177, Whitton Dene, Whitton, Isleworth, TW7 7NJ Data via plota.co.uk

PA26/3753 - Section 192 Permitted Development Registered
Extensions & alterations

Proposal

Hip to gable and rear Dormer roof extensions and Installation of three Rooflights to Front Roof Slope. Data via plota.co.uk

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View original council record ↗Last checked

Application progress

✓
Received
2 Nov 2026
✓
Validated
4 Nov 2026
Decision
Expected by 28 Dec 2026

Under consideration

No decision has been issued yet. Plota predicts a decision between 18 Dec 2026 and 26 Dec 2026, from Richmond upon Thames's recent extensions.

Documents

View the documents on the council's website ↗

Site constraints 5

Air quality management area: Richmond 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 515 m away: Teddington Direct River Abstraction (TDRA), at pre-application; Inside the Hounslow built-up area; Public transport access: PTAL 2 (poor), TfL 2023, for the 100 m square; Designated open space 25 m away.
Not affected
Outside flood zones 2 and 3 · Not green belt · No listed building at the site

Checked on 5 November 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.

Sales history 1

Last sold for £270,000 in May 2006. Semi-detached house, freehold.

4 May 2006£270,000

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

Building

Floor area107 m² (1,152 sq ft)
Energy ratingB (84 out of 100), could reach A
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 July 2014, the latest held for this property. The building may have changed since. View the certificate

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Other new applications on this street

17 Sept 2026Pending

241, Whitton Dene, Whitton, Isleworth, TW7 7NJ

Single storey rear extension

PA26/3165

Nearby new applications

10 Nov 2026Pending

1 Prospect Crescent Twickenham TW2 7EB

The proposal is to convert the loft into a habitable space providing two bedroom...

PA26/3762
10 Nov 2026Pending

1 Colonial Avenue Twickenham TW2 7EE

Ground floor single storey rear and side extension

PA26/3813
9 Nov 2026Pending

21 Lyncroft Gardens,Hounslow,TW3 2QT

Ground floor rear extension 5.00 metres deep, maximum height of 2.95 metres, 2.9...

PA/2026/3161
21 Oct 2026Pending

148 Park Road,Hounslow,TW3 2HP

Erection of a single storey rear extension, installation of pvcu windows to the ...

P/2026/2983
20 Oct 2026Pending

103 hall road, isleworth, TW7 7PB

Change of use of the existing single family house (C3) to a House In Multiple Oc...

P/2026/2961
16 Oct 2026Pending

20 Lyncroft Gardens,Hounslow,TW3 2QX

Ground floor rear extension 5.00 metres deep, maximum height 2.90 metres, 2.90 m...

PA/2026/2937

Important details

Council
Richmond upon Thames
Application type
Section 192 Permitted Development
Postcode
TW7 7NJ
Received
2 Nov 2026
Validated
4 Nov 2026
Ward
Whitton Ward [WTT]
Case officer
Show
Target decision
28 Dec 2026
Applicant
Show
Agent
Show

Decision outlook

Day 7 of the 56-day target. Richmond upon Thames usually decides extensions by day 49.

Day 749 days to the 56-day target
76%decided within 8 weeks
85%approved
1,397decided in the last year

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

Consultation & key dates

Alt. reference
PP-15337967

Historical activity at this location

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

This property

Previous applications at this address

2018 Approved
Single-storey ground floor rear extension, double-storey side extension
18/3601/HOT
2018 Refused
Single-storey side/rear extension and first floor side extension
18/2571/HOT
Within ~100m

Nearby activity

2024 Approved
Garages to the North of Constable Gardens,TW7 7NH
Erection of 6x two storey semi detached dwellings consisting of two bedrooms with associa…
P/2024/2718
2025 Approved
185 Whitton Dene Whitton Isleworth TW7 7NJ
Erection of a single storey side and part front extension.
PA25/0897
2024 Refused
128 Whitton Dene, Hounslow, TW3 2JU
Demolition of existing garage and outbuilding and erection of single storey detached gara…
P/2024/1900
2024 Approved
161 Whitton Dene Whitton Hounslow TW3 2JX
T1 - Magnolia (TP 948): Current height of tree 5m, canopy spread 5m. Proposed crown reduc…
24/T0380/TPO
2024 Approved
159 Whitton Dene Whitton Hounslow TW3 2JX
Loft Conversion/Extension from Hip to Gable End with Rear Dormer/Front facing Roof Windows
24/0579/PS192
2023 Approved
183 Whitton Dene Whitton Isleworth TW7 7NJ
First floor side and roof extension and rooflights.
23/2977/HOT
2023 Approved
15 Whitton Manor Road Whitton Isleworth TW7 7NL
Back Garden (Back Boundary) T1: Ash tree - Reduce height by 2 - 2.5m through selective th…
23/T0955/TPO
2023 Refused
15 Whitton Manor Road Whitton Isleworth TW7 7NL
Back Garden (Back Boundary) T1: Ash tree - Reduce height by 2 - 2.5m through selective th…
23/T0603/TPO
2023 Refused
195 Whitton Dene Whitton Isleworth TW7 7NJ
Hip to gable and rear dormer roof extensions. Rooflights to front elevation.
23/1304/HOT
2023 Refused
193 Whitton Dene Whitton Isleworth TW7 7NJ
Rear dormer roof extension. Rooflight to front elevation.
23/1339/HOT
2022 Approved
8 Whitton Manor Road Whitton Isleworth TW7 7NL
Single storey rear extension
22/3267/PS192
2022 Approved
153 Whitton Dene Whitton Hounslow TW3 2JX
Construction of a 4m single-storey rear garden extension. Replacement of existing windows…
22/2065/HOT
2022 Refused
153 Whitton Dene Whitton Hounslow TW3 2JX
Single storey rear extension
22/1667/PS192
2022 Approved
164 WHITTON DENE, ISLEWORTH, TW7 7NG
Formation of vehicular access at front of property
P/2022/0993
2022 Approved
162 WHITTON DENE, ISLEWORTH, TW7 7NG
Formation of a vehcuilar access to the front of the flat
P/2022/0681
2021 Approved
128 WHITTON DENE, HOUNSLOW, TW3 2JU
Erection of a two storey side extension incorporating the installation of one additional…
P/2021/4550
2021 Refused
164 WHITTON DENE, ISLEWORTH, TW7 7NG
Formation of vehicular access at front of property
P/2021/4752
2021 Refused
162 WHITTON DENE, ISLEWORTH, TW7 7NG
Creation of a vehcuilar access to the front of the flat
P/2021/4494
2021 Approved
161 Whitton Dene Whitton Hounslow TW3 2JX
T1. Magnolia Front garden Mature specimen tree holding a TPO (no.T0948). To improve light…
21/T0762/TPO
2021 Approved
128 WHITTON DENE, HOUNSLOW, TW3 2JU
Ground floor rear extension 4.50 metres deep, maximum height 3.00 metres, 3.00 metres, hi…
PA/2021/3525
2016 Approved
15 Whitton Manor Road Whitton Isleworth TW7 7NL
T1 - Ash - Reduce height by 2-3m, reduce left side overhanging shed by 3-4m, reduce front…
16/T0576/TPO
2016 Refused
22 Whitton Manor Road Whitton Isleworth TW7 7NL
Single storey side/rear extension.
16/2355/HOT
2016 Approved
14 Whitton Manor Road Whitton Isleworth TW7 7NL
Proposed single storey rear extension with raised terrace
16/1610/HOT
2016 Approved
157 Whitton Dene Whitton Hounslow TW3 2JX
Proposed single storey rear extension.
16/0597/HOT
2016 Refused
199 Whitton Dene Whitton Isleworth TW7 7NJ
Proposed single storey rear extension and erection of a detached garden studio (replaceme…
16/0382/HOT
Richmond upon Thames
Planning Authority Score
4.4/10
Below average
#182 of 296 councils
Relevant to this application:
Householder decisions

Richmond upon Thames ranks #130 out of 296 councils for householder decision speed. Richmond upon Thames is also one of the strictest councils - it refuses more householder applications than almost any other, with only 82% approved vs 90% nationally.

One of the strictest councils
only 82% approved vs 90% nationally
These figures are council-wide context, not a prediction for this application. View full council performance
Richmond upon Thames decision statistics
Based on MHCLG data, the year to March 2026
81%
Overall approval rate
Below avg (87%) #257 of 296
82%
Householder approved
Below avg (90%) #268 of 296
69%
Decided in 8 weeks
Above avg (63%) #130 of 296
35%
Extended time limit
Below avg (41%) #104 of 296
68%
Minor dwellings approved
181 decided (1-9 homes)
100%
Major dwellings approved
3 decided (10+ homes)
47%
Change of use approved
17 decided
1,888
Total decisions
358 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.