19 West End Avenue, Pinner, Harrow, HA5 1BH Data via plota.co.uk

PL/2287/26 - Certificate of Lawful Development Proposed Approved
Extensions & alterations

Proposal

Certificate of Lawful Development (Proposed): Alterations to roof to form side dormer with window; rear dormer with rooflight; rooflight in front roof slope; blocking up of ground floor rear door; relocation and resizing of the ground floor side window; blocking up of first floor side window; blocking up of rear ground floor door (demolition of side dormer and first floor platform). Data via plota.co.uk

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View original council record ↗Last checked

Application progress

✓
Received
26 Aug 2026
✓
Approved
20 Oct 2026

Approved on 20 Oct 2026 · Delegated decision · Last checked 21 Oct 2026

Documents 10

Decision & officer reports 2

PDF Decision Notice Decision Notice · 20 Oct 2026 View ↗ PDF Officer Report Delegated Report · 20 Oct 2026 View ↗

Statements & assessments 3

PDF Flood Map Plans · 27 Aug 2026 View ↗ PDF Flood Risk Assessment Report/Assessment · 27 Aug 2026 View ↗ PDF Fire Safety Statement Report/Assessment · 27 Aug 2026 View ↗

Plans & drawings 2

PDF Existing and Proposed Floor Plans, Elevations and site plan Plans · 27 Aug 2026 View ↗ PDF location plan Plans · 27 Aug 2026 View ↗

Application forms 1

PDF Application Form Redacted Application Form (Redacted) · 27 Aug 2026 View ↗

Other documents 2

PDF Photos Photos/Imagery · 27 Aug 2026 View ↗ PDF CIL CIL Document · 27 Aug 2026 View ↗

All documents on the council site ↗

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 ↗
Also on the record
Inside the Harrow built-up area; Public transport access: PTAL 3 (moderate), TfL 2023, for the 100 m square; Priority habitat 36 m away: Deciduous woodland; Designated open space 35 m away; Town centre 87 m away: Pinner.
Not affected
Outside flood zones 2 and 3 · Not green belt · No listed building at the site

Checked on 2 November 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 £875,000 in March 2021. Semi-detached house, freehold.

19 March 2021£875,000

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

Building

Floor area88 m² (947 sq ft)
Energy ratingD (57 out of 100)
PropertyFlat, 5 habitable rooms
Built1900 to 1929
HeatingBoiler and radiators, mains gas
WallsSolid brick, as built, no insulation (assumed)

From the energy performance certificate lodged in December 2010, 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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Other new applications on this street

26 Oct 2026Pending

35 West End Avenue, Pinner, Harrow, HA5 1BH

Single storey rear extension

PL/2832/26
17 Jun 2026Refused

61 West End Avenue, Pinner, Harrow, HA5 1BN

Certificate of Lawful Development (Proposed): Single storey rear extension

PL/1580/26

Nearby new applications

9 Nov 2026Pending

7 Sweetmans Avenue, Pinner, Harrow, HA5 3NS

Single and two storey side to rear extension; rear dormer; installation of two r...

PL/2920/26
6 Nov 2026Pending

TRINITY COURT, 221 Marsh Road, Pinner, Harrow

Electronic Communications Notification: Installation of 3 tripod frames, support...

PL/2953/26
4 Nov 2026Approved

8 Cannon Lane, Pinner, Harrow, HA5 1HL

TPO No. 440 Cannon Lane (No.1) PInner T7 Oak (front, near left boundary): Crown ...

PL/2567/26
4 Nov 2026Approved

19 Westbury Lodge Close, Pinner, Harrow, HA5 3FG

TPO No. 735 Westbury Lodge Close (No.1) Pinner T47 (T1) Rowan (front): reduce la...

PL/2087/26
29 Oct 2026Pending

SWEETMANS BARN, 92 West End Lane, Pinner, Harrow, HA5 3NT

Installation of air conditioning unit to rear

PL/2597/26
29 Oct 2026Pending

SWEETMANS BARN, 92 West End Lane, Pinner, Harrow, HA5 3NT

Listed Building Consent: Installation of two wall mounted internal air condition...

PL/2598/26

Important details

Council
Harrow
Application type
Certificate of Lawful Development Proposed
Postcode
HA5 1BH
Received
26 Aug 2026
Validated
26 Aug 2026
Ward
Pinner South
Case officer
Show
Target decision
21 Oct 2026
Decision
Grant
Decision date
20 Oct 2026
Decision level
Delegated decision
Applicant
Show
Agent
Good Design and Build Ltd

How this decision compares

Decided in 55 days from validation, about the council's usual 56 days. Approved, as 78% of extensions here are.

81%decided within 8 weeks
78%approved
1,884decided 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
21 Oct 2026

Historical activity at this location

20 nearby applications on record - archival context, not part of the live application.

Within ~100m

Nearby activity

2025 Approved
Monument House, Marsh Road, Pinner, Pinner, HA5 5NB
Electronic Communications Notification: Installation of a temporary base-station and scaf…
PL/3079/25
2024 Approved
5 West End Avenue, Pinner, Harrow, HA5 1BH
Single storey rear extension, Alterations to roof to form gable end and rear dormer, Roof…
PL/2969/24
2024 Withdrawn
8a West End Avenue, Pinner, Harrow, HA5 1BJ
Installation of 2 Air Conditioning Units to the side elevation of the property at first f…
PL/1960/24
2022 Approved
33 West End Avenue, Pinner, Harrow, HA5 1BH
Alterations and extension to roof to form end gable; rear dormer with pitched roof; roofl…
P/2876/22
2022 Approved
28 West End Avenue, Pinner, Harrow, HA5 1BJ
Variation of condition 2 (approved plans) attached to planning permission P/1544/21 dated…
P/3066/22
2021 Approved
28 West End Avenue, Pinner, Harrow, HA5 1BJ
Conversion of dwelling into two flats (2 X 3 bed); two storey rear extension; single stor…
P/1544/21
2021 Refused
2a West End Avenue, Pinner, Harrow, HA5 1BJ
Proposed vehicle access; hardsurfacing to front garden
P/2976/21
2021 Approved
38 West End Avenue, Pinner, Harrow, HA5 1BJ
T3 Ash (garden): Crown Reduction of 10 - 15% T4 Ash (garden): Crown Reduction of 10 - 15%…
P/1461/21
2021 Withdrawn
28 West End Avenue, Pinner, Harrow, HA5 1BJ
Conversion of dwelling into two flats (2 X 3 bed); two storey rear extension; single stor…
P/0209/21
2020 Approved
12 West End Avenue, Pinner, Harrow, HA5 1BJ
CERTIFICATE OF LAWFUL DEVELOPMENT (PROPOSED): Alterations to roof to form end gable and r…
P/3614/20
2020 Approved
16 West End Avenue, Pinner, HA5 1BJ
Single storey rear extension
FP/00685/2020
2020 Approved
16 West End Avenue, Pinner, HA5 1BJ
Single storey rear extension
P/0071/20
2018 Approved
17 West End Avenue, Pinner, HA5 1BH
Alterations and extension to roof to form hipped gable; second floor rear extension; fron…
P/2954/18
2017 Approved
38 West End Avenue, Pinner, HA5 1BJ
Single storey rear extensions (amended plans received)
P/5367/17
2016 Approved
38 West End Avenue, Pinner, HA5 1BJ
T3 t4 ash (rear garden): crown reduce 20% t5 pear (rear garden): reduce to reshape
P/5649/16
2016 Approved
Abbeyfield House, 32 - 34 West End Avenue, Pinner, HA5 1BJ
Non material amendment to planning permission p/0089/14 dated 15/04/2016 to allow the reb…
P/4759/16
2016 Approved
Abbeyfield House, 32 - 34 West End Avenue, Pinner, HA5 1BJ
Non material amendment to planning permission p/0089/14 dated 15/04/2014 to allow minor a…
P/4364/16
2016 Approved
28A West End Avenue, Pinner, HA5 1BJ
Certificate of lawful development (proposed): single storey outbuilding in rear garden
P/3112/16
2016 Approved
Abbeyfield House, 32 - 34 West End Avenue, Pinner, HA5 1BJ
Non-material amendment to planning permission p/0089/14 dated 15/04/16 to allow amendment…
P/3490/16
2016 Approved
28A West End Avenue, Pinner, HA5 1BJ
Non-material amendment to planning permission p/5582/15 dated 25/1/16 to allow the remova…
P/3409/16
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

Sale prices: Contains HM Land Registry data © Crown copyright and database right 2026. This data is licensed under the Open Government Licence v3.0.

Freehold boundary: © Crown copyright and database rights 2026, HM Land Registry. Polygons © Crown copyright and database rights 2026 Ordnance Survey 100026316. Conditions of use

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.