26 Cornwall Grove, Chiswick ,London, W4 2LB Data via plota.co.uk

REGISTERED P/2026/1686 - PF-Full Applications
Extensions & alterations
Council
Hounslow 2.2/10
Date received
10 Jun 2026
Date validated
10 Jun 2026
Postcode
W4 2LB
Type
PF-Full Applications

Description

Erection of a single storey part side and rear extension to the ground floor flat. Data via plota.co.uk

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Other new applications on this street

26 Cornwall Grove, Chiswick, London, W4 2LB

Erection of a part side infill and rear extension to the ground floor flat.

P/2026/1053 - 9 Apr 2026

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Historical activity at this location

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

Within ~100m

Nearby activity

2025 Approved
First Floor Flat, 25 Cornwall Grove, Chiswick, London, W4 2LB
Erection of a rear roof extension with two front roof windows to the flat
P/2025/1833
2025 Approved
48 First Floor Flat, Eastbury Grove, Chiswick, London, W4 2JY
Erection of rear roof extension and outrigger extension including replacement first floor…
P/2025/1357
2024 Approved
40 Eastbury Grove,Chiswick,London,Hounslow,W4 2JY
Erection of a single storey rear wrap around extension to the house.
P/2024/1426
2024 Refused
1A CORNWALL GROVE, CHISWICK, W4 2LB
Side infill extension to the existing rear roof dormer extension and second floor rear ou…
P/2024/0899
2023 Refused
1A CORNWALL GROVE, CHISWICK, W4 2LB
Erection of a rear roof dormer infill extension, second floor rear outrigger extension an…
P/2023/3223
2023 Approved
76A CHISWICK LANE, CHISWICK, LONDON, W4 2LA
Erection of a single storey part rear infill extension and relocation of the front door t…
P/2023/1986
2023 Withdrawn
31 DORCHESTER GROVE, CHISWICK, LONDON, W4 2LD
Conversion of the existing terraced single house into three self-contained units
P/2023/1594
2023 Approved
23 CORNWALL GROVE, CHISWICK, LONDON, W4 2LB
Erection of a single storey rear infill and rear extension to the house.
P/2023/1713
2023 Approved
11-13 CORNWALL GROVE, CHISWICK, LONDON, W4 2LB
Erection of a single storey rear and infill extension to both properties
P/2023/1397
2023 Approved
25 BALFERN GROVE, CHISWICK, W4 2JX
Ground floor rear extension 5.6 metres deep, maximum height of 3.05 metres, 3.00 metres h…
PA/2023/1063
2022 Approved
FLAT GROUND FLOOR 30 CORNWALL GROVE, CHISWICK, LONDON, W4 2LB
Erection of a rear and part side infill extension to ground floor flat creating a small c…
P/2022/4053
2022 Refused
FLAT FIRST AND SECOND FLOOR 74 CHISWICK LANE, CHISWICK, W4 2LA
Construction of a roof terrace at second floor level to the rear of the existing first fl…
P/2022/2049
2022 Approved
17 BALFERN GROVE, CHISWICK, LONDON, W4 2JX
Erection of a single storey rear Infill extension with three roof windows
P/2022/0850
2021 Approved
FLAT GROUND FLOOR 62 CHISWICK LANE, CHISWICK, LONDON, W4 2LA
Erection of a single storey detached outbuilding in the rear end of the garden for use an…
P/2021/4984
2021 Approved
45 CORNWALL GROVE, CHISWICK, LONDON, W4 2LB
Erection of a single storey rear infill extension and replacement of rear windows.
P/2021/2408
2021 Approved
84A CHISWICK LANE, CHISWICK, W4 2LA
Erection of a part single side and rear extension following demolition of existing rear e…
P/2021/1297
2021 Refused
45 CORNWALL GROVE, CHISWICK, LONDON, W4 2LB
Erection of single storey rear infill extension, second floor extension to two storey rea…
P/2021/1167
2021 Approved
30 EASTBURY GROVE, CHISWICK, LONDON, W4 2JZ
Erection of a single storey rear and side infill extension to the house.
P/2021/0708
2020 Approved
7A DORCHESTER GROVE, CHISWICK, W4 2LD
Installation of three roof windows on the rear outrigger roof for the first floor flat.
P/2020/2985
2020 Approved
34 BALFERN GROVE, CHISWICK, W4 2JX
Erection of a single storey rear infill extension.
P/2020/2644
2016 Refused
13 DORCHESTER GROVE CHISWICK LONDON W4 2LD
Conversion of single dwelling house into two self-contained flats
P/2016/0649
2016 Refused
86 CHISWICK LANE CHISWICK LONDON W4 2LA
Erection of a single storey side infill extension, a rear roof extension incorporating a…
P/2016/0403
2016 Approved
15 CORNWALL GROVE CHISWICK LONDON W4 2LB
Replacement of roof to existing side extension with glass roof and formation of new parap…
P/2016/0306
2016 Approved
21 CORNWALL GROVE CHISWICK LONDON W4 2LB
Ground floor rear extension 4.91 metres deep, maximum height of 3 metres, 2.4 metres high…
PA/2016/0100
2016 Withdrawn
GROUND FLOOR FLATS 64-66 CHISWICK LANE CHISWICK LONDON W4 2LA
Erection of single storey rear infill extensions to both ground floor flats and basement…
P/2016/0044
Hounslow
Planning Authority Score
2.2/10
Poor
#260 of 292 councils
Relevant to this application:
Householder decisions

Hounslow is slower than most councils at deciding householder applications, ranking #198 out of 292. 46% of applications have the time limit extended, above the 40% national average. Hounslow is also one of the strictest councils - it refuses more householder applications than almost any other, with only 72% approved vs 90% nationally.

One of the strictest councils
only 72% approved vs 90% nationally
These figures are council-wide context, not a prediction for this application. View full council performance
Hounslow decision performance
Based on MHCLG data, 2025
68%
Overall approval rate
Below avg (87%) #290 of 292
72%
Householder approved
Below avg (90%) #289 of 292
57%
Decided in 8 weeks
Below avg (64%) #198 of 292
46%
Extended time limit
Above avg (40%) #193 of 292
34%
Minor dwellings approved
89 decided (1-9 homes)
82%
Major dwellings approved
11 decided (10+ homes)
24%
Change of use approved
71 decided
1,284
Total decisions
407 refused in 2025
Source: MHCLG planning statistics · See full council rankings