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Planning application

47 Sansom Street London Southwark SE5 7RD

Awaiting decision Southwark 25/AP/3388 Certificate of Lawful Dev. - Proposed

Works: Extension Small domestic

Read from the description, not a valuation. How we read the register

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

Proposal

Certificate of Lawful Development ( Proposed) for Single-storey infill extension to the existing rear outrigger and side return to enlarge the ground floor living/kitchen area, adding approximately 6 sq m of floor space, together with the erection of a single-storey timber-framed home office/studio building in the rear garden.

As published by the council, reference 25/AP/3388

Application record

Reference
25/AP/3388
Type
Certificate of Lawful Dev. - Proposed
Status
Under consideration/assessment
Received
19 Nov 2025
Validated
24 Nov 2025
Ward
St Giles
Postcode
SE5 7RD

Site history

Applications at this address on the Southwark register

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

  • 25/AP/3470 Granted

    47 Sansom Street London Southwark SE5 7RD

    Construction of a single-storey infill extension to the existing rear outrigger and side return.

    Decided 15 Jan 2026 Householder

Timeline

Dates from the published record

  1. 19 Nov 2025

    Received by Southwark

  2. 24 Nov 2025

    Validated

    Checked as complete and ready for consideration.

  3. 10 Aug 2026

    Added to PlanIndex

  4. Decision

    Awaiting decision

    Decision expected by 19 January 2026, 8 weeks from validation under the statutory target for most applications. Extensions of time are common and are agreed case by case.

    Southwark took a median of 52 days over the applications it decided in the last year.

Documents

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

19 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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Open the documents

What happens while it is decided

This application is with Southwark for determination, against a statutory target of eight weeks. Over the last year Southwark decided lawful development applications in a median of 50 days. More in our guide to how long planning decisions take.

About lawful development applications

A lawful development certificate is a legal determination that existing or proposed works do not need planning permission; the merits of the scheme are not considered. More in our guide to planning application types.

Nearby applications

Within 0.3 miles

  • 47 Sansom Street London Southwark SE5 7RD

    25/AP/3470 Submitted 28 Nov 2025 50 yards away

    Construction of a single-storey infill extension to the existing rear outrigger and side return.

    Granted Householder Extension 21 docs
    Small domestic
  • 152 Benhill Road London Southwark SE5 7LZ

    26/AP/1419 Submitted 18 May 2026 50 yards away

    Ground floor rear extension

    Granted Householder Extension 24 docs
    Domestic
  • 35 Sansom Street London Southwark SE5 7RD

    22/AP/3431 Submitted 3 Oct 2022 50 yards away

    Certificate of Lawfulness (proposed) formation of rear dormer and insertion of two roof lights to the front elevation

    Granted Lawful development Loft or dormer 7 docs
  • 138 Benhill Road London Southwark SE5 7LZ

    22/AP/0457 Submitted 16 Feb 2022 50 yards away

    Construction of a side-rear extension; the construction of a mansard roof extension and the raising of the existing chimney and parapet walls; and the installation of 2x rooflights to the front roofslope.

    Granted Householder Extension Loft or dormer 41 docs
    Domestic
  • 39 Sansom Street London Southwark SE5 7RD

    26/AP/2412 Submitted 12 Aug 2026 50 yards away

    Construction of an L-shaped rear dormer extension, three rooflights to the front roof slope, a 400mm ridge height increase, and an increase in the existing chimney height.

    Granted Extension Loft or dormer +1
  • 24A Vicarage Grove London Southwark SE5 7LW

    22/AP/1107 Submitted 25 Mar 2022 50 yards away

    Demolition of existing timber extension and construction of single storey side-rear extension with light well. Addition of side entrance gate.

    Granted Full applications Extension Demolition 23 docs
    Small domestic

In Southwark

  • 26/AP/2574 Awaiting decision

    23 Alberta Street London Southwark SE17 3SF

    Certificate of lawfulness (proposed) for construction of a rear dormer and the installation of 1x rooflight to the front roofslope.

    Received 1 Sep, published by the council 8 Sep 2026 Lawful development
  • 26/AP/2509 Awaiting decision

    Newington Gardens Harper Road London Southwark SE1

    Certificate of Lawfulness (proposed) for improvement works to the playground at Newington Gardens to include the removal of current playground equipment and installation of new accessible equipment.

    Received 21 Aug, published by the council 7 Sep 2026 Lawful development
  • 26/AP/1673 Granted

    Flat 67 Benbow House 24 New Globe Walk London Southwark SE1 9DS

    Certificate of Lawful Development to replace existing external doors with new thermally improved doors

    Received 11 Jun, published by the council 25 Jul 2026 Lawful development
  • 26/AP/1909 Granted

    6 Ethnard Road London Southwark SE15 1RU

    Certificate of lawfulness (proposed) for a loft conversion with rear dormer

    Received 30 Jun, published by the council 25 Jul 2026 Lawful development
  • 26/AP/2486 Awaiting decision

    84 Croxted Road London Southwark SE21 8NP

    Certificate of lawfulness (proposed) for the formation of a moveable structure (as defined under the Caravan Site Act) that can be separated into 2 sections and removed from the rear garden by crane. Refer to the following drawings: 318 SP 00 (PD) 318 SP 01 (PD) 318 SP 101 (PD) 318 GS 01 (PD) 318 GS 02 (PD)

    Received 19 Aug, published by the council 20 Aug 2026 Lawful development