Planning application
148 Tyneham Road London Wandsworth SW11 5XR
Works: Windows or glazing
Still open. Anyone can comment while the consultation period runs, and comments go to the council rather than to us.
Proposal
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
As published by the council, reference 2025/2823
Application record
- Reference
- 2025/2823
- Type
- Application for Full Permission
- Status
- On-line
- Received
- 7 Aug 2025
- Validated
- 7 Aug 2025
- Postcode
- SW11 5XR
Timeline
Dates from the published record
-
7 Aug 2025
Received by Wandsworth
-
29 Jul 2026
Added to PlanIndex
-
Decision
Awaiting decision
Decision expected by 2 October 2025, 8 weeks from validation under the statutory target for most applications. Extensions of time are common and are agreed case by case.
Wandsworth took a median of 59 days over the applications it decided in the last year.
Documents
Plans, drawings, consultee responses and the officer's report
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.
Watch members (£5 a month) open the document list from here.
Open the documentsWhat happens while it is decided
This application is with Wandsworth for determination, against a statutory target of eight weeks. Over the last year Wandsworth decided full applications in a median of 71 days. More in our guide to how long planning decisions take.
About full applications
A full application seeks permission for a complete, detailed proposal in one go, with siting, design, access and landscaping all fixed at this stage. More in our guide to planning application types.
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