Conversion of part of the basement currently in office use associated with 43 Portland Place (Use Class E) to residential use to extend the existing dwellinghouse at 9 Weymouth Mews (Use Class C3), together with the formation of a new internal staircase connecting the basement to the dwelling, construction of a separating wall, alterations to the rear lightwell elevation and associated internal works. (Linked to 26/07209/LBC)

Nearby applications

Within 0.3 miles — as far back as our records go for this area.

34 Portland Place London W1B 1LX

Details of full details including drawings of the following parts of the new...

Pending

26/07309/ADLBC · 0.1 mi away · 5 days ago

314 - 316 Regent Street London W1B 3BL

Installation of ten fire resisting doorsets at basement and ground levels

Pending

26/07269/LBC · 0.3 mi away · 5 days ago

34 Portland Place London W1B 1LX

Details of glazed panels to staircase showing extent of position and method of fixing...

Pending

26/07255/ADLBC · 0.1 mi away · 6 days ago

103 Marylebone High Street London W1U 4RP

Display of non illuminated fascia sign measuring 0.7m X 0.17m

Pending

26/07252/ADV · 0.3 mi away · 6 days ago

9 Weymouth Mews London W1G 7EA

Formation of a new internal staircase connecting the rear part basement of 43 Portland...

Pending

26/07209/LBC · 0.0 mi away · 1 week ago

Basement East And Ground Floor And First Floor 33 Weymouth Street London W1G 7BY

Replacement of 13 doorsets with fire doors.

Pending

26/07202/LBC · 0.0 mi away · 1 week ago

32 Warren Street London W1T 5PG

Change of use from clinic/office (Class E) to residential (Class C3) at basement and...

Pending

2026/4629/P · 0.3 mi away · 1 week ago

8 Devonshire Close London W1G 7BA

Details of completed Appendix A checklist from the Code of Construction Practice;...

Pending

26/07178/ADFULL · 0.1 mi away · 1 week ago

8 - 10 Hallam Street London W1W 6JE

Details of signed S106 Agreement secures measures to mitigate Grampian re - restrict...

Pending

26/07052/ADFULL · 0.2 mi away · 1 week ago

130 Harley Street London W1G 7JZ

Alterations to the existing building to provide: (i) installation of external plant at...

Pending

26/07057/LBC · 0.2 mi away · 1 week ago

130 Harley Street London W1G 7JZ

Alterations to the existing building to provide: (i) installation of external plant at...

Pending

26/07056/FULL · 0.2 mi away · 1 week ago

Development Site At 47 - 53 Queen Anne Street London W1G 9JG

Installation of a freestanding and counterweighted guardrail around the second-floor...

Pending

26/07038/FULL · 0.2 mi away · 2 weeks ago

The Diorama 17-19 Park Square East London NW1 4LH

Internal alterations comprising infill of doors at basement, ground and third floors...

Pending

2026/3872/L · 0.3 mi away · 2 weeks ago

Abercorn School 38 Portland Place London W1B 1LS

Details of how waste is to be stored on site and how materials for recycling will be...

Pending

26/06997/ADFULL · 0.1 mi away · 2 weeks ago

Elizabeth House 23 Devonshire Street London W1G 6PG

Repair and structural strengthening of existing entrance bridges, including...

Pending

26/06987/FULL · 0.2 mi away · 2 weeks ago

25 Devonshire Street London W1G 6PQ

Alterations to shopfront design including new awning and ventilation grilles; repair...

Pending

26/06995/FULL · 0.2 mi away · 2 weeks ago

33 Devonshire Mews West London W1G 6QF

Confirmation of lawful commencement of works in accordance with planning permission...

Pending

26/06865/CLEUD · 0.2 mi away · 2 weeks ago

72 - 75 Marylebone High Street London W1U 5JW

Installation of three condenser units with associated acoustic enclosure on the flat...

Pending

26/06884/FULL · 0.3 mi away · 2 weeks ago

128 Harley Street London W1G 7JT

Installation of external plant at rear ground and lower ground floor; layout...

Pending

26/06856/LBC · 0.2 mi away · 3 weeks ago

128 Harley Street London W1G 7JT

Installation of external plant at rear ground and lower ground floor; layout...

Pending

26/06855/FULL · 0.2 mi away · 3 weeks ago