18 The Avenue, Rayners Lane, Pinner, Harrow, HA5 5BL Data via plota.co.uk

PL/0942/26 - Householder Refused
Extensions & alterations

Proposal

Single storey front extension incorporating front porch; single storey side extension; single storey rear extension; first floor front extension; raised patio to the rear; rooflight in front roof slope (Demolition of garage and rear conservatory)” Data via plota.co.uk

Track application Save this application and get an email when its status or decision changes. Alerts nearby Get email alerts for new planning applications near this address.
View original council record ↗Last checked

Application progress

✓
Received
7 Apr 2026
✓
Validated
27 Apr 2026
✗
Refused
22 Jul 2026
Appeal
Appeal In Progress

Refused on 22 Jul 2026 · Delegated decision · Last checked 1 Oct 2026

Documents 5

Decision & officer reports 1

PDF Officer Report Delegated Report · 22 Jun 2026 View ↗

Statements & assessments 1

PDF Flood Risk Assessment Supporting Info (Redacted) · 28 Apr 2026 View ↗

Plans & drawings 1

PDF Proposed & existing floor plans & elevations Plans · 8 Apr 2026 View ↗

Application forms 1

PDF Application Form Redacted Application Form (Redacted) · 8 Apr 2026 View ↗

Other documents 1

PDF DN - FULL and HSE Refused DN - FULL and HSE Refused · 22 Jul 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 ↗
Also on the record
Inside the Harrow built-up area; Public transport access: PTAL 3 (moderate), TfL 2023, for the 100 m square; Town centre 76 m away: Rayners Lane.
Not affected
Outside flood zones 2 and 3 · Not green belt · No listed building at the site

Checked on 6 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 1

Last sold for £800,000 in March 2026. Semi-detached house, freehold.

25 March 2026£800,000

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

Building

Floor area160 m² (1,722 sq ft)
Energy ratingD (58 out of 100), could reach C
PropertySemi-detached house, 6 habitable rooms
Built1930 to 1949
HeatingBoiler and radiators, mains gas
WallsSolid brick, as built, no insulation (assumed)

From the energy performance certificate lodged in February 2025, the latest held for this property. The building may have changed since. View the certificate

Work with planning data?

Every application in Harrow - and every UK council - as a live feed, an API, or a bulk CSV export.

About Plota's data service

Other new applications on this street

30 Jul 2026Approved

22 The Avenue, Rayners Lane, Pinner, Harrow, HA5 5BL

Certificate of Lawful Development (Proposed): Use of room as administrative book...

PL/2038/26
15 Sept 2026Pending

37 The Avenue, Hatch End, Pinner, Harrow, HA5 4EL

Two storey front extension with roof canopy; single and two storey rear extensio...

PL/2453/26
6 Aug 2026Approved

62 The Avenue, Hatch End, Pinner, Harrow, HA5 4HA

Single storey rear extension: 8.00 metres deep, 3.00 metres maximum height and 3...

PL/2107/26
5 Aug 2026Approved

24 The Avenue, Hatch End, Pinner, Harrow, HA5 4ER

Non-material amendment to planning permission PL/3151/25 dated 20/07/2026 to all...

PL/2094/26

Nearby new applications

5 Oct 2026Pending

The Turret, Rayners Lane, North Harrow, Rayners Lane, HA2 9TS

Replacement of 6no. existing antennas with 6no. new antennas and the addition of...

PL/2633/26
29 Sept 2026Pending

88 Waverley Road, Rayners Lane, Harrow, HA2 9RD

Single storey rear extension: 6.00 metres deep, 3.50 metres maximum height and 3...

PL/2580/26
24 Sept 2026Pending

R T C Education Limited, 167 Imperial Drive, Rayners Lane, Harrow, HA2 7HD

Details pursuant to Condition 19 (secured by design) attached to planning permis...

PL/2530/26
22 Sept 2026Pending

35 Central Avenue, Pinner, Harrow, HA5 5BT

Single storey rear extension: 4.30 metres deep, 3.23 metres maximum height and 3...

PL/2500/26
25 Aug 2026Pending

20 South Close, Rayners Lane, Pinner, Harrow, HA5 5AE

Single storey front extension incorporating front porch; conversion of garage to...

PL/2271/26
16 Jun 2026Pending

7A Village Way East, Rayners Lane, Harrow, HA2 7LX

Rear dormer; installation of two roof lights in front roof slope

PL/1655/26

Important details

Council
Harrow
Application type
Householder
Postcode
HA5 5BL
Received
7 Apr 2026
Validated
27 Apr 2026
Ward
Pinner South
Case officer
Show
Target decision
22 Jul 2026
Decision
Refused
Decision date
22 Jul 2026
Decision level
Delegated decision
Applicant
Show
Agent
DesignLabs London Ltd

How this decision compares

Decided in 86 days from validation, 30 days slower than Harrow's median of 56 for extensions. Refused, as 22% of extensions here are.

84%decided within 8 weeks
78%approved
1,726decided 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
22 Jul 2026

Historical activity at this location

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

Within ~100m

Nearby activity

2025 Approved
12 Central Avenue, Pinner, Harrow, HA5 5BS
Single storey front extension incorporating porch; Conversion of garage to habitable room…
PL/2408/25
2025 Approved
3 The Avenue, Rayners Lane, Pinner, Harrow, HA5 5BN
Single storey rear extension: 5.00 metres deep, 3.00 metres maximum height and 2.88 metre…
PL/0964/25
2024 Approved
50 Central Avenue, Pinner, Harrow, HA5 5BS
Single storey rear extension; raised patio at rear; installation of boundary fence to rea…
PL/2199/24
2022 Approved
32 The Avenue, Rayners Lane, Pinner, Harrow, HA5 5BL
Single storey front extension incorporating front porch and conversion of garage to habit…
P/0473/22
2021 Approved
7 The Avenue, Rayners Lane, Pinner, Harrow, HA5 5BN
Conversion of dwellinghouse into two flats (1 x 1 Bed and 1 x 2 Bed); Refuse and Cycle St…
P/3949/21
2021 Approved
26 The Avenue, Rayners Lane, Pinner, Harrow, HA5 5BL
Single storey front extension incorporating front porch; front dormer roof extension, sin…
P/1708/21
2021 Approved
11 The Close, Rayners Lane, Pinner, Harrow, HA5 5EU
Single storey rear extension: 4.50 metres deep, 4.00 metres maximum height and 2.90 metre…
P/0735/21/PRIOR
2020 Approved
28 Central Avenue, Pinner, Harrow, HA5 5BS
Single storey rear extension
P/4250/20
2020 Approved
28 Central Avenue, Pinner, HA5 5BS
5.81Mts deep single storey rear extension for the full width of the existing house extens…
P/2821/20/PREAPP
2020 Approved
28 Central Avenue, Pinner, Harrow, HA5 5BS
Single storey front extension incorporating front porch; front entrance canopy; first flo…
P/1922/20
2020 Refused
28 Central Avenue, Pinner, Harrow, HA5 5BS
Single Storey Rear Extension: 5.80 metres deep, 3.00 metres maximum height, 2.90 metres h…
P/1965/20/PRIOR
2020 Approved
2 Central Avenue, Pinner, HA5 5BS
Single storey rear extension; conversion of garage to habitable room; replacement of gara…
P/0366/20
2019 Approved
34 The Avenue, Rayners Lane, Pinner, Harrow, HA5 5BL
Front porch; single and two storey rear extension; conversion of garage to study with ins…
P/1320/19
2019 Approved
34 The Avenue, Rayners Lane, Pinner, Harrow, HA5 5BL
Single Storey Rear Extension: 4.3 metres deep, 3.3 metres maximum height, 3 metres high t…
P/1061/19/PRIOR
2018 Refused
34 The Avenue, Rayners Lane, Pinner, Harrow, HA5 5BL
Front porch; two storey rear extension; rooflight in front roofslope; conversion of garag…
P/4805/18
2018 Approved
34 The Avenue, Rayners Lane, Pinner, Harrow, HA5 5BL
Single Storey Rear Extension: 4.5 metres deep, 2.8 metres maximum height, 2.6 metres high…
P/4845/18/PRIOR
2018 Approved
8 The Avenue, Rayners Lane, Pinner, HA5 5BL
Single storey rear extension; external alterations
P/0838/18
2017 Approved
54 Central Avenue, Pinner, HA5 5BS
Single storey front extension; conversion of garage to room; external alterations
P/0959/17
2025
12 Central Avenue, Pinner, Harrow, HA5 5BS
Certificate of lawful development (proposed): Single storey rear extension
PL/3075/25
2020 Approved
17 The Avenue, Rayners Lane, Pinner, Harrow, HA5 5BN
CERTIFICATE OF LAWFUL DEVELOPMENT (PROPOSED): Alterations to roof to form end gable and r…
P/3008/20
2019 Approved
30 Central Avenue, Pinner, Harrow, HA5 5BS
Certificate of lawful development (proposed): Use of room on ground floor as private car…
P/1162/19
2017 Approved
30 Central Avenue, Pinner, HA5 5BS
Certificate of lawful development (proposed): conversion of garage to habitable room; ext…
P/1770/17
2017 Approved
9 The Close, Rayners Lane, Pinner, HA5 5EU
Certificate of lawful development (proposed): single storey side and rear extensions
P/1264/17
2017 Approved
38 Central Avenue, Pinner, HA5 5BS
Certificate of lawful development (proposed): conversion of garage into habitable room in…
P/0236/17
2016 Approved
44 Central Avenue, Pinner, HA5 5BS
Certificate of lawful development (proposed): enlargement of existing rear dormer
P/4143/16
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.