51 Harrowby Street London W1H 5EF

This site has had 3 applications since 2026.

• 26/05686/LBC Awaiting decision

  51 Harrowby Street London W1H 5EF

  Replacement of two first floor Balconette style Balconies on the front facade of the building matching the ornate design of the balconies on the adjoining property.

  Submitted 19 Aug 2026 Heritage and listed buildings
• 26/00907/FULL Awaiting decision

  51 Harrowby Street London W1H 5EF

  Replacement of existing iron railings to the front boundary and painting of front elevation. (Linked to 26/00097/LBC)

  Submitted 13 Feb 2026 Full applications

1. 8 Jan 2026

   Received by Westminster

2. 13 Feb 2026

   Validated

   Checked as complete and ready for consideration.

3. 20 Jul 2026

   Added to PlanIndex

4. Decision

   Awaiting decision

   Decision expected by 10 April 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.

• 26/00907/FULL Awaiting decision

  51 Harrowby Street London W1H 5EF

  Replacement of existing iron railings to the front boundary and painting of front elevation. (Linked to 26/00097/LBC)

  Submitted 13 Feb 2026 Full applications

1 later application on the register refers to this one:

• 26/00907/FULL Awaiting decision

  51 Harrowby Street London W1H 5EF

  Replacement of existing iron railings to the front boundary and painting of front elevation. (Linked to 26/00097/LBC)

  Submitted 13 Feb 2026 Full applications

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.

• 51 Harrowby Street London W1H 5EF

  26/05686/LBC Submitted 19 Aug 2026 50 yards away

  90% historically approved · decision due ~14 Oct

  Replacement of two first floor Balconette style Balconies on the front facade of the building matching the ornate design of the balconies on the adjoining property.

  Awaiting decision Heritage and listed buildings

• 51 Harrowby Street London W1H 5EF

  26/00907/FULL Submitted 13 Feb 2026 50 yards away

  87% historically approved · decision due ~10 Apr

  Replacement of existing iron railings to the front boundary and painting of front elevation. (Linked to 26/00097/LBC)

  Awaiting decision Full applications 12 docs

• Studio Cottage 22 Cato Street London W1H 5JG

  10/06962/CAC Submitted 11 Aug 2010 50 yards away

  Demolition of part of the existing building.

  Withdrawn Heritage and listed buildings Demolition 4 docs

• Richbourne Court 9 Harrowby Street London W1H 5PT

  07/00778/FULL Submitted 23 Jan 2007 50 yards away

  Installation of rising arm barriers, additional railings and creation of new parking spaces.

  Withdrawn Full applications 7 docs

• Richbourne Court 9 Harrowby Street London W1H 5PT

  08/00792/FULL Submitted 21 Jan 2008 50 yards away

  Installation of rising arm barrier and additional railings along with creation of new parking spaces.

  Granted Full applications 9 docs

• 18 Molyneux Street London W1H 5HN

  25/06555/ADLBC Submitted 12 Sep 2025 50 yards away

  Details of the cleaning of the external elevations pursuant to Condition 4 (i) of Listed Building Consent dated 29 July 2025 (RN25/03923/LBC)

  Granted Conditions 8 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
• 26/06342/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
• 26/06299/LBC Awaiting decision

  Apartment 33 24 Park Crescent London W1B 1AA

  Alterations to internal partitions, door openings, doors and floor finishes.

  Received 15 Sep, published by the council 22 Sep 2026 Heritage and listed buildings