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

This site has had 2 applications since 2026.

• 26/AP/0843 Awaiting decision

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

  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, 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)

  Submitted 24 Mar 2026 Heritage and listed buildings

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. Decision

   Awaiting decision

   Decision expected by 20 May 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 51 days over the applications it decided in the last year.

1 later application on the register refers to this one:

• 26/AP/0843 Awaiting decision

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

  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, 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)

  Submitted 24 Mar 2026 Heritage and listed buildings

This application is with Southwark for determination, against a statutory target of eight weeks. Over the last year Southwark decided full applications in a median of 66 days. More in our guide to how long planning decisions take.

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.

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

  26/AP/0843 Submitted 24 Mar 2026 50 yards away

  94% historically approved · decision due ~20 May

  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, 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)

  Awaiting decision Heritage and listed buildings Extension Loft or dormer +1 39 docs

• Flat 11 Wiltshire House 2 Maidstone Buildings Mews London Southwark SE1 1GH

  25/AP/2414 Submitted 22 Aug 2025 50 yards away

  Listed building consent for the replacement of decking and installation of a gate and the retention of an extended roof terrace, including one replacement and one additional roof light, access steps for maintenance purposes and replacement of the glass balustrade.

  Granted Heritage and listed buildings Loft or dormer 20 docs

• Flat 11 Wiltshire House 2 Maidstone Buildings Mews London Southwark SE1 1GH

  25/AP/2413 Submitted 22 Aug 2025 50 yards away

  Proposed replacement of decking and installation of a gate and retention of an extended roof terrace, including one replacement and one additional roof light, access steps for maintenance purposes and replacement of the glass balustrade.

  Granted Full applications Loft or dormer 20 docs

• 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

• The Liberty Of Southwark (formerly Landmark Court) Land Bounded By Southwark Street Redcross Way And Cross Bones Graveyard London SE11RQ

  23/AP/2334 Submitted 17 Aug 2023 50 yards away

  Non material amendment of planning permission 19/AP/0830: 'Mixed-use development involving the demolition of 25-33 Southwark Street, the restoration of 15 Southwark Street for residential use and the erection of new buildings comprising: a part 6/8/9-storey office (Class B1) building incorporating a single-storey basement, flexible ground floor uses (Classes A1/A2/A3/A4 and D2) and workspace units (Class B1); a 3-storey workshop building (Class B1); a marketplace with up to 9 permanent stalls (Class A1); 36 residential units in the refurbished 15 Southwark Street building and a new 8-storey block; associated areas of new public realm; hard and soft landscaping; enhancements to Crossbones Burial Ground; means of access and enclosure, and; ancillary plant and equipment.'Non-Material Amendment to enable the dismantlement, storage, and restoration of the facade of 15 Southwark Street and the amendment of the wording of Condition 25.

  Decided Conditions Demolition 22 docs
  Small domestic

• The Liberty Of Southwark (formerly Landmark Court) Land Bounded By Southwark Street Redcross Way And Cross Bones Graveyard London SE1 1RQ

  23/AP/2810 Submitted 5 Oct 2023 50 yards away

  Minor material amendment of planning permission 19/AP/0830 (as amended by 21/AP/1295, 22/AP/1689, 23/AP/0230, 23/AP/2643, 23/AP/2334 and 23/AP/2763: 'Mixed-use development involving demolition, the restoration of 15 Southwark Street and the erection of new buildings comprising: offices (Class B1) incorporating a single-storey basement; flexible ground floor uses (Classes A1/A2/A3/A4, B1 and D2); a marketplace for permanent stalls (Class A1); residential units (Class C3); associated areas of new public realm; hard and soft landscaping; enhancements to Crossbones Burial Ground; means of access and enclosure; and ancillary plant and equipment .' Amendments include: -Addition of permanent structure for discovered mausoleum and mosaics; -Creation of community centre; -Change of use of 15 Southwark Street from retail/residential to retail/office; -Reconfiguration of basement -Increased massing of office and residential buildings; -Updates to energy, sustainability and fire safety strategy (including additional staircores); -Creation of new cycle hub, increase in cycle parking, improvement to storage facilities, updates to parking strategy

  Granted Amendments Demolition 172 docs
  Small domestic

• 26/AP/2031 Granted

  Flat B11, Lloyds Wharf Mill Street London SE1 2BD

  Replacement of existing rooflights and installation of external shutters.

  Received 13 Jul, published by the council 25 Jul 2026 Full applications
• 26/AP/2012 Granted

  3 Grange Yard London Southwark SE1 3AE

  Alterations to an existing metal structure located within the courtyard including re-cladding, installation of two openings with roller shutters and three access doors, and installation of six roof lights.

  Received 9 Jul, published by the council 25 Jul 2026 Full applications
• 26/AP/1894 Granted

  10 - 18 Union Street London Southwark SE1 1SZ

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

  Received 30 Jun, published by the council 25 Jul 2026 Full applications
• 26/AP/1772 Granted

  The Admiral Hyson Estate Galleywall Road London Southwark SE16 3PA

  Removal of existing electrical equipment and erection of substation.

  Received 18 Jun, published by the council 25 Jul 2026 Full applications
• 26/AP/2127 Granted

  Flat 16 157-163 Queens Road London Southwark SE15 2ND

  Roof terrace on the flat roof adjoining the flat, linked to the existing south-facing balcony; replacement of window with inward-opening aluminium doors; a permanent privacy balustrade.

  Received 20 Jul, published by the council 25 Jul 2026 Full applications