48 Fitzroy Street 21-23 Grafton Mews London W1T 5BS

1. 30 Oct 2018

   Decision issued: Granted

2. 22 Jul 2026

   Added to PlanIndex

• 2017/6044/L Granted

  48 Fitzroy Street and 21-23 Grafton Mews London W1T

  Replacement of 2nd floor mansard storey at 21-23 Grafton Mews by new brick built roof extension plus 2nd floor rear extension and external alterations to fenestration at front and rear; internal alterations to lower and upper ground floors of 48 Fitzroy Street and changes in fenestration to rear; all associated with the change of use of the second floor flat at Grafton Mews to Class B1 offices and the change of use of the basement and ground floor offices at 48 Fitzroy Street to a 2 bed maisonette (Class C3).

  Decided 12 Jan 2018 Heritage and listed buildings

Camden granted permission on 30 October 2018, 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.

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.

• 48 Fitzroy Street 21-23 Grafton Mews London W1T

  2018/2768/P 0m away

  Details of secure and covered cycle storage areas for 12 cycles pursuant to condition 5 of planning permission 2017/4915/P for: Replacement of 2nd floor mansard storey at 21-23 Grafton Mews by new brick built roof extension plus 2nd floor rear extension and external alterations to fenestration at front and rear, and changes in fenestration to rear of 48 Fitzroy Street, all associated with the change of use of the second floor flat at Grafton Mews to Class B1 offices and the change of use of the basement and ground floor offices at 48 Fitzroy Street to a 2 bed maisonette.

  Granted Full applications Extension Loft or dormer +1

• 48 Fitzroy Street 21-23 Grafton Mews London W1T

  2018/2769/P 0m away

  Details of facing materials and fenestration for the front elevation of the office block at Grafton Mews pursuant to condition 2 of 2017/4915/P for: Replacement of 2nd floor mansard storey at 21-23 Grafton Mews by new brick built roof extension plus 2nd floor rear extension, and external alterations to fenestration, all associated with the change of use of the second floor flat at Grafton Mews to Class B1 offices and the change of use of the basement and ground floor offices at 48 Fitzroy Street to a 2 bed maisonette.

  Granted Full applications Extension Loft or dormer +1

• 48 Fitzroy Street and 21-23 Grafton Mews London W1T

  2017/4915/P 0m away

  Replacement of 2nd floor mansard storey at 21-23 Grafton Mews by new brick built roof extension plus 2nd floor rear extension and external alterations to fenestration at front and rear, and changes in fenestration to rear of 48 Fitzroy Street, all associated with the change of use of the second floor flat at Grafton Mews to Class B1 offices and the change of use of the basement and ground floor offices at 48 Fitzroy Street to a 2 bed maisonette (Class C3).

  Granted Full applications Extension Loft or dormer +1

• 48 Fitzroy Street and 21-23 Grafton Mews London W1T

  2017/6044/L 0m away

  Replacement of 2nd floor mansard storey at 21-23 Grafton Mews by new brick built roof extension plus 2nd floor rear extension and external alterations to fenestration at front and rear; internal alterations to lower and upper ground floors of 48 Fitzroy Street and changes in fenestration to rear; all associated with the change of use of the second floor flat at Grafton Mews to Class B1 offices and the change of use of the basement and ground floor offices at 48 Fitzroy Street to a 2 bed maisonette (Class C3).

  Granted Heritage and listed buildings Extension Loft or dormer +1

• 10 Fitzroy Square London W1T 5HP

  2015/2211/P 11m away

  Change of use of part rear ground and part rear first floor from office (Class B1) to 1-bed maisonette (Class C3)

  Granted Full applications

• 10 Fitzroy Square London W1T 5HP

  2015/2685/L 11m away

  Change of use from office (B1) to 1 x residential unit (C3) at part ground and part 1st floor levels.

  Withdrawn Heritage and listed buildings

• 2026/0825/L Granted

  88 Frognal London NW3 6XB

  Discharge of condition 4 (a) Plan, elevation and section drawings of all new internal doors at a scale of 1:10 with typical moulding and architrave details at a scale of 1:1. b) Plan, elevation and section drawings, including jambs, head and cill, of all new windows and doors, including garage doors and windows, at a scale of 1:10 with typical glazing bar details at 1:1) of 2025/3436/L (External works comprising demolition of existing conservatory and erection of single-storey ground floor extension; demolition of existing garage and erection of replacement garage; alterations and repairs to roof; repair and minor alterations to building facade; provision of new hard and soft landscaping. Interior works comprising general remodelling works; minor changes to planform and openings; installation of new mechanical and electrical services throughout)

  2 Mar 2026 Heritage and listed buildings
• 2026/2946/L Awaiting decision

  Flat 1, 73 Eton Avenue London NW3 3EU

  Replacement of existing defective rear lean-to conservatory with a new slimline powder-coated aluminium framed conservatory with clear double glazing, on the exact same footprint as existing.

  3 Sep 2026 Heritage and listed buildings
• 2026/3754/L Awaiting decision

  10 Great Ormond Street London Camden WC1N 3RB

  Coversion of 3 flats into 4 and internal alterations to the listed building

  2 Sep 2026 Heritage and listed buildings
• 2026/2194/L Withdrawn

  Dunboyne Road Estate Dunboyne Road London NW3 2YY

  Installation of Air Source and Water Source Heat Pumps in basement car park with associated acoustic and security enclosures; installation of PV Panels on roof of Blocks 1, 2 and 3; removal of existing gas boilers and associated plant; installation of a new estate-wide heating network including Heat Interface Units, radiators, pipework and associated infrastructure to serve Flats 1-71; excavation of trenches and installation of below-ground heating, water and electrical infrastructure; and associated ancillary works.

  29 May 2026 Heritage and listed buildings
• 2026/3773/L Awaiting decision

  47 Kelly Street London NW1 8PG

  Replacement of concrete roof tiles with slate roof tiles (Retrospective)

  28 Aug 2026 Heritage and listed buildings