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Planning application

36 Lancaster Avenue London Lambeth SE27 9DZ

Refused Lambeth 25/03320/FUL Full Planning Permission

Works: Extension Loft or dormer Windows or glazing

Refused. Only the applicant can appeal, within the statutory time limit, and a revised scheme can be submitted instead.

Proposal

Erection of a rear dormer extension including 3 rooflights to the front, removal of existing chimney stack, replacement of front façade bay window and re-roofing and canopy covering in traditional slate.

As published by the council, reference 25/03320/FUL

Application record

Reference
25/03320/FUL
Type
Full Planning Permission
Status
Decided
Decision
Refused As published: Refuse Permission
Received
22 Oct 2025
Validated
22 Oct 2025
Decided
17 Dec 2025
Ward
West Dulwich
Decision by
Delegated Decision
Postcode
SE27 9DZ

Site history

Applications at this address on the Lambeth register

This site has had 2 applications since 2025: 0 approved, 1 refused.

  • 26/00940/FUL Decided

    36 Lancaster Avenue London Lambeth SE27 9DZ

    Erection of a rear dormer extension including the installation of 2 front, 1 side and 1 rear roof lights, the replacement of ground floor front facade bay window sashes plus enlargement of the second floor side sash window, and re-roofing and canopy covering in traditional slate.

    Submitted 24 Mar 2026 Full applications

Timeline

Dates from the published record

  1. 22 Oct 2025

    Received by Lambeth

  2. 17 Dec 2025

    Decision issued: Refuse Permission

  3. 11 Aug 2026

    Added to PlanIndex

Who's behind it

Company information only, from the register and Companies House

Delve Architects Ltd Agent, an architecture practice registered in London

Active · incorporated 2018 · London

18 applications on PlanIndex · across 4 councils · 79% granted

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See their track record

Documents

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

34 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.

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What this refusal means

Lambeth refused this application for the reasons on the decision notice; only the applicant can appeal, and refused schemes often return in revised form. More in our guide to what happens after a planning decision.

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

  • 36 Lancaster Avenue London Lambeth SE27 9DZ

    26/00940/FUL Submitted 24 Mar 2026 50 yards away

    78% historically approved · decision due ~9 Jun

    Erection of a rear dormer extension including the installation of 2 front, 1 side and 1 rear roof lights, the replacement of ground floor front facade bay window sashes plus enlargement of the second floor side sash window, and re-roofing and canopy covering in traditional slate.

    Decided Full applications Extension Loft or dormer +1 36 docs
  • 3 Lancaster Avenue London Lambeth SE27 9EL

    26/02744/FUL Submitted 23 Sep 2026 100 yards away

    78% historically approved · decision due ~25 Nov

    Erection of a single-storey first-floor side extension above the existing side extension, and conversion of the existing garage and ground-floor bathroom to form a one-bedroom dwellinghouse, subdivided from the host dwelling. (AMENDED DESCRIPTION)

    Awaiting decision Full applications Extension
    Small domestic
  • 37 Lancaster Avenue London SE27 9EL

    16/03230/VOC Submitted 27 May 2016 100 yards away

    Removal of condition 9 of planning permission 08/02301/FUL (Change of use to a Residential Care Home (Use Class C2) for Adults with Learning Difficulties and associated boundary and forecourt/front entrance treatment) granted on 13.08.2008Condition 9 states: The change of use herewith permitted shall not be to any use other than to a home within Use Class C2 of the Town and Country Planning (Use Classes) Order 2005, to provide residential accommodation for adults with learning difficulties, with a significant element of care to people in need of care. Such care to be provided 24 hours a day by staff on the premises.

    Granted Amendments 4 docs
  • 22 Lancaster Avenue London SE27 9DZ

    26/00003/FUL Submitted 1 Jan 2026 100 yards away

    78% historically approved · decision due ~3 Mar

    Erection of a rear dormer extension including 1 rooflight to the front and replacement natural slate tiles to entire roof.

    Decided Full applications Extension Loft or dormer 27 docs
  • 30 Chatsworth Way London SE27 9HN

    26/02466/FUL Submitted 26 Aug 2026 100 yards away

    Erection of a single-storey ground-floor rear extension, together with façade alterations, replacement windows, installation of rooflights and associated works.

    Granted Full applications Extension Loft or dormer +1 6 docs
    Small domestic
  • 43 Lancaster Avenue London Lambeth SE27 9EL

    25/03678/TCA Submitted 26 Nov 2025 100 yards away

    Rear Garden: T1 Elder Crown lift to 2.4m and clear structures by 1m. Remove deadwood. T2 Ash Crown lift to 2.4m and clear structures by 1m. Remove deadwood. T3 Willow Crown lift to 2.4m and clear structures by 1m. Remove deadwood. T4 Laurel Crown lift to 2.4m and clear structures by 1m. Remove deadwood. T5 Chestnut Crown lift to 2.4m and clear structures by 1m. Remove deadwood. Reason: General maintenance. Improve clearance and safety for nursery.

    Granted Trees 2 docs

In Lambeth

  • 26/03040/FUL Awaiting decision

    3 Walberswick Street London Lambeth SW8 1XF

    Erection of a second-storey rear extension and the addition of a window to the mansard. Reduction from a double sliding door to a single door with a Juliet balcony

    Received 15 Oct, published by the council 21 Oct 2026 Full applications
  • 26/03004/FUL Awaiting decision

    61 Amesbury Avenue London Lambeth SW2 3AE

    Erection of a single storey rear infill extension, replacement of the existing timber sash windows with double glazed timber sash windows, erection of new fence to front patio and installaton of Air Source Heat Pump to existing roof.

    Received 14 Oct, published by the council 21 Oct 2026 Full applications
  • 26/02988/FUL Awaiting decision

    76 Bonham Road London Lambeth SW2 5HG

    Change of use of the ground floor to self contained unit (class C3), upper floors and loft to a large House in Multiple Occupation (Sui Generis), together with sub-division of the rear garden, installation of 2x rooflights to front roofslope, conversion of the existing garage to ancillary residential gym use, installation of air source heat pumps, and provision of cycle and refuse storage.

    Received 13 Oct, published by the council 22 Oct 2026 Full applications
  • 26/02996/FUL Awaiting decision

    Surrey County Cricket Club Kennington Oval London Lambeth SE11 5SS

    Extension of the existing external balcony on third floor pitch-facing elevation and installation of minor additional plant at roof level.

    Received 13 Oct, published by the council 21 Oct 2026 Full applications
  • 26/03001/FUL Awaiting decision

    80 Park Hill London SW4 9PB

    Erection of a single-storey ground floor rear and infill extension including the installation of two rooflights (ground floor flat).

    Received 13 Oct, published by the council 19 Oct 2026 Full applications