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Planning application

21 Harpenden Road London SE27 0AG

Awaiting decision Lambeth 26/02581/FUL Full Planning Permission

Works: Extension Windows or glazing

Still open. Anyone can comment while the consultation period runs, and comments go to the council rather than to us.

Proposal

Erection of a ground floor side and rear extension and removal of a window with the addition of a door to the rear.

As published by the council, reference 26/02581/FUL

Application record

Reference
26/02581/FUL
Type
Full Planning Permission
Status
Awaiting decision
Received
10 Aug 2026
Validated
10 Aug 2026
Ward
St Martins
Postcode
SE27 0AG

Comment by 30 September 2026

The council is taking comments on this application until then. Have your say on Lambeth's portal.

Timeline

Dates from the published record

  1. 10 Aug 2026

    Received by Lambeth

  2. 15 Sep 2026

    Added to PlanIndex

  3. Decision

    Awaiting decision

    Decision expected by 5 October 2026, 8 weeks from validation under the statutory target for most applications. Extensions of time are common and are agreed case by case.

    Lambeth took a median of 56 days over the applications it decided in the last year.

Who's behind it

Company information only, from the register and Companies House

Resi Design Ltd Agent, a design practice registered in London

Active · incorporated 2016 · London

463 applications on PlanIndex · across 70 councils · 93% 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

8 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 documents

What happens while it is decided

This application is with Lambeth for determination, against a statutory target of eight weeks. Over the last year Lambeth decided full applications in a median of 62 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 500 metres

  • 40 Harpenden Road London SE27 0AE

    21/01741/FUL Submitted 30 Apr 2021 39m away

    Erection of a single storey ground floor rear and side infill extension and installation of a 2.4m high boundary wall.

    Granted Full applications Extension 18 docs
    Small domestic

  • 34 Harpenden Road London SE27 0AE

    26/00529/LDCE Submitted 19 Feb 2026 43m away

    Certificate of Lawful Development (existing) for the use of 2 self contained flats at 34 Harpenden Road.

    Granted Lawful development New dwelling 11 docs

  • 34 Harpenden Road London SE27 0AE

    26/01401/FUL Submitted 6 May 2026 44m away

    77% historically approved · decision due ~1 Jul

    Erection of a rear dormer extension including two roof lights to the front and two mansard windows to the rear (top floor flat)

    Decided Full applications Extension Loft or dormer +1 9 docs

  • 56 Harpenden Road London SE27 0AF

    25/03136/FUL Submitted 6 Oct 2025 62m away

    Change of use to 4 self contained residential units (Use Class C3).

    Refused Full applications 26 docs

  • 34 Harpenden Road London SE27 0AE

    26/01982/FUL Submitted 6 Jul 2026 63m away

    Erection of a rear mansard roof extension to the top flat.

    Granted Full applications Extension Loft or dormer 8 docs

  • 34 Harpenden Road London SE27 0AE

    26/01983/FUL Submitted 6 Jul 2026 63m away

    77% historically approved · decision due ~31 Aug

    Erection of a single storey rear extension to the ground floor flat.

    Awaiting decision Full applications Extension 7 docs
    Small domestic

In Lambeth

  • 26/02089/FUL Granted

    135 Sternhold Avenue London SW2 4PF

    Erection of a rear dormer extension including the addition of three roof lights to the front and a second floor single storey rear extension including the formation of a terrace (flat 3).

    17 Jul 2026 Full applications
  • 26/02082/FUL Refused

    4 Fernwood Avenue London Lambeth SW16 1RD

    Erection of a ground floor rear single storey extenson.

    17 Jul 2026 Full applications
  • 26/01870/FUL Granted

    57 Iveley Road London SW4 0EN

    Enlargement of existing side lightwell and window. Excavation of existing basement with the formation of a front lightwell - Flat 1.

    24 Jun 2026 Full applications
  • 26/01813/FUL Refused

    46 - 48 Norwood High Street London SE27 9NR

    Erection of mansard roof extension to both 46 and 48 Norwood.

    19 Jun 2026 Full applications
  • 26/02607/FUL Awaiting decision

    21 Tremadoc Road London SW4 7NF

    Change of use of existing property from a dwellinghouse (Use Class C3) to a 9 -person HMO (Sui-Generis) together with the erection of a single storey ground floor rear extension. Erection of rear dormer roof extension; dormer roof extension over existing rear outrigger; installation of 3 x rooflights to the front roof slope together with the provision of cycle and bin storage.

    8 Sep 2026 Full applications