19B Borough Road, Isleworth, TW7 5DT Data via plota.co.uk

P/2025/3287 - PF-Full Applications Approved

Proposal

Erection of a detached outbuilding at the rear of the garden Data via plota.co.uk

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View original council record ↗Last checked

Application progress

✓
Received
31 Oct 2025
✓
Approved
20 Mar 2026

Approved on 20 Mar 2026 · Last checked 10 Oct 2026

Documents 7

Decision & officer reports 2

PDF P-Delegated Report P-Delegated Report · 20 Mar 2026 View ↗ PDF DECTP2 P-Decision Notice · 20 Mar 2026 View ↗

Statements & assessments 1

PDF Design and Access Statement 19B Borough Road.pdf P-Design and Access Statement · 31 Oct 2025 View ↗

Plans & drawings 1

PDF Proposed all (revised - received 23/12/2025) P-All in one Plans Proposed · 24 Dec 2025 View ↗

Application forms 1

PDF ApplicationFormRedacted.pdf P-Planning Application Form · 31 Oct 2025 View ↗

Other documents 2

PDF (revised - received 23/12/2025) P-Proposed Block · 24 Dec 2025 View ↗ PDF Fire_Safety_Statement_19B_Borough_Road.docx P-Published Fire Safety · 31 Oct 2025 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 Named permitted development rights are withdrawn here.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 1b (very poor), TfL 2023, for the 100 m square; National infrastructure project 1534 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 2 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 £425,000 in November 2015. Flat or maisonette, leasehold.

30 November 2015£425,000

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

Building

Floor area90 m² (969 sq ft)
Energy ratingC (76 out of 100)
PropertySemi-detached maisonette, 4 habitable rooms
Built1900 to 1929
HeatingBoiler and underfloor heating, mains gas
WallsSolid brick, as built, no insulation (assumed)

From the energy performance certificate lodged in March 2021, 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

26 Aug 2026Approved

17 Borough Road,Isleworth,TW7 5DT

Works to a tree in TPO 425 - T1: Silver birch tree reduce height and sides by 2m...

P/2026/2438
25 Jun 2026Approved

45 Borough Road, Isleworth, TW7 5DT

Works to Cherry (T1) within a conservation area. Reduce height by up to 3 metres...

P/2026/1890
15 Jul 2026Approved

9 Borough Road,Isleworth,TW7 5DY

Erection of a single storey rear extension.

P/2026/2047

Nearby new applications

3 Nov 2026Pending

101 Thornbury Road, Isleworth, TW7 4NL

Works to two trees within a conservation area. T1 Oak (Quercus spp.). Crown redu...

P/2026/3109
3 Nov 2026Pending

21 Church Road,Isleworth,TW7 4PR

Erection of a rear roof extension with hip to gable conversion with two front ro...

P/2026/3106
2 Nov 2026Pending

23 Redesdale Gardens, Isleworth, TW7 5JA

Erection of a rear roof extension with five roof windows to the house.

P/2026/3075
2 Nov 2026Pending

150 Wood Lane,Isleworth,TW7 5EQ

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

P/2026/3077
29 Oct 2026Pending

Flat 2, 117 Wood Lane, Isleworth,TW7 5EG

Conversion of the garage to a habitable room for flat 2.

P/2026/2967
23 Oct 2026Pending

269 - 271 Jersey Road, Isleworth, TW7 4RF

Works to three trees within a conservation area. Rear garden: Cedar (T6) - Fell...

P/2026/2833

Important details

Council
Hounslow
Application type
PF-Full Applications
Postcode
TW7 5DT
Received
31 Oct 2025
Validated
31 Oct 2025
Ward
Osterley & Spring Grove
Decision
APPROVED
Decision date
20 Mar 2026
Applicant
Show

How this decision compares

Decided in 140 days from validation, 84 days slower than Hounslow's median of 56 for full applications. Approved, as 68% of full applications here are.

52%decided within 8 weeks
68%approved
403decided in the last year

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

Consultation & key dates

Consultation
4 Nov 2025
Comments by
25 Nov 2025
Statutory expiry
26 Dec 2025

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

2020 Approved
Cut down holly tree (T1) and buddleia tree (T2) in rear garden in conservation area.
P/2020/1409
2017 Refused
Erection of a single storey side and part rear extension to the ground floor flat (amende…
P/2017/2172
Within ~100m

Nearby activity

2025 Approved
19A Borough Road, Isleworth, TW7 5DT
Installation of replacement double glazed windows to the front elevation of the first flo…
P/2025/3524
2025 Withdrawn
19A Borough Road, Isleworth, TW7 5DT
Replace double glazed windows 'like for like'
P/2025/3294
2025 Approved
47 Ridgeway Road, Isleworth, TW7 5LG
Works to tree in a Conservation Area: T1 Silver Birch – Rear garden, northern corner – Fe…
P/2025/2630
2025 Approved
11A Osterley Crescent, Isleworth, TW7 5LF
Works to a tree in a Conservation Area: T1 - Conifer tree (Chamaecyparis Obtusa), rear ga…
P/2025/1447
2025 Approved
53 Borough Road, Isleworth, TW7 5DT
Works to trees within a conservation area: T1 Silver Birch – Rear garden – Crown reduce b…
P/2025/1429
2025 Approved
51 Borough Road, Isleworth, TW7 5DT
Works to a tree within a conservation area – T1 Acacia (Robinia) – Front garden - Reduce…
P/2025/1428
2025 Approved
33 Borough Road, Isleworth, TW7 5DT
Works to trees in a Conservation Area - G1 - Purple Leafed Plum Prunus cerasifera 'Pissar…
P/2025/0674
2025 Approved
11A Osterley Crescent, Isleworth, TW7 5LF
Erection of a part two storey part single storey side extension to the house
P/2025/0089
2025 Approved
7 Osterley Crescent, Isleworth, TW7 5LF
Works to two trees within a conservation area: Salix Goat Willow - reduce height by 3 met…
P/2025/0746
2025 Approved
84 College Road, Isleworth, TW7 5DS
Works to trees in Conservation Area: T1 Pine – Fell; T2 Pine - Remove the left limb of th…
P/2025/0053
2024 Approved
17 Borough Road, Isleworth, TW7 5DT
Works to tree within a conservation area: T1 (Bay) Fell to ground level
P/2024/3482
2024 Approved
31 Borough Road, Isleworth, TW7 5DT
Works to tree within a conservation area: T1 Magnolia - Reduce crown by 1-1.5m. Final hei…
P/2024/3223
2023 Approved
78 COLLEGE ROAD, ISLEWORTH, TW7 5DS
Works to two Lime Trees (G1) within a Conservation Area by thinning of the crowns by 20-2…
P/2023/3558
2023 Approved
15 BOROUGH ROAD, ISLEWORTH, TW7 5DT
Works to a tree within a conservation area - Fir tree to fell
P/2023/1170
2023 Approved
37 BOROUGH ROAD, ISLEWORTH, TW7 5DT
Felling of Acacia tree in a conservation area at the rear end of the property
P/2023/0812
2022 Approved
45 BOROUGH ROAD, ISLEWORTH, TW7 5DT
Erection of a single storey rear extension following demolition of the existing conservat…
P/2022/1372
2022 Approved
51 BOROUGH ROAD, ISLEWORTH, TW7 5DT
Works to a Pseudo Acacia Tree (T1) within a conservation area. Pollard down to just above…
P/2022/0031
2021 Approved
17 BOROUGH ROAD, ISLEWORTH, TW7 5DT
Works to trees in a Conservation Area. T1. Silver Birch, pruning back the lowest lateral…
P/2021/4725
2021 Approved
22 OSTERLEY CRESCENT, ISLEWORTH, TW7 5LF
Works to a Sycamore Tree in a conservation area: Pollard the crown at the height of 7 met…
P/2021/4425
2021 Approved
20 OSTERLEY CRESCENT, ISLEWORTH, TW7 5LF
Felling of a Silver Birch (T1) within a conservation area and replacement with Crab Apple…
P/2021/3380
2016 Approved
9 OSTERLEY CRESCENT ISLEWORTH TW7 5LF
Erection of a single storey side and rear extension and hip to gable and rear roof extens…
P/2016/2991
2016 Approved
27 BOROUGH ROAD ISLEWORTH TW7 5DT
Removal of a T1- Horse Chestnut
P/2016/2885
2016 Approved
47 RIDGEWAY ROAD ISLEWORTH LONDON TW7 5LG
Erection of a single storey rear extension to the house
P/2016/0218
2016 Withdrawn
33 BOROUGH ROAD ISLEWORTH LONDON TW7 5DT
Single storey rear extension
P/2016/1346
2016 Approved
3 OSTERLEY CRESCENT ISLEWORTH LONDON TW7 5LF
Erection of a single storey rear extension, a part first floor side extension and a rear…
P/2016/1615
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.

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.