Skip to content
PlanIndex Get alerts
Menu

Planning application

10 Downing Street London SW1A 2AA

Granted Westminster 12/04102/FULL Application for full Planning Permission

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

Proposal

Erection of new railings and handrail to existing flight of steps leading from Mountbatten Green to Downing Street.

As published by the council, reference 12/04102/FULL

Application record

Reference
12/04102/FULL
Type
Application for full Planning Permission
Status
Decided
Decision
Granted As published: Application Permitted
Received
17 Apr 2012
Validated
15 May 2012
Decided
2 Jul 2012
Ward
St James's
Decision by
Delegated Decision
Postcode
SW1A 2AA

Site history

Applications at this address on the Westminster register

This site has had 16 applications since 2005: 15 approved, 0 refused.

  • 26/01372/LBC Awaiting decision

    10 Downing Street London SW1A 2AA

    Removal and replacement of internal doors, typically existing frames and architraves to remain in place. Addition of two new doors at 3rd floor level. Removal of modern timber framed partition and door, replaced with new construction at similar location at 3rd floor. Replacement of a modern security shutter with a fire curtain.

    Submitted 25 Feb 2026 Heritage and listed buildings
  • 25/09398/FULL Granted

    10 Downing Street London SW1A 2AA

    Application for External Works to Steps. (Linked app: 25/08032/LBC)

    Decided 31 Mar 2026 Full applications
  • 25/08032/LBC Granted

    10 Downing Street London SW1A 2AA

    Application for External Works to Steps. (Linked app: 25/09398/FULL)

    Decided 31 Mar 2026 Heritage and listed buildings
  • 25/05863/LBC Granted

    10 Downing Street London SW1A 2AA

    Installation of metal angle to internal stone staircase to prevent further movement.

    Decided 9 Oct 2025 Heritage and listed buildings
  • 12/04103/LBC Granted

    10 Downing Street London SW1A 2AA

    Erection of new railings and handrail to existing flight of steps leading from Mountbatten Green to Downing Street.

    Decided 2 Jul 2012 Heritage and listed buildings
  • 11/03500/LBC Granted

    10 Downing Street London SW1A 2AA

    Internal alterations involving forming a new aperture in an existing dividing wall.

    Decided 14 Jun 2011 Heritage and listed buildings
  • 11/03473/LBC Granted

    10 Downing Street London SW1A 2AA

    Replacement of existing external lighting.

    Decided 14 Jun 2011 Heritage and listed buildings
  • 09/08135/LBC Granted

    10 Downing Street London SW1A 2AA

    Brickwork conservation to the Kent block and relaying of paving to the Kent Block Terrace: Repair and conservation of the red coloured brickwork of the North or Kent Block and the black coloured brickwork of west face of the link corridor to the front block with associated repairs to the clay tile roofing and timber cornice below the gutter: Lifting of paving to the terrace to the west of the Kent block, excavation of loose fill, placement of lime concrete fill with hydraulic lime based tanking water resisting layer and reinstatement of the stone paving.

    Decided 2 Dec 2009 Heritage and listed buildings
  • 09/00619/LBC Granted

    10 Downing Street London SW1A 2AA

    Refurbishment of existing WC's.

    Decided 1 Apr 2009 Heritage and listed buildings
  • 08/03454/LBC Granted

    10 Downing Street London SW1A 2AA

    Installation of CCTV.

    Decided 1 Sep 2008 Heritage and listed buildings

Timeline

Dates from the published record

  1. 17 Apr 2012

    Received by Westminster

  2. 15 May 2012

    Validated

    Checked as complete and ready for consideration.

  3. 2 Jul 2012

    Decision issued: Application Permitted

  4. 29 Jul 2026

    Added to PlanIndex

Who's behind it

Company information only, from the register and Companies House

Feilden+Mawson LLP Agent, registered in Norfolk

Active · incorporated 2001 · Norfolk

63 applications on PlanIndex · across 8 councils · 100% 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

What this grant of permission means

Westminster granted permission on 2 July 2012, 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 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 0.3 miles

  • 10 Downing Street London SW1A 2AA

    11/03500/LBC Submitted 8 Apr 2011 50 yards away

    Internal alterations involving forming a new aperture in an existing dividing wall.

    Granted Heritage and listed buildings

  • 10 Downing Street London SW1A 2AA

    11/03473/LBC Submitted 8 Apr 2011 50 yards away

    Replacement of existing external lighting.

    Granted Heritage and listed buildings

  • 11 Downing Street London SW1A 2AA

    10/06521/LBC Submitted 28 Jul 2010 50 yards away

    Internal alterations comprising new partition wall and relocation of door leaf.

    Granted Heritage and listed buildings

  • 10 Downing Street London SW1A 2AA

    08/03454/LBC Submitted 17 Apr 2008 50 yards away

    Installation of CCTV.

    Granted Heritage and listed buildings

  • 10 Downing Street London SW1A 2AA

    08/03453/FULL Submitted 17 Apr 2008 50 yards away

    Installation of a CCTV camera.

    Granted Full applications

  • 10 Downing Street London SW1A 2AA

    09/08135/LBC Submitted 7 Oct 2009 50 yards away

    Brickwork conservation to the Kent block and relaying of paving to the Kent Block Terrace: Repair and conservation of the red coloured brickwork of the North or Kent Block and the black coloured brickwork of west face of the link corridor to the front block with associated repairs to the clay tile roofing and timber cornice below the gutter: Lifting of paving to the terrace to the west of the Kent block, excavation of loose fill, placement of lime concrete fill with hydraulic lime based tanking water resisting layer and reinstatement of the stone paving.

    Granted Heritage and listed buildings

In Westminster

  • 26/05984/FULL Decided

    41 Sutherland Street London SW1V 4JX

    Replacement of front, side and rear windows with double glazed timber framed sash windows and replacement of a door with a double glazed timber framed door.

    Received 2 Sep, published by the council 11 Sep 2026 Full applications
  • 26/07229/FULL Awaiting decision

    5 D'arblay Street London W1F 8DL

    Alterations to the existing fixed windows to form two openable sash windows. (Linked with 26/07230/ADV)

    Received 22 Oct, published by the council 26 Oct 2026 Full applications
  • 26/07224/FULL Awaiting decision

    8 Hinde Street London W1U 3BQ

    Use of the building as an Embassy (sui generis) with reversion to Class E on cessation of occupation by the Government of the United Mexican States. Erection of a flagpole to front elevation.

    Received 22 Oct, published by the council 26 Oct 2026 Full applications
  • 26/06134/FULL Decided

    Flat 10H Hyde Park Mansions Cabbell Street London NW1 5BG

    Replacement of front and rear second floor level windows with slim-profile double-glazed panels, retaining the existing window and door frames.

    Received 8 Sep, published by the council 15 Sep 2026 Full applications
  • 26/07258/FULL Awaiting decision

    16A Croxley Road London W9 3HL

    Installation of air to air heat pumps to offices and bedrooms.

    Received 22 Oct, published by the council 23 Oct 2026 Full applications