89 Thornbury Road,Isleworth,TW7 4NL Data via plota.co.uk

P/2026/2873 - Householder Applications REGISTERED
Extensions & alterations

Proposal

Formation of vehicular access to the front of the house with alterations to the front wall and rear fencing. Data via plota.co.uk

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View original council record ↗Last checked

Application progress

✓
Received
8 Oct 2026
Decision
Expected by 3 Dec 2026

Under consideration

No decision has been issued yet. Plota predicts a decision around 1 Dec 2026, from Hounslow's recent extensions.

Comments are open until 6 Nov 2026

Comment on this application ↗

Documents 6

Statements & assessments 1

PDF Bob Trimble_20250803_172827.pdf P-Statement Other · 8 Oct 2026 View ↗

Plans & drawings 1

PDF Bob Trimble_20250803_172359.pdf P-Location Plan · 8 Oct 2026 View ↗

Application forms 1

PDF ApplicationFormRedacted.pdf P-Planning Application Form · 8 Oct 2026 View ↗

Other documents 3

PDF Bob Trimble_20250803_174204.pdf P-Proposed Other · 8 Oct 2026 View ↗ PDF Thornbury Rd (89).pdf P-Proposed Site · 8 Oct 2026 View ↗ PDF Thornbury Rd (89) - proposed.pdf P-Proposed Other · 8 Oct 2026 View ↗

All documents on the council site ↗

Site constraints 7

Spring Grove conservation area
Demolition needs planning permission and permitted development is restricted.
The council must give weight to preserving or enhancing the area's character and appearance. Not every council has published its boundaries as open data.
Council document ↗
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 Named permitted development rights are withdrawn here.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
1 listed building within 150 m; Inside the Hounslow built-up area; Public transport access: PTAL 2 (poor), TfL 2023, for the 100 m square; National infrastructure project 1475 m away: Teddington Direct River Abstraction (TDRA), at pre-application.
Not affected
Outside flood zones 2 and 3 · Not green belt · No scheduled monument at the site

Checked on 13 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.

Sales history 2

Last sold for £945,000 in April 2022. Detached house, freehold.

20 April 2022£945,000
5 April 2012£565,000

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

Building

Floor area149 m² (1,604 sq ft)
Energy ratingD (58 out of 100), could reach B
PropertyDetached house, 7 habitable rooms
Built1900 to 1929
HeatingBoiler and radiators, mains gas
WallsSolid brick, as built, no insulation (assumed)

From the energy performance certificate lodged in August 2021, the latest held for this property. The building may have changed since. View the certificate

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Important details

Council
Hounslow
Application type
Householder Applications
Postcode
TW7 4NL
Received
8 Oct 2026
Validated
8 Oct 2026
Ward
Osterley & Spring Grove
Applicant
Show

Decision outlook

Day 11 of the 56-day target. Hounslow usually decides extensions by day 54.

Day 1145 days to the 56-day target
78%decided within 8 weeks
81%approved
924decided in the last year

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

Consultation & key dates

Consultation
12 Oct 2026
Comments by
6 Nov 2026
Site or press notice
16 Oct 2026
Statutory expiry
3 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 Refused
89 Thornbury Road, Isleworth, TW7 4NL
Formation of a vehicular access to the front of the house, erection of a front wall and g…
P/2025/3749
2025 Approved
10, Fairacre Thornbury Road, Isleworth, TW7 4NJ
Fell dangerous tree (5 day dangerous tree). Fell leaning Elder.
P/2025/3358
2025 Withdrawn
89 Thornbury Road, Isleworth, TW7 4NL
Formation of vehicular access, front boundary wall and new rear boundary fence to the hou…
P/2025/2392
2025 Approved
104 Thornbury Road, Isleworth, TW7 4NH
Works to trees in a Conservation Area - 1 X T1 - Garrya eliptica remove 3 left limbs and…
P/2025/0821
2024 Approved
101 Thornbury Road, Isleworth, TW7 4NL
Works to tree within a conservation area: Front Garden -T1 False Acacia (Robinia pseudoac…
P/2024/3626
2024 Approved
99 Thornbury Road, Isleworth, TW7 4NL
Works to tree within a conservation area: T1 Purple Leafed Plum (Prunus cerasifera 'Pissa…
P/2024/2014
2024 Approved
95 Thornbury Road, Isleworth, TW7 4NL
Works to an Ash Tree (T1) TPO 584 within Conservation Area, Front garden on the Southern…
P/2024/1859
2024 Withdrawn
95 THORNBURY ROAD ISLEWORTH TW7 4NL
Works to an Ash Tree (T1) TPO 584 within Conservation Area by reducing the crown 3-4m to…
P/2024/0454
2023 Approved
104 THORNBURY ROAD, ISLEWORTH, TW7 4NH
Erection of a single storey rear extension to the house
P/2023/1011
2022 Approved
89 THORNBURY ROAD, ISLEWORTH, TW7 4NL
Erection of a single storey front / side extension and single storey rear extension with…
P/2022/2886
2022 Approved
38 MORETON AVENUE, ISLEWORTH, TW7 4NW
Removal of one unidentified tree (T1) on the edge of the parking space adjacent to 20 St…
P/2022/2934
2022 Approved
OPEN AREAS KILLBURY CLOSE AND 100D THORNBURY ROAD, ISLEWORTH, TW7 4NH
T2: Norway Maple Tree - Pollard by approx. 4m from ground level; T3: Dead Ash tree - Fell…
P/2022/2248
2022 Approved
MARBAIX GARDENS, ISLEWORTH, TW7 4FD
T102 - Cedar: Remove dead wood and broken / storm-damaged branches; T103 - Cedar: Remove…
P/2022/2870
2022 Refused
89 THORNBURY ROAD, ISLEWORTH, TW7 4NL
Extension of existing front porch extension, replacement of front windows, addition of ne…
P/2022/2126
2022 Withdrawn
1-35 OAKLEY CLOSE, ISLEWORTH, TW7 4HY
Works to fir tree with a conservation area
P/2022/1656
2022 Approved
89 THORNBURY ROAD, ISLEWORTH, TW7 4NL
Works to Trees in a Conservation Area Magnolia (T1) - Crown reduce by 2m to leave a crown…
P/2022/1731
2021 Approved
1-20 DEBORAH CLOSE, ISLEWORTH, TW7 4NY
Works to two trees on site in conservation area. T96 Prunus Group located on grass area/b…
P/2021/4220
2021 Approved
101 THORNBURY ROAD, ISLEWORTH, TW7 4NL
Works to trees within a conservation area - English Oak (T1) to reduce by 4m back to most…
P/2021/3767
2020 Approved
COMMUNAL TREES AT MARBAIX GARDENS, ISLEWORTH, TW7 4FD
Works to over 300 trees on site. T51 (11 trees) remove dying trees and sever ivy. G2 (200…
P/2020/4165
2020 Approved
THORNBURY PARK MARBAIX GARDENS, ISLEWORTH, TW7 4FD
5 day tree app for felling two dead trees T1 - Plum and T2 - Pear in park at rear of prop…
P/2020/1663
2017 Approved
95 THORNBURY ROAD ISLEWORTH TW7 4NL
Works to an Ash tree within Tree Preservation Order 584
P/2017/0019
2016 Approved
95 THORNBURY ROAD ISLEWORTH TW7 4NL
Retrospective application for replacement of a chimney
P/2016/5363
2016 Refused
25 MORETON AVENUE ISLEWORTH TW7 4NW
Removal of exisiting canopy over front door and erection of a new porch
P/2016/3859
2016 Approved
DEBORAH CLOSE ISLEWORTH LONDON
Works to various trees within TPO 105 T 091 - Elderberry, to fell T 094 - Almond, to redu…
P/2016/2406
2016 Refused
95 THORNBURY ROAD ISLEWORTH LONDON TW7 4NL
Removal of a tree in front garden in a conservation area
P/2016/1457
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

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.