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Planning application

Flat 13 Devon House 1 Maidstone Buildings Mews London Southwark SE1 1GE

Granted Southwark 26/AP/0843

Works: Extension Loft or dormer Windows or glazing

Relates to 26/AP/0842

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

Proposal

Listed Building Consent for works to the party wall of Wiltshire House as part of the associated planning application 26/AP/0842 for the 'extension of existing top floor flat into the terrace including the creation of a new walkway to accommodate the fire exit, erection of a dormer to the southern side of the building with a deck terrace, and installation of windows, double doors and skylights' at flat 13, Devon House. (revised description)

As published by the council, reference 26/AP/0843

Application record

Reference
26/AP/0843
Status
Granted
Decision
Granted
Received
24 Mar 2026
Validated
25 Mar 2026
Ward
Borough & Bankside
Parish
Borough, Bankside And Walworth
Postcode
SE1 1GE

Site history

Applications at this address on the Southwark register

This site has had 2 applications since 2026: 2 approved, 0 refused.

  • 26/AP/0842 Granted

    Flat 13 Devon House 1 Maidstone Buildings Mews London Southwark SE1 1GE

    Extension of existing top floor flat into the terrace, erection of a dormer to the southern side of the building with a deck terrace including the creation of a new walkway to accommodate the fire exit, and installation of windows, double doors and skylights (Revision of approved application no. 25/AP/1640).

    Submitted 24 Mar 2026

Timeline

Dates from the published record

  1. 24 Mar 2026

    Received by Southwark

  2. 25 Mar 2026

    Validated

    Checked as complete and ready for consideration.

  3. 28 Jul 2026

    Added to PlanIndex

  4. 24 Sep 2026

    Status changed to Granted

    Previously Under consideration/assessment.

Cases linked to this one on the register

  • 26/AP/0842 Granted

    Flat 13 Devon House 1 Maidstone Buildings Mews London Southwark SE1 1GE

    Extension of existing top floor flat into the terrace, erection of a dormer to the southern side of the building with a deck terrace including the creation of a new walkway to accommodate the fire exit, and installation of windows, double doors and skylights (Revision of approved application no. 25/AP/1640).

    Submitted 24 Mar 2026

Documents

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

39 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 this grant of permission means

Southwark granted permission, 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 this record

The published feed does not state which type of application this is; the register entry on Southwark's portal will say. Our guide explains the common types.

Nearby applications

Within 0.3 miles

  • Flat 13 Devon House 1 Maidstone Buildings Mews London Southwark SE1 1GE

    26/AP/0842 Submitted 24 Mar 2026 50 yards away

    Extension of existing top floor flat into the terrace, erection of a dormer to the southern side of the building with a deck terrace including the creation of a new walkway to accommodate the fire exit, and installation of windows, double doors and skylights (Revision of approved application no. 25/AP/1640).

    Granted Extension Loft or dormer +1 35 docs

  • 1A Maidstone Buildings Mews 72-76 Borough High Street London Southwark SE1 1GD

    22/AP/0783 Submitted 2 Mar 2022 50 yards away

    Demolition and rebuild of first floor for Class E (office) use and the construction of a new two storey dwelling (second and third floors) on top with solar panels.

    Refused Full applications Demolition 24 docs
    Domestic

  • 1A Maidstone Buildings Mews London Southwark SE1 1GD

    21/AP/2954 Submitted 18 Aug 2021 50 yards away

    Demolition and rebuild of first floor glazed facade and the construction of a new two storey dwelling on top of the existing three storey building, new roof terrace and the installation of PV panels.

    Withdrawn Full applications Roofing Demolition +1 18 docs
    Domestic

  • Apartment 10 Sussex House 3 Maidstone Buildings Mews London Southwark SE1 1GF

    19/AP/7111 Submitted 5 Dec 2019 50 yards away

    Increased bathroom dormer; New dormer at mezzanine level; New rooflight on north-east elevation; New privacy screen; Extended lobby boundary.

    Granted Full applications Loft or dormer 23 docs

  • 8 Union Street London Southwark SE1 1SZ

    25/AP/3734 Submitted 18 Dec 2025 50 yards away

    Replacement windows and doors throughout, and a side entrance door to provide level access via portable lifting platform.

    Granted Full applications Windows or glazing 27 docs

  • 10 - 18 Union Street London Southwark SE1 1SZ

    26/AP/1894 Submitted 30 Jun 2026 50 yards away

    Replacement windows and doors to Union Street (South elevation).

    Granted Full applications Windows or glazing 20 docs