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Planning application

12 Strathnairn Street London Southwark SE1 5BL

Granted Southwark 21/AP/3796 Householder Application

Works: Extension Loft or dormer Windows or glazing Small domestic

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

Permission granted. Work must normally begin within three years of the decision or the permission lapses.

Proposal

Construction of single storey ground floor rear extension complete with two roof lights, single storey first floor side extension, porch construction, front door relocation and alterations to the fenestration of the property.

As published by the council, reference 21/AP/3796

Application record

Reference
21/AP/3796
Type
Householder Application
Status
Granted
Decision
Granted As published: Householder - GRANTED
Received
2 Nov 2021
Validated
3 Nov 2021
Decided
24 Feb 2022
Ward
South Bermondsey
Parish
Bermondsey And Rotherhithe
Decision by
Delegated Panel - Simple
Postcode
SE1 5BL

Site history

Applications at this address on the Southwark register

This site has had 2 applications since 2021: 2 approved, 0 refused.

  • 21/AP/3798 Granted

    12 Strathnairn Street London Southwark SE1 5BL

    Hip to gable roof extension and rear dormer roof extension.

    Decided 21 Dec 2021 Lawful development

Timeline

Dates from the published record

  1. 2 Nov 2021

    Received by Southwark

  2. 3 Nov 2021

    Validated

    Checked as complete and ready for consideration.

  3. 24 Feb 2022

    Decision issued: Householder - GRANTED

  4. 21 Sep 2026

    Added to PlanIndex

Who's behind it

Company information only, from the register and Companies House

Alta Design & Project Management Agent, a design practice

8 applications on PlanIndex · across 3 councils

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Documents

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

16 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 grant of permission means

Southwark granted permission on 24 February 2022, subject to any conditions on the decision notice. Work must normally begin within three years or the permission lapses. More in our guide to what happens after a planning decision.

About householder applications

Householder applications cover work to an existing house and its garden, such as extensions, lofts and outbuildings, and cannot create a separate dwelling or change what the building is used for. More in our guide to planning application types.

Nearby applications

Within 0.3 miles

  • 12 Strathnairn Street London Southwark SE1 5BL

    21/AP/3798 Submitted 3 Nov 2021 50 yards away

    Hip to gable roof extension and rear dormer roof extension.

    Granted Lawful development Extension Loft or dormer 8 docs
  • 10 Strathnairn Street London Southwark SE1 5BL

    22/AP/3285 Submitted 15 Sep 2022 50 yards away

    Construction of a ground floor rear extension and the installation of a roof light.

    Granted Householder Extension Loft or dormer 16 docs
    Domestic
  • 10 Strathnairn Street London Southwark SE1 5BL

    22/AP/1542 Submitted 29 Apr 2022 50 yards away

    Construction of a part single storey part two storey extension to the rear and the installation of a roof light.

    Granted Householder Extension Loft or dormer 13 docs
    Small domestic
  • 40 Strathnairn Street London Southwark SE1 5BL

    26/AP/1420 Submitted 18 May 2026 50 yards away

    Certificate of lawfulness (proposed) for construction of a ground floor rear extension and a rear dormer.

    Granted Lawful development Extension Loft or dormer 20 docs
  • 40 Strathnairn Street London Southwark SE1 5BL

    26/AP/2405 Submitted 12 Aug 2026 50 yards away

    95% historically approved · decision due ~29 Oct

    Construction of a single-storey rear extension; rear dormer roof extension with a Juliet balcony, and replacement of existing first-floor rear windows.

    Awaiting decision Extension Loft or dormer +1
    Small domestic
  • 38 Strathnairn Street London Southwark SE1 5BL

    20/AP/2230 Submitted 7 Aug 2020 50 yards away

    The construction of a single storey rear extension; the addition of a Juliet balcony and two windows to the rear elevation and one window to the front; and alterations to the fenestration of the front porch.

    Granted Householder Extension Windows or glazing 24 docs
    Small domestic

In Southwark

  • 26/AP/0784 Granted

    60 Grove Park London Southwark SE5 8LF

    Refurbishment of the property including replacement of glazing with thermally efficient conservation windows templated after originals, construction of a single-storey rear extension, a loft extension, minor internal partition alterations, and removal of external soil vent pipes.

    Received 18 Mar, published by the council 28 Jul 2026 Householder
  • 26/AP/1958 Granted

    38 Winterbrook Road London Southwark SE24 9JA

    Demolition of the existing rear extension and erection of a single-storey wraparound rear and side extension, together with associated alterations to existing openings, removal of the rear chimney and addition of wooden storage to the side. The proposals also incorporate previously approved roof works under planning permission ref. 25/AP/3282, comprising the enlargement of the existing rear dormer and installation of two rooflights.

    Received 7 Jul, published by the council 25 Jul 2026 Householder
  • 26/AP/1789 Granted

    81 Grove Hill Road London Southwark SE5 8DF

    Construction of a single storey rear extension, alteration to the existing side extension roof and rear elevation, internal reconfiguration and associated work

    Received 19 Jun, published by the council 25 Jul 2026 Householder
  • 26/AP/1831 Granted

    20 Homeleigh Road London Southwark SE15 3EE

    Construction of L-shaped dormer loft conversion with 450mm ridge raise and installation of three rooflights on front roof slope.

    Received 24 Jun, published by the council 25 Jul 2026 Householder
  • 26/AP/1814 Granted

    7 Tollgate Drive London Southwark SE21 7LS

    Rear ground floor extension, garage conversion and partial courtyard infill with associated internal alterations, rooflights, a pergola above the front door and the over the rear terrace. The conversion of the loft to create additional storage and the installation of a rooflight to the main roof.

    Received 22 Jun, published by the council 25 Jul 2026 Householder