51 Caldervale Road London SW4 9LY

Awaiting decision 26/00717/FUL
Extensions & alterations
Council
Lambeth 2.9/10
Date received
9 Mar 2026
Date validated
9 Mar 2026
Postcode
SW4 9LY

Description

Erection of rear mansard roof extension and installation of 3 roof lights to the front roof slope - Flat B

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Historical activity at this location

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

This property

Previous applications at this address

2020 Approved
Variation of condition 2 (approved plans) of Planning Permission 20/00200/FUL (Erection o…
20/01839/VOC
2020 Approved
Erection of a single storey rear and side extension with a courtyard to the ground floor…
20/00200/FUL
2019 Refused
Erection of a single storey rear and side extension with courtyard to the ground floor fl…
19/03106/FUL
Within ~100m

Nearby activity

2025 Approved
34 Elms Crescent London SW4 8QZ
Erection of a single storey rear infill extension. Alterations to pitched roof to north e…
25/00292/FUL
2025 Approved
31 Caldervale Road London SW4 9LY
Enlargement of the existing rear dormer and replacement of the existing dormer window wit…
25/02729/FUL
2025 Approved
37 Leppoc Road London SW4 9LS
Erection of a single storey ground floor side infill extension with the alteration of an…
25/01792/FUL
2025 Approved
16 Leppoc Road London Lambeth SW4 9LT
Erection of a mansard roof extension to rear outrigger, including the installation of 2 s…
25/01382/FUL
2025 Approved
16 Leppoc Road London SW4 9LT
Excavation and enlargement of existing basement with the formation of a front lightwell.
25/00749/FUL
2024 Approved
26 Elms Crescent London Lambeth SW4 8RA
Erection of a rear extension at first floor level, together with the installation of a 0…
24/03829/FUL
2024 Approved
15 Leppoc Road London SW4 9LS
Replacement of all existing ground floor front and rear PVCu framed windows and existing…
24/03780/FUL
2024 Approved
18B Leppoc Road London SW4 9LT
Erection of an 'L' shaped rear mansard roof extension and the installation of three roofl…
24/03566/FUL
2024 Approved
52 Leppoc Road London SW4 9LT
Widening of existing openings at ground and first floor rear/side elevation together with…
24/02985/FUL
2024 Approved
18 Caldervale Road London SW4 9LZ
Erection of a single storey ground floor rear and side infill extensions. Erection of a r…
24/02563/FUL
2024 Withdrawn
26 Elms Crescent London Lambeth SW4 8RA
Erection of a first floor rear extension.
24/01499/FUL
2024 Approved
88 Abbeville Road London Lambeth SW4 9NA
Erection of a single storey ground floor rear/side infill extension to create a wrap-arou…
24/01862/FUL
2024 Refused
94 Abbeville Road London Lambeth SW4 9NA
Erection of an open-sided gazebo structure to the rear at ground floor level (Retrospecti…
24/01413/FUL
2024 Approved
21 Caldervale Road London SW4 9LY
Application for a Lawfulness (Proposed) with respect to the construction of rear dormer a…
24/00128/LDCP
2023 Approved
21 Caldervale Road London Lambeth SW4 9LY
Erection of a single storey side and rear infill extension.
23/02967/FUL
2023 Approved
40 Elms Crescent London SW4 8QZ
Erection of a single storey rear and side extension.
23/02940/FUL
2023 Approved
4 Leppoc Road London SW4 9LT
Conversion of the property into two residential units with the erection of a single store…
23/00845/FUL
2023 Approved
20 Caldervale Road London SW4 9LZ
Erection of a single storey ground floor rear and side infill extension. Erection of a re…
23/01055/FUL
2023 Approved
17 Caldervale Road London Lambeth SW4 9LY
To crown reduce / thin 2 x Lime trees to rear of property by 40%.
23/00775/TPO
2022 Approved
94 Abbeville Road London Lambeth SW4 9NA
Erection of a single storey side extension with a courtyard to the ground floor flat, tog…
22/04458/FUL
2016 Approved
17 Franconia Road London Lambeth SW4 9NB
Erection of a ground floor single storey rear/side infill extension with the installation…
16/01397/FUL
2016 Approved
33 Leppoc Road London SW4 9LS
Erection of one storey side extension at ground floor level together with the excavation…
16/02350/FUL
2016 Withdrawn
1 Caldervale Road London SW4 9LY
Erection of ground floor rear extension and extension at rear first floor with the creati…
16/02500/FUL
2016 Approved
18 Elms Crescent London Lambeth SW4 8RA
Erection of a single storey rear extension at the first floor level
16/01442/FUL
2016 Approved
45 Caldervale Road London SW4 9LY
Erection of a single storey rear extension and change of window to door in main rear wall.
16/01048/FUL
Lambeth
Planning Authority Score
2.9/10
Poor
#238 of 292 councils
Relevant to this application:
Householder decisions

Lambeth ranks #173 out of 292 councils for householder decision speed. 46% of applications have the time limit extended, above the 40% national average. Lambeth is also one of the strictest councils - it refuses more householder applications than almost any other, with only 83% approved vs 90% nationally.

One of the strictest councils
only 83% approved vs 90% nationally
These figures are council-wide context, not a prediction for this application. View full council performance
Lambeth decision performance
Based on MHCLG data, 2025
80%
Overall approval rate
Below avg (87%) #260 of 292
83%
Householder approved
Below avg (90%) #256 of 292
61%
Decided in 8 weeks
Below avg (64%) #173 of 292
46%
Extended time limit
Above avg (40%) #194 of 292
51%
Minor dwellings approved
53 decided (1-9 homes)
88%
Major dwellings approved
8 decided (10+ homes)
40%
Change of use approved
52 decided
1,725
Total decisions
347 refused in 2025
Source: MHCLG planning statistics · See full council rankings