Planning application
20 St Alphonsus Road London SW4 7AS
Works: Windows or glazing
Permission granted. Work must normally begin within three years of the decision or the permission lapses.
Proposal
Certificate of Lawful Development (Proposed) with respect to retrofitting of existing property including; loft insulation, draught proofing, internal wall insulation, insulated doors, and replacement of existing window to double-glazing windows.
As published by the council, reference 25/03538/LDCP
Application record
- Reference
- 25/03538/LDCP
- Type
- Certificate of Lawful Use proposed
- Status
- Decided
- Decision
- Grant Permission
- Received
- 12 Nov 2025
- Validated
- 12 Nov 2025
- Decided
- 7 Jan 2026
- Ward
- Clapham East
- Decision by
- Delegated Decision
- Postcode
- SW4 7AS
Timeline
Dates from the published record
-
12 Nov 2025
Received by Lambeth
-
7 Jan 2026
Decision issued: Grant Permission
-
10 Aug 2026
Added to PlanIndex
Who's behind it
Company information only, from the register and Companies House
Agent on file, a design practice
9 applications on PlanIndex · across 3 councils
Trade members see who it is, their full track record, and every application they have filed.
See who's behind itDocuments
Plans, drawings, consultee responses and the officer's report
10 documents on file for this application
A planning file usually holds the application form, drawings and site plans, consultee responses, the officer's report and the decision notice.
Trade members open them from here.
Open the documentsWhat this grant of permission means
Lambeth granted permission on 7 January 2026, subject to any conditions on the decision notice. Work must normally begin within three years or the permission lapses. More in our guide to what happens after a planning decision.
About lawful development applications
A lawful development certificate is a legal determination that existing or proposed works do not need planning permission; the merits of the scheme are not considered. More in our guide to planning application types.
Nearby applications
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Central Garden Area Crescent Grove London
Central Garden Area Crescent Grove London: Please see Tree Condition Survey. Officer note: The only text entered by the notifier was Please see Tree Condition Survey. This is not a valid description of proposed tree works but a request for the Local Planning Authority to interpret a supporting report. In accordance with section 211 of the Town and Country Planning Act 1990 and Regulation 5 of the Town and Country Planning Tree Preservation England Regulations 2012 a valid notice must clearly specify each tree and the precise works proposed. The Council does not determine or register notices by reference to external surveys or reports. Submission invalid and withdrawn from validation.
Withdrawn Trees 3 docs -
47 St Alphonsus Road London SW4 7AX
Installation of an external wall insulation with render on the flank (east) wall.
Granted Full applications 10 docs -
33 Crescent Grove London SW4 7AF
Approval of details pursuant to conditions 5 (brick sample) & 6 (window and architrave) of planning permission 25/00348/FUL (Erection of a second floor side extension) granted on 24.04.2025.
Granted Conditions Extension Windows or glazing 8 docs -
33 Crescent Grove London SW4 7AF
Approval of details pursuant to conditions 4 (window and architrave) & 5 (brick sample) of planning permission 25/00349/LB (Erection of a second floor side extension) granted on 24.04.2025.
Granted Conditions Extension Windows or glazing 9 docs -
St Marys Hall Great Acre Court London SW4 7BA
83% historically approved · decision due ~12 Aug
Approval of details pursuant to part b only of condition 8 (details of windows) of planning permission ref. 22/01981/FUL (Refurbishment and conversion of St Mary's Hall (Use Class F1) to provide community hall (Use Class F2(b)) and a gym (Use Class E(d)) at ground floor level and 9 residential units (Use Class C3) at first and second floor level, including erection of an additional storey, the replacement of the ground floor side extension, plus the provision of refuse and cycle storage, along with other associated works.), granted on 04.04.2024.
Awaiting decision Extension Windows or glazing 7 docs -
St Marys Hall Great Acre Court London SW4 7BA
87% historically approved · decision due ~4 Jun
Variation of Conditions 17 (opening hours) of planning permission 22/01981/FUL (Refurbishment and conversion of St Mary's Hall (Use Class F1) to provide community hall (Use Class F2(b)) and a gym (Use Class E(d)) at ground floor level and 9 residential units (Use Class C3) at first and second floor level, including erection of an additional storey, the replacement of the ground floor side extension, plus the provision of refuse and cycle storage, along with other associated works) granted 04.04.2024. Original condition: The gymnasium use herby permitted shall not operate other than within the following times: 06.00-20.00 Monday to Friday 08.00-14.00 Saturdays 09.00-14.00 Sundays and public holidays Variation sought: The gymnasium use hereby permitted shall not operate other than within the following times: 06.00-21.00 Monday to Fridays 08.00-20.00 Saturdays, Sunday and public holidays
Awaiting decision Amendments Extension 4 docs
Other lawful development applications
In Lambeth
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26/01447/LDCP Granted
2 Stannary Street London SE11 4AA
Application for a Certificate of Lawful Development (Proposed) with respect to remedial works to fix selected sliding glazed door panels shut and associated alterations to the existing glazing system within the existing curtain wall openings of the penthouse flat.
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26/01071/LDCP Withdrawn
36 Elms Road London Lambeth SW4 9EX
Certificate of Lawful Development (Proposed) with respect to the erection of side and rear 'box' roof extensions including a side roof light and removal of a chimney.
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26/00455/LDCP Granted
129 Hydethorpe Road London SW12 0JF
Application for Certificate of Lawful Development (Proposed) with respect to the erection of a rear dormer roof extension and installation of new rooflights to the front roof slope.
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26/01485/LDCP Granted
88 Ballater Road London SW2 5QP
Application for a Certificate of Lawful Development (Proposed) with respect to erection of a rear dormer roof extension and installation of 2 x rooflights to existing roof at front elevation and 1 x rooflight to existing rear outrigger roof
-
26/01478/LDCP Refused
142 Rosendale Road London SE21 8LG
Certificate of Lawful Development (Proposed) with respect to the deconversion of existing three self-contained flats into one single dwellinghouse.