Proposal
Erection of an extension to the main roof.
As published by the council, reference 2025/4631
Timeline
Dates from the published record
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22 Dec 2025
Received by Wandsworth
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5 Feb 2026
Validated
Checked as complete and ready for consideration.
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29 Jul 2026
Added to PlanIndex
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Decision
Awaiting decision
The statutory target is eight weeks for most applications and thirteen for major development. Extensions of time are common.
What happens while it is decided
The process from here
This application is with Wandsworth for determination. The council publicises it, consults neighbours and technical bodies where required, and weighs the responses against local and national planning policy.
The statutory target is eight weeks for most applications and thirteen for major development, though extensions of time are common. Comments carry most weight while the case is undecided, so check the council portal for the deadline if you want to respond.
About householder applications
How this application type works
Householder applications cover work to an existing house and its garden: extensions, loft and garage conversions, porches, outbuildings and similar alterations within the boundary of the home. They cannot be used to create a separate dwelling or change what the building is used for. Councils aim to decide them within eight weeks, and immediate neighbours are usually notified and given a chance to comment.
Nearby applications
Within 500 metres
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2026/1944 Awaiting decision
110 Tyneham Road SW11 5XR
Erection of an extension to form an additonal floor of accommodation; Erection of a part single, part two-storey rear/side extension.
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2022/5174 Granted
120 Tyneham Road SW11 5XR
Alterations erection of part single, part two storey rear/side extension. Installation of victorian tiles to front entrance.
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2026/2387 Awaiting decision
13 Ashbury Road SW11 5UN
Alterations including erection of mansard extension to main rear roof; erection of extension above part of two-storey rear addition and erection of single-storey rear/side extension.
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2026/2386 Awaiting decision
12 Birley Street SW11 5XF
Alterations including erection of mansard roof extension to main rear roof and extension over part of two-storey rear addition and erection of a single-storey rear/side extension
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2025/2823 Awaiting decision
148 Tyneham Road London Wandsworth SW11 5XR
The proposal is for the like-for-like replacement of all existing sash windows at the property. The new windows will replicate the dimensions, detailing, and materials of the originals, ensuring continuity with the building's historic character. Material and Construction The new windows will be manufactured from Accoya wood, a highly durable and dimensionally stable modified timber. Accoya is created through a non-toxic acetylation process that significantly enhances the wood???s resistance to moisture, decay, and insect attack. With a service life of 50 years above ground and 25 years in ground or freshwater, Accoya is ideally suited for external joinery, particularly in heritage settings where longevity and sustainability are important. Accoya also boasts superior paint retention and minimal shrinkage or swelling, ensuring that the traditional sash window appearance is retained with minimal ongoing maintenance. Window Specification Each new sash window will include: ??? Traditional cords and weights operation to replicate the original vertical sliding mechanism ??? 24mm argon-filled double glazed units, providing modern thermal insulation while maintaining the appearance of single glazing ??? Applied glazing bars on both faces of the glazing, with an internal spacer bar, to mimic the look of true divided panes ??? Sash horns, where present, reproduced to match existing profiles exactly ??? Factory-applied paint finish in a colour that matches the existing palette and overall streetscape The replacements will be installed within the existing structural openings, ensuring that no alterations to the brickwork or fa??ade are required. Justification and Impact Assessment The existing windows are in poor condition, exhibiting signs of timber decay, failed glazing seals, and poor thermal performance. While repair is often the preferred approach in conservation contexts, in this instance the extent of deterioration makes full replacement the most practical and sustainable option. The proposed replacements have been designed with close attention to traditional details and use high-quality materials in keeping with the original construction. By using Accoya wood and replicating original joinery features, the proposals respect the architectural integrity of the building and the conservation area. The visual impact of the new windows will be neutral or positive. The like-for-like replacements will preserve the original design intent while offering improved energy efficiency and longer-term resilience. This aligns with the conservation objectives set out in Wandsworth Council???s guidance and the National Planning Policy Framework (NPPF), particularly paragraphs 199???206, which support the sensitive adaptation of heritage assets. SJB Sash Windows Specialist Ltd, 4, The Market, Wrythe Lane, Carshalton, Surrey, SM5 1AG www.sjbsashwindows.co.uk Email: [email protected] Office 0208 296 9487 Registered in United Kingdom, Number: 10453404
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2024/3220 Granted
8 Sabine Road SW11 5LW
Installation of replacement timber double glazed windows to front elevation and first floor rear elevation.
Other householder applications
In Wandsworth
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2026/2768 Awaiting decision
125 Moyser Road SW16 6SJ
Proposed ground floor rear extension, internal alterations and all associated works.
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2026/1929 Granted
36 Brudenell Road SW17 8DA
Alterations including erection of single-storey rear extension.
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2026/2737 Awaiting decision
10 Swaffield Road SW18 3AH
Erection of single-storey rear/side extension.
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2026/2734 Awaiting decision
22 Bellamy Street SW12 8BU
Ground floor wraparound extension.
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2026/2029 Granted
67 Bangalore Street SW15 1QF
Alterations including erection of extension above rear part of two-storey rear addition