320B Great West Road, Hounslow, TW5 0BA Data via plota.co.uk

P/2026/1701 - Lawful Development Certificate (Proposed) Refused
Extensions & alterations

Proposal

Certificate of lawfulness for the proposed erection of a detached outbuilding in the rear garden. Data via plota.co.uk

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View original council record ↗Last checked

Application progress

✓
Received
4 Jun 2026
✓
Validated
9 Jun 2026
✗
Refused
4 Aug 2026
Appeal
Not lodged

Refused on 4 Aug 2026 · Last checked 18 Sept 2026

Documents 5

Decision & officer reports 2

PDF DECCERTR P-Decision Notice · 4 Aug 2026 View ↗ PDF DEL_REPORT_LDC P-Delegated Report · 30 Jul 2026 View ↗

Plans & drawings 2

PDF P-All in one Plans Proposed P-All in one Plans Proposed · 9 Jun 2026 View ↗ PDF P-Location Plan P-Location Plan · 9 Jun 2026 View ↗

Application forms 1

PDF P-Planning Application Form P-Planning Application Form · 9 Jun 2026 View ↗

All documents on the council site ↗

Site constraints 5

Article 4 direction
Dwellinghouses (C3) to small HMOs (C4) - borough-wide Article 4 Direction. Named permitted development rights are withdrawn here.
An Article 4 direction withdraws particular permitted development rights, so work that would normally need no application needs one here. Not every council has published its directions.
Air quality management area: Hounslow 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
National infrastructure project 1186 m away: M4 Junctions 3 to 12 Smart Motorway; Inside the Hounslow 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 6 October 2026. Historic England, the Environment Agency, Natural England, the Planning Inspectorate, 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

14 Sept 2026Pending

504 Great West Road, Hounslow, TW5 0TE

Variation of condition 4 (Approved Hours Of Operation) following planning permi...

P/2026/2605
28 Jul 2026Pending

192 Great West Road,Hounslow,TW5 9AR

Erection of a first floor side extension, part first floor rear extension and a ...

P/2026/2184
29 Jun 2026Refused

217 Great West Road, Hounslow, TW5 0DQ

Erection of a part side roof extension incorporating the change of use from a si...

P/2026/1917
26 Jun 2026Approved

470 Great West Road,Hounslow,TW5 0PD

Erection of a part first floor rear extension.

P/2026/1912

Nearby new applications

14 Sept 2026Pending

47 Sutton Road,Hounslow,TW5 0PN

Certificate of lawfulness for the proposed erection of a detached outbuilding in...

P/2026/2609
26 Aug 2026Pending

2 Dorset Waye,Hounslow,TW5 0ND

Retrospective application for the erection of a single storey rear extension and...

P/2026/2436
7 Sept 2026Pending

13 Orchard Avenue,Hounslow,TW5 0DU

Erection of a single storey rear and first floor rear extension and a first floo...

P/2026/2535
3 Sept 2026Pending

11 West Way,Hounslow,TW5 0JD

Erection of a first floor rear extension.

P/2026/2502
10 Jun 2026Pending

18 Sutton Way,Hounslow,TW5 0JA

Erection of a front porch extension, rear roof extension with hip to gable conve...

P/2026/1723
26 Mar 2026Pending

50 St Pauls Close,Hounslow,TW3 3DF

Certificate of lawfulness for the proposed use of the ground floor of the premis...

P/2026/1007

Important details

Council
Hounslow
Application type
Lawful Development Certificate (Proposed)
Postcode
TW5 0BA
Received
4 Jun 2026
Validated
9 Jun 2026
Ward
Heston Central
Case officer
Show
Decision
LAWFNOTGRANT
Decision date
4 Aug 2026
Applicant
Show

How this decision compares

Decided in 56 days from validation, about the council's usual 54 days. Refused, as 19% of extensions here are.

78%decided within 8 weeks
81%approved
920decided in the last year

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

Public comments

No public comments yet.

Read the comments on the council site ↗

Consultation & key dates

Consultation
9 Jun 2026
Statutory expiry
4 Aug 2026

Historical activity at this location

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

This property

Previous applications at this address

2025 Approved
Certificate of lawfulness proposed for a hip to gable roof conversion to both sides with…
P/2025/3445
2025 Approved
Ground floor rear extension 8.00 metres deep, maximum height of 3.00 metres, 3.00 metres…
PA/2025/3442
2025 Refused
Erection of single storey extension to the outbuilding for use as gym, office and garage…
P/2025/1345
2020 Withdrawn
Erection of a replacement two storey house
P/2020/0026
2016 Refused
Erection of a replacement two storey house with habitable room in roof space and basement
P/2016/5599
2016 Withdrawn
Erection of a replacement two storey house with habitable room in roof space and basement
P/2016/2032
Within ~100m

Nearby activity

2024 Approved
49 Sutton Square, Hounslow, TW5 0JB
Erection of a part first floor rear extension to the house.
P/2024/1476
2023 Approved
49 SUTTON SQUARE, HOUNSLOW, TW5 0JB
Ground floor rear extension 6.00 metres deep, maximum height of 3.00 metres, 3.00 metres…
PA/2023/3360
2023 Approved
45 SUTTON SQUARE, HOUNSLOW, TW5 0JB
Ground floor rear extension 5.900 metres deep, maximum height of 3.000 metres, 2.500 metr…
PA/2023/1100
2023 Refused
45 SUTTON SQUARE, HOUNSLOW, TW5 0JB
Ground floor rear extension 6.00 metres deep, maximum height of 3.00 metres, 2.50 metres…
PA/2023/0417
2022 Approved
320A GREAT WEST ROAD, HOUNSLOW, TW5 0BA
Ground floor rear extension 6.00 metres deep, maximum height 3.17 metres, 2.99 metres hig…
PA/2022/2801
2022 Refused
356 GREAT WEST ROAD, HOUNSLOW, TW5 0BA
Erection of a conservatory to the rear of the house
P/2022/1571
2021 Approved
352 GREAT WEST ROAD, HOUNSLOW, TW5 0BA
Erection of single storey rear infill extension
P/2021/1245
2020 Refused
313 GREAT WEST ROAD, HOUNSLOW, TW5 0DE
Ground floor rear extension 6 metres deep, maximum height of 3 metres, 3 metres high to t…
PA/2020/2619
2020 Refused
37 SUTTON SQUARE, HOUNSLOW, TW5 0JB
Erection of a single storey rear infill extension to the house and replacement of the exi…
P/2020/1850
2019 Approved
330 GREAT WEST ROAD, HOUNSLOW, TW5 0BA
Ground floor rear extension 6.0 metre deep, maximum height of 2.830 metres, 2.830 metres…
PA/2019/4480
2019 Approved
330 GREAT WEST ROAD, HOUNSLOW, TW5 0BA
Ground floor rear extension 6.0 metre deep, maximum height of 3.0 metres, 3.0 metres high…
PA/2019/3585
2019 Approved
330 GREAT WEST ROAD, HOUNSLOW, TW5 0BA
Ground floor rear extension 6.0 metre deep, maximum height of 3.0 metres, 3.0 metres high…
PA/2019/1742
2019 Approved
348 GREAT WEST ROAD, HOUNSLOW, TW5 0BA
Erection of a part single storey rear and part single storey side extension to the house…
P/2019/1338
2019 Approved
330 GREAT WEST ROAD, HOUNSLOW, TW5 0BA
Ground floor rear extension 6.0 metre deep, maximum height of 3.0 metres, 3.0 metres high…
PA/2019/0883
2018 Refused
320B GREAT WEST ROAD HOUNSLOW LONDON TW5 0BA
Erection of a two storey house with a basement and habitable room in the roof space
P/2018/0530
2018 Approved
313 GREAT WEST ROAD HOUNSLOW TW5 0DE
Erection of single storey rear extension to the house
P/2018/0025
2017 Approved
25 SUTTON SQUARE HOUNSLOW LONDON TW5 0JB
Ground floor rear extension 4.5m deep, 2.9m high to the eaves with the maximum height of…
PA/2017/3036
2017 Approved
43 SUTTON SQUARE HOUNSLOW TW5 0JB
Ground floor rear extension 6 metres deep, maximum height of 3.095 metres, 2.850 metres h…
PA/2017/1815
2016 Approved
320 GREAT WEST ROAD HOUNSLOW TW5 0BA
Change of use from residential use (Use Class C3) to residential care (Use Class C2).
P/2016/4800
2016 Refused
332 GREAT WEST ROAD HOUNSLOW LONDON TW5 0BA
Erection of a single storey side and rear infill extensions, a front porch and a side roo…
P/2016/4334
2016 Refused
332 GREAT WEST ROAD HOUNSLOW LONDON TW5 0BA
Erection of a single storey side and rear infill extensions, a front porch and a side roo…
P/2016/0404
2025 Withdrawn
346 Great West Road,Hounslow,TW5 0BA
Certificate of lawfulness existing for the use as three self contained flats
P/2025/0696
2023 Approved
49 SUTTON SQUARE, HOUNSLOW, TW5 0JB
Certificate of lawfulness for a proposed front porch, roof extension with rear roof dorme…
P/2023/3357
2020 Approved
330 GREAT WEST ROAD, HOUNSLOW, TW5 0BA
Certificate of Lawfulness for the erection of a side dormer to the house
P/2020/0827
2019 Approved
322 GREAT WEST ROAD, HOUNSLOW, TW5 0BA
Certificate of Lawfulness for removal of existing shed and erection of a double garage wi…
P/2019/4437
Hounslow
Planning Authority Score
2.1/10
Poor
#268 of 296 councils
Relevant to this application:
Householder decisions

Hounslow is slower than most councils at deciding householder applications, ranking #203 out of 296. 47% of applications have the time limit extended, above the 41% national average. Hounslow is also one of the strictest councils - it refuses more householder applications than almost any other, with only 75% approved vs 90% nationally.

One of the strictest councils
only 75% approved vs 90% nationally
These figures are council-wide context, not a prediction for this application. View full council performance
Hounslow decision statistics
Based on MHCLG data, the year to March 2026
71%
Overall approval rate
Below avg (87%) #294 of 296
75%
Householder approved
Below avg (90%) #293 of 296
56%
Decided in 8 weeks
Below avg (63%) #203 of 296
47%
Extended time limit
Above avg (41%) #208 of 296
38%
Minor dwellings approved
82 decided (1-9 homes)
93%
Major dwellings approved
14 decided (10+ homes)
29%
Change of use approved
72 decided
1,191
Total decisions
340 refused in the year to March 2026
Source: MHCLG planning statistics · See full council rankings

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