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Planning application

SECOND FLOOR FLAT, 37B DEVONSHIRE ROAD, LONDON, SE23 3EN

Awaiting decision Lewisham DC/26/144743 Full Planning Permission

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

Replacement of existing window units with timber framed units at the Second Floor Flat, 37B Devonshire Road SE23.

As published by the council, reference DC/26/144743

Application record

Reference
DC/26/144743
Type
Full Planning Permission
Status
Registered
Received
14 Jul 2026
Validated
4 Aug 2026
Ward
Forest Hill
Postcode
SE23 3EN

Timeline

Dates from the published record

  1. 14 Jul 2026

    Received by Lewisham

  2. 4 Aug 2026

    Validated

    Checked as complete and ready for consideration.

  3. 10 Aug 2026

    Added to PlanIndex

  4. Decision

    Awaiting decision

    Decision expected by 29 September 2026, 8 weeks from validation under the statutory target for most applications. Extensions of time are common and are agreed case by case.

    Lewisham took a median of 55 days over the applications it decided in the last year.

Who's behind it

Company information only, from the register and Companies House

Design Extension Agent, a design practice registered in Purley

Active · incorporated 2025 · Purley

133 applications on PlanIndex · across 24 councils · 75% granted

Trade members see everything this firm has filed, how it was decided, and get an email the day it files again.

See their track record

Documents

Plans, drawings, consultee responses and the officer's report

5 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 documents

What happens while it is decided

This application is with Lewisham for determination, against a statutory target of eight weeks. Over the last year Lewisham decided full applications in a median of 59 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.

Nearby applications

Within 0.3 miles

  • 43 DEVONSHIRE ROAD, LONDON, SE23 3EN

    DC/26/145119 Submitted 20 Aug 2026 50 yards away

    100% historically approved · decision due ~15 Oct

    FRONT: ONE Lime tree (T1) Ht 15m FELL to ground level & treat stump REASON: A remedy to the differential foundation movement at the insured property and to ensure the long-term stability of the building. To limit the extent and need for expensive and disruptive engineering repair works at the insured property. To limit the extent and need for costly CO2e emissions relating to alternative engineering repair works at the insured property. It is the case that an alternative to felling such as pruning or significant 'pollarding' of the tree would not provide a reliable or sustainable remedy to the subsidence in this case. We do not consider that any other potential means of mitigation, including root barriers, would be effective or appropriate in the circumstances. We are satisfied that the evidence obtained following completion of our Arboricultural Implication Assessment report completed 31/01/2024 clearly links the Lime T1 and False Acacia T2 as the cause of damage to the risk address. REPLANTING: Insurers understanding the requirement to offer replacement planting in the event consent to fell is granted. 43 DEVONSHIRE ROAD TREE PRESERVATION ORDER 2024 DC/24/135159

    Awaiting decision Trees 8 docs
  • 45A DEVONSHIRE ROAD, LONDON, SE23 3EN

    DC/25/141880 Submitted 21 Oct 2025 50 yards away

    FRONT: ONE False Acacia tree (T2) Height: 18m - FELL ONE Sycamore stump (T3) Height: 5m - REMOVE Reason for works: See tree report

    Withdrawn Trees 3 docs
  • FLAT 1-3, 31 DEVONSHIRE ROAD, LONDON, SE23 3EN

    DC/19/114398 Submitted 21 Oct 2019 50 yards away

    Replacement slate covering to the main roof and the front bay roof on Flats 1-3, 31 Devonshire Road SE23.

    Granted Full applications New dwelling
  • 43 DEVONSHIRE ROAD, LONDON, SE23 3EN

    DC/20/115588 Submitted 5 Feb 2020 50 yards away

    FRONT (of No.45): ONE Robinia (T1)(ht.14m) CROWN REDUCE HEIGHT by approx.2m from 14m to approx.12m, REDUCE RADIUS by approx.1m on all compass points, CROWN LIFT to 4m above ground level. (Remove ivy, exempt works). Reason: subsidence issues. Informative: Tree works amended to CROWN REDUCE (from FELL) - agreement with agent for first stage mitigation works 23/03/2020 (see p.4 Preliminary Engineering Appraisal Report ? Mitigation, tree reduction) Informative: the amended tree works are greatly appreciated with regard to the amenity significance of the tree and slight (category 2) cracking of front porch.

    Granted Trees 6 docs
    Small domestic
  • BASEMENT FLAT, 37D DEVONSHIRE ROAD, LONDON, SE23 3EN

    DC/19/114546 Submitted 5 Nov 2019 50 yards away

    REAR: ONE Acacia (T1) CROWN LIFT to 4m above ground level, CROWN THIN by 20%. Sever ivy at base (exempt works).

    Granted Trees 5 docs
  • 45A DEVONSHIRE ROAD, LONDON, SE23 3EN

    DC/26/145120 Submitted 20 Aug 2026 50 yards away

    100% historically approved · decision due ~15 Oct

    FRONT: ONE False Acacia tree (T2) Ht 10m FELL to ground level and treat stump with eco plugs (broadleaved). REASON: Proposed as a remedy to the differential foundation movement at the insured property and to ensure the long-term stability of the building. The above tree works are proposed to limit the extent and need for expensive and disruptive engineering repair works at the insured property It is the case that an alternative to felling such as pruning or significant 'pollarding' of the tree would not provide a reliable or sustainable remedy to the subsidence in this case. We do not consider that any other potential means of mitigation, including root barriers, would be effective or appropriate in the circumstances. We are satisfied that the evidence obtained following completion of our Arboricultural Implication Assessment report completed 31/01/2024 clearly links the Lime T1 and False Acacia T2 as the cause of damage to the risk address. REPLANTING: Insurers understanding the requirement to offer replacement planting in the event consent to fell is granted. 45 DEVONSHIRE ROAD TREE PRESERVATION ORDER DC/24/136999

    Awaiting decision Trees 9 docs

In Lewisham

  • DC/26/145447 Awaiting decision

    298 LEWISHAM ROAD, LONDON, SE13 7PA

    Installation of replacement double-glazed uPVC windows on front and rear elevations; replacement of composite door on the front elevation and uPVC door on the rear elevation at 298 Lewisham Road, SE13.

    Received 17 Sep, published by the council 6 Oct 2026 Full applications
  • DC/26/145468 Awaiting decision

    HABERDASHERS ASKES HATCHAM GIRLS SCHOOL, JERNINGHAM ROAD, LONDON, SE14 5NY

    Installation of replacement double glazed timber windows at the north elevation of the Main Building Block at Haberdashers Askes Hatcham Girls School, Jerningham Road, SE14.

    Received 17 Sep, published by the council 9 Oct 2026 Full applications
  • DC/26/145446 Awaiting decision

    164 SPRINGBANK ROAD, LONDON, SE13 6SU

    Installation of replacement windows with double-glazed uPVC windows in the front and rear elevations, a composite door in the front elevation and uPVC door in the rear elevation to Flats A - D, 164 Springbank Road SE13.

    Received 17 Sep, published by the council 9 Oct 2026 Full applications
  • DC/26/145292 Awaiting decision

    NEPTUNE WHARF, GRINSTEAD ROAD, LONDON, SE8 5FE

    Infill of the existing undercroft vehicle access area between Blocks A and B to create 280sqm of commercial floorspace (Use Class E), including alterations to commercial servicing arrangements, refuse and recycling management, and associated changes to the building elevations.

    Received 4 Sep, published by the council 8 Sep 2026 Full applications
  • DC/26/145288 Awaiting decision

    SMIKLE COURT, HATCHAM PARK MEWS, LONDON, SE14 5DG

    Details submitted pursuant to Condition 3-Construction Management Plan, Condition 4-Privacy Screen, Condition 6(a)-Refuse and Recycling, Condition 7(a)-Cycle Parking, Condition 8(a)-Hard and Soft Landscaping and Condition 11-PV Panels of planning permission DC/24/138499 dated 4th March 2025 at Smikle Court, Hatcham Park Mews SE14.

    Received 3 Sep, published by the council 8 Sep 2026 Full applications