Planning application
Radiant House 36 - 38 Mortimer Street London W1W 7RG
Still open. Anyone can comment while the consultation period runs, and comments go to the council rather than to us.
Proposal
Removal of two external steel escape platforms at 3rd and 4th floor levels to rear elevation, forming new protected escape route at second floor and additional internal alterations.
As published by the council, reference 26/06020/LBC
Application record
- Reference
- 26/06020/LBC
- Category
- Heritage and listed buildings
- Status
- Pending
- Received
- 3 Sep 2026
- Validated
- 9 Sep 2026
- Postcode
- W1W 7RG
Site history
Applications at this address on the Westminster register
This site has had 3 applications since 2026.
-
26/03217/LBC Awaiting decision
Radiant House 36 - 38 Mortimer Street London W1W 7RG
Replacement of three air conditioning condensers and installation of four additional air conditioning condensors in rear external stairwell at basement and ground floor levels. (Linked to 26/03105/FULL)
-
26/03105/FULL Awaiting decision
Radiant House 36 - 38 Mortimer Street London W1W 7RG
Replacement of three air conditioning condensers and installation of four additional air conditioning condensors in the rear external stairwell at basement and ground floor levels. (Linked to 26/03217/LBC)
Timeline
Dates from the published record
-
3 Sep 2026
Received by Westminster
-
9 Sep 2026
Validated
Checked as complete and ready for consideration.
-
11 Sep 2026
Added to PlanIndex
-
Decision
Awaiting decision
Decision expected by 4 November 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 62 days over the applications it decided in the last year.
What happens while it is decided
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 87 days. More in our guide to how long planning decisions take.
About heritage and listed building applications
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.
Nearby applications
Within 500 metres
-
Radiant House 36 - 38 Mortimer Street London W1W 7RG
87% historically approved · decision due ~10 Jul
Replacement of three air conditioning condensers and installation of four additional air conditioning condensors in the rear external stairwell at basement and ground floor levels. (Linked to 26/03217/LBC)
Awaiting decision Full applications 11 docs -
Radiant House 36 - 38 Mortimer Street London W1W 7RG
90% historically approved · decision due ~10 Jul
Replacement of three air conditioning condensers and installation of four additional air conditioning condensors in rear external stairwell at basement and ground floor levels. (Linked to 26/03105/FULL)
Awaiting decision Heritage and listed buildings 15 docs -
Basement And Ground Floor 42 - 44 Great Titchfield Street London W1W 7PY
87% historically approved · decision due ~27 Oct
Minor alterations to the ground floor frontage of 42 - 44 Great Titchfield Street associated with the introduction of a new food and beverage (F&B) occupier. The works are limited to the front elevation and include repainting of the existing frontage from black to cream, installation of two branded entrance canopies over the glazed openings, branding/manifestation to the entrance door, installation of one wall-mounted framed A4 display menu, and one internally illuminated projecting flag sign.
Awaiting decision Full applications Windows or glazing 11 docs -
Basement And Ground Floor 42 - 44 Great Titchfield Street London W1W 7PY
85% historically approved · decision due ~10 Aug
Display of non illuminated other sign measuring 1m X 3.265m, 1m X 3.265m, 0.1m X 0.3m and internally illuminated projecting sign measuring 0.54m X 0.55m
Awaiting decision Advertising 11 docs -
30 - 32 Mortimer Street London W1W 7RE
89% historically approved · decision due ~8 Oct
Details of samples of the facing materials you will use, including glazing, and elevations and roof plans annotated to show where the materials are to be located pursuant to condition 5 of planning permission dated 20th February 2025 (RN:24/09057/FULL).
Decided Windows or glazing -
30 - 32 Mortimer Street London W1W 7RE
89% historically approved · decision due ~8 Oct
Details of samples of facing materials including glazing and elevations and roof plans annotated to show where the materials are to be located pursuant to Condition 3 of planning permission dated 24th April 2025 (RN:25/01023/FULL)
Decided Windows or glazing
Other heritage and listed building applications
In Westminster
-
26/06076/LBC Awaiting decision
36 Shepherd Market London W1J 7QR
Internal stone cladding to walls, floors, and stair treads; internal redecoration and replacement washbasin; redecoration of existing timber shopfront frame, pilasters, stallriser and fascia surround; removal and refixing of existing non-illuminated flat-cut fascia lettering; and replacement of retractable shopfront canvas awning. (Linked with 26/06069/FULL & 26/06070/ADV)
-
26/06056/LBC Awaiting decision
Albert Hall Mansions Kensington Gore London SW7 2AN
Gentle steam clean throughout to rejuvenate brick surfaces and improve the outlook of the building and localised brick replacement/repairs; pointing repairs; Rainwater goods: remove, refurbish and repaint in black; Balconies: clean walking surfaces with hot water steam and apply liquid membrane (colour dark grey), remove loose & flaking surfaces from railings and redecorate with black gloss paint to match; Pitched roofs: fully renew with new Welsh slates to match original, relay lead gutters, leadwork associated with the re-roofing including dormers, aprons and flashings will be also renewed; Windows and doors: repair frames and redecorate; High level parapets: new lead capping over existing mortar capping where not already existing; Gables: new lead capping over over existing mortar capping to 2 gables; and Chimneys: repairs including renewing the flaunching in matching mortar, replacing cracked pots, brickwork repairs, repairs and repointing of cracked corbels. (Site include Blocks 1-3 Albert Hall Mansions)
-
26/06061/LBC Awaiting decision
Unit 1 Cunard House 15 Regent Street London SW1Y 4LN
Display of non-illuminated vinyl wrap at shopfront glass until 4th December 2026, measuring 3216mm x 2585mm. (Linked with 26/06062/ADV)
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26/06057/LBC Awaiting decision
106 - 108 Regent Street London W1B 5RU
Display of non-illuminated vinyl wrap at shopfront glass until 1st March 2027. (Linked with 26/06087/ADV)
-
26/06053/LBC Awaiting decision
14 Norfolk Square London W2 1RS
Lead flashings to the existing rear lower parapet walls and the front upper cornice at 14-20 Norfolk Square, Paddington.