108 Syon Lane, Isleworth, TW7 5NJ Data via plota.co.uk

Decided PA/2026/2043 - Prior Approval Larger Home Extension
Extensions & alterations
Council
Hounslow 2.1/10
Date received
10 Jul 2026
Date validated
10 Jul 2026
Decision date
13 Aug 2026
Postcode
TW7 5NJ
Type
Prior Approval Larger Home Extension

Description

Ground floor rear extension 6.00 metres deep, maximum height 3.40 metres, 2.90 metres high to the eaves. Data via plota.co.uk

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Last checked

Site constraints 3

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 Named permitted development rights are withdrawn here.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
Inside the Hounslow built-up area.
Not affected
Outside flood zones 2 and 3 · Not green belt · No scheduled monument at the site

Checked on 11 September 2026. Historic England, the Environment Agency, Natural England 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

26 May 2026Approved

191 Syon Lane, Isleworth, TW7 5PU

Works to tree in a Conservation Area. Removal of 1 X Magnolia tree which is loca...

P/2026/1413
7 May 2026Pending

Nishkam School West London,152 Syon Lane, Isleworth, TW7 5PN

Construction of a peace garden in the school grounds, including the addition of ...

P/2025/1944

Nearby new applications

4 Sept 2026Pending

115 Roxborough Avenue, Isleworth, TW7 5HH

Erection of a single storey rear extension, front porch extension, part side ext...

P/2026/2474
28 Aug 2026Pending

68 Parkwood Road, Isleworth,TW7 5HD

Removal of Condition 4 (construction method Statement) to planning permission P...

P/2026/2447
27 Aug 2026Pending

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
7 May 2026Pending

Nishkam School West London,152 Syon Lane, Isleworth, TW7 5PN

Construction of a peace garden in the school grounds, including the addition of ...

P/2025/1944
24 Jul 2026Pending

851-853 Great West Road, Isleworth, TW7 5PD

Erection of a single storey rear extension

P/2026/2034
24 Jul 2026Pending

17 Crowntree Close, Isleworth, TW7 5PF

Erection of a side roof extension with three roof windows on the other side of t...

P/2026/2151

Historical activity at this location

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

Within ~100m

Nearby activity

2025 Approved
102 Syon Lane, Isleworth, TW7 5NJ
Erection of a part first floor rear extension to the house and installation of render on…
P/2025/2085
2025 Approved
102 Syon Lane, Isleworth, TW7 5NJ
Certificate of lawfulness proposed for a hip to gable conversion and the erection of rear…
P/2025/0645
2025 Approved
102 Syon Lane, Isleworth, TW7 5NJ
Ground floor rear extension 6.00 metres deep, maximum height of 3.27 metres, 2.96 metres…
PA/2025/0703
2025 Approved
55 Syon Park Gardens, Isleworth, TW7 5NE
Erection of a single storey rear extension and part first floor rear extension to the hou…
P/2025/0193
2025 Approved
112A Syon Lane, Isleworth, TW7 5NJ
Certificate of lawfulness for the existing first floor rear extension to the house.
P/2025/0254
2025 Approved
112A Syon Lane, Isleworth, TW7 5NJ
Certificate of lawfulness for the proposed erection of a rear roof extension with hip to…
P/2025/0154
2024 Approved
112A Syon Lane, Isleworth, TW7 5NJ
Certificate of lawfulness for a hip to gable conversion and erection of a rear roof exten…
P/2024/3650
2024 Approved
55 Syon Park Gardens, Isleworth, TW7 5NE
Certificate of Lawfulness for the proposed erection of a rear roof extension with hip to…
P/2024/3172
2023 Approved
43 SYON PARK GARDENS, ISLEWORTH, TW7 5NE
Certificate of Lawfulness for the erection of a rear roof extension with a hip to gable c…
P/2023/1674
2022 Approved
104 SYON LANE, ISLEWORTH, TW7 5NJ
Retrospective application for a single storey outbuilding to the rear of the house.
P/2022/1097
2021 Approved
104 SYON LANE, ISLEWORTH, TW7 5NJ
Erection of a part first floor rear extension
P/2021/3982
2021 Approved
104 SYON LANE, ISLEWORTH, TW7 5NJ
Ground floor rear extension 6 metres deep, maximum height of 2.80 metres, 2.80 metres hig…
PA/2021/2710
2020 Approved
FORMER MACFARLANE SPORT FIELD ADJACENT TO SKY CENTRAL MACFARLANE LANE, ISLEWORTH, TW7 5DB
Use of the site for continued sports and recreation along with the construction of a new…
P/2020/3161
2019 Approved
116 SYON LANE, ISLEWORTH, TW7 5NJ
Certificate of Lawfulness for the erection of hip to gable and rear roof extension with t…
P/2019/3079
2019 Approved
114 SYON LANE, ISLEWORTH, TW7 5NJ
Certificate of Lawfulness for the erection of hip to gable and rear roof extension with t…
P/2019/3078
2019 Approved
104 SYON LANE, ISLEWORTH, TW7 5NJ
Certification of lawfulness for insertion of bi-folding doors on the ground floor and a J…
P/2019/3271
2019 Withdrawn
114-116 SYON LANE, ISLEWORTH, TW7 5NJ
Certificate of Lawfulness for the erection of hip to gable and rear roof extensions with…
P/2019/2170
2018 Approved
118 SYON LANE ISLEWORTH LONDON TW7 5NJ
Erection of a single storey rear extension to the house.
P/2018/0786
2018 Approved
118 SYON LANE ISLEWORTH LONDON TW7 5NJ
Ground floor rear extension 6m deep, 3m high to the eaves with the maximum height of 3.3m.
PA/2018/0482
2017 Approved
47 SYON PARK GARDENS ISLEWORTH TW7 5NE
Ground floor rear extension 3.65 metres deep, maximum height of 3.57 metres, 2.37 metres…
PA/2017/0310
2017 Approved
47 SYON PARK GARDENS ISLEWORTH TW7 5NE
Certificate of Lawfulness for erection of a rear roof extension incorporating hip to gabl…
P/2017/0305
2016 Withdrawn
110 SYON LANE ISLEWORTH TW7 5NJ
Erection of a single storey rear extension to the house
P/2016/3375
2016 Approved
110 SYON LANE ISLEWORTH TW7 5NJ
Ground floor rear extension 4.5 m deep, with the maximum height of 3.6 m and 2.4m high to…
PA/2016/3397
2016 Approved
100 SYON LANE ISLEWORTH LONDON TW7 5NQ
Certifiate of Lawfulness for erection of a rear roof extension with hip to gable conversi…
P/2016/2096
2016 Approved
114-116 SYON LANE ISLEWORTH LONDON TW7 5NJ
Joint application for the erection of a single storey rear extension to both the houses
P/2016/0700
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