51 The Avenue, Rayners Lane, Pinner, Harrow, HA5 5BN Data via plota.co.uk

PL/2687/26 - Householder Pending Consideration
Extensions & alterations

Proposal

Outbuilding at rear for use as gym (retrospective); alterations to roof to form flat roof; external alterations Data via plota.co.uk

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View original council record ↗Last checked

Application progress

✓
Received
9 Oct 2026
Decision
Expected by 4 Dec 2026

Under consideration

No decision has been issued yet. Plota predicts a decision around 4 Dec 2026, from Harrow's recent extensions.

Documents

View the documents on the council's website ↗

Site constraints 3

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 2 (poor), TfL 2023, for the 100 m square.
Not affected
Outside flood zones 2 and 3 · Not green belt · No listed building at the site

Checked on 17 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 £305,000 in June 2006. Semi-detached house, freehold.

20 June 2006£305,000

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

Building

Floor area87 m² (936 sq ft)
Energy ratingD (62 out of 100), could reach B
PropertySemi-detached house, 5 habitable rooms
Built1930 to 1949
HeatingBoiler and radiators, mains gas
WallsSolid brick, as built, no insulation (assumed)

From the energy performance certificate lodged in December 2017, 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

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
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

Nearby new applications

14 Oct 2026Pending

20 Oakington Avenue, Rayners Lane, Harrow, HA2 7JJ

Single storey rear extension: 8.00 metres deep, 4.00 metres maximum height and 3...

PL/2722/26
12 Oct 2026Pending

7 Downs Avenue, Pinner, Harrow, HA5 5AQ

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

PL/2691/26
9 Oct 2026Pending

100 Chester Drive, North Harrow, Harrow, HA2 7PY

Single storey front extension incorporating porch; Single storey side to rear ex...

PL/2678/26
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
14 Sept 2026Pending

CARMINE COURT, 202 Imperial Drive, Rayners Lane, Harrow

Replacement and installation of external cladding; external alterations

PL/2427/26
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

Important details

Council
Harrow
Application type
Householder
Postcode
HA5 5BN
Received
9 Oct 2026
Validated
9 Oct 2026
Ward
Pinner South
Case officer
Show
Target decision
4 Dec 2026
Decision level
Delegated decision
Applicant
Show
Agent
AVIM Consultancy Ltd

Decision outlook

Day 10 of the 56-day target. Harrow usually decides extensions by day 56.

Day 1046 days to the 56-day target
84%decided within 8 weeks
79%approved
1,937decided 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
4 Dec 2026

Historical activity at this location

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

Within ~100m

Nearby activity

2025
11 Central Avenue, Pinner, Harrow, HA5 5BT
Single and two storey side to rear extension; conversion of garage to habitable room; sin…
PL/3181/25
2025 Approved
11 Central Avenue, Pinner, Harrow, HA5 5BT
Single storey rear extension: 5.00 metres deep, 3.00 metres maximum height and 2.50 metre…
PL/2513/25
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
11 Central Avenue, Pinner, Harrow, HA5 5BT
Single storey rear extension: 6.00 metres deep, 3.00 metres maximum height and 3.00 metre…
PL/1662/25
2025 Approved
27 Central Avenue, Pinner, Harrow, HA5 5BT
Single storey front extension incorporating porch, Conversion of garage to habitable room…
PL/1504/25
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
37 Central Avenue, Pinner, HA5 5BT
Single storey side extension; first floor front extension; external alterations
P/4697/21/6022
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 Refused
37 Central Avenue, Pinner, Harrow, HA5 5BT
Single storey side extension; first floor front extension; external alterations
P/4697/21
2021 Approved
37 Central Avenue, Pinner, Harrow, HA5 5BT
Single storey rear extension; external alterations
P/4695/21
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
35 Central Avenue, Pinner, Harrow, HA5 5BT
Conversion of garage into habitable room; first floor rear extension; external alterations
P/3845/21
2021 Approved
35 Central Avenue, Pinner, Harrow, HA5 5BT
Single Storey Rear Extension: 4.30 metres deep, 3.54 metres maximum height, 3.00 metres h…
P/3761/21/PRIOR
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
39 Central Avenue, Pinner, Harrow, HA5 5BT
Single storey rear extension
P/1328/21
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
2018 Approved
8 The Avenue, Rayners Lane, Pinner, HA5 5BL
Single storey rear extension; external alterations
P/0838/18
2017 Approved
29 Central Avenue, Pinner, HA5 5BT
Single story rear extension
P/1670/17/5271
2017 Approved
29 Central Avenue, Pinner, HA5 5BT
Single story rear extension
P/1670/17
2017 Approved
54 Central Avenue, Pinner, HA5 5BS
Single storey front extension; conversion of garage to room; external alterations
P/0959/17
2016 Approved
57 Central Avenue, Pinner, HA5 5BT
Single storey front extension; single storey rear extension (demolition of conservatory)
P/2430/16
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.

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.