Single storey front extension; single storey side to rear extension (demolition of attach…
P/0332/16
2016 Approved
36 West Avenue, Pinner, HA5 5BY
Front porch
P/0183/16
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
Source: MHCLG planning statistics · See full council rankings