Denham Building 27 St James's Street London SW1A 1HA

This site has had 2 applications since 2026.

• 26/01779/FULL Awaiting decision

  Denham Building 27 St James's Street London SW1A 1HA

  Creation of new landscaping including the installation of new planting, external lighting, street furniture and replacement entrance to the Bank Building fronting the Smithson Plaza. (Linked with 26/01780/LBC)

  Submitted 19 Mar 2026 Full applications

1. 19 Mar 2026

   Received by Westminster

2. 21 Jul 2026

   Added to PlanIndex

3. Decision

   Awaiting decision

   Decision expected by 14 May 2026, 8 weeks from validation under the statutory target for most applications. Extensions of time are common and are agreed case by case.

   Westminster took a median of 66 days over the applications it decided in the last year.

This application is with Westminster for determination, against a statutory target of eight weeks. Over the last year Westminster decided heritage and listed building applications in a median of 94 days. More in our guide to how long planning decisions take.

Listed building consent is needed for works that affect the special interest of a listed building, and carrying out such works without it is a criminal offence. More in our guide to planning application types.

• Denham Building 27 St James's Street London SW1A 1HA

  26/01779/FULL Submitted 19 Mar 2026 50 yards away

  87% historically approved · decision due ~14 May

  Creation of new landscaping including the installation of new planting, external lighting, street furniture and replacement entrance to the Bank Building fronting the Smithson Plaza. (Linked with 26/01780/LBC)

  Awaiting decision Full applications 10 docs

• Smithson Tower 25 St James's Street London SW1A 1HA

  25/09169/LBC Submitted 18 Dec 2025 50 yards away

  Installation of new external ductwork and associated external alterations to fifth floor roof level including replacement roof membranes, access hatch and installation of a maintenance-only door to existing roof plant enclosure.

  Granted Heritage and listed buildings Roofing 23 docs

• Basement And Ground Floor Smithson Tower 25 St James's Street London SW1A 1HA

  25/06882/LBC Submitted 25 Sep 2025 50 yards away

  Installation of a fascia sign, a wall plaque and 8 vinyl logos behind glazing.

  Granted Heritage and listed buildings Windows or glazing 16 docs

• Basement And Ground Floor Smithson Tower 25 St James's Street London SW1A 1HA

  25/06931/ADV Submitted 26 Sep 2025 50 yards away

  Display of non-illuminated fascia sign measuring 0.63m x 0.22m; and wall plaque sign measuring 0.28m x 0.45m.

  Granted Advertising 8 docs

• Smithson Tower 25 St James's Street London SW1A 1HA

  26/00095/LBC Submitted 8 Jan 2026 50 yards away

  Installation of 120 metres of fibre telecommunications cable from the 13th floor communications room to the basement intake room.

  Granted Heritage and listed buildings 15 docs

• Smithson Tower 25 St James's Street London SW1A 1HA

  25/09168/FULL Submitted 18 Dec 2025 50 yards away

  Installation of new external ductwork and associated external alterations to fifth floor roof level including replacement roof membranes, access hatch and installation of a maintenance-only door to existing roof plant enclosure.

  Granted Full applications Roofing 24 docs

• 26/06330/LBC Awaiting decision

  First Floor And Second Floor Maisonette 8 - 10 Shepherd Street London W1J 7JE

  Repair and strengthening work to underside of first floor above passageway.

  Received 16 Sep, published by the council 23 Sep 2026 Heritage and listed buildings
• 26/06345/LBC Awaiting decision

  49 Grosvenor Street London W1K 3HP

  Internal fit out works

  Received 16 Sep, published by the council 23 Sep 2026 Heritage and listed buildings
• 26/04878/LBC Decided

  34 Grosvenor Street London W1K 4QU

  Internal works to facilitate the subdivision of 34 Grosvenor Street and 3 Three Kings Yard

  Received 21 Jul, published by the council 1 Aug 2026 Heritage and listed buildings
• 26/06326/LBC Awaiting decision

  29 Norfolk Road London NW8 6AU

  Hard and soft landscaping works; amendment to railings style to rear garden structures (outbuilding and pergola); external lighting; boundary treatment; refuse storage; and photovoltaic panels. (Linked with 26/06325/FULL)

  Received 16 Sep, published by the council 23 Sep 2026 Heritage and listed buildings
• 26/06342/LBC Awaiting decision

  141 Harley Street London W1G 6BQ

  Installation of new sesame lift into existing front entrance steps. (Linked with 26/06341/FULL)

  Received 16 Sep, published by the council 23 Sep 2026 Heritage and listed buildings