Planning application
22/04741/NMA
39 Marylebone High Street London W1U 4QQ
Proposal
Amendments to planning permission 21st June 2022 (RN: 22/01190/FULL) Erection of a rear mansard style roof extension to enlarge dwelling (Class C3) and installation of new double-glazed windows on front and rear elevations of the building. NAMELY; installation of an additional conservation roof light and the use of lead at new flat roof level.
As published by the council, reference 22/04741/NMA
Timeline
Dates from the published record
-
15 Jul 2022
Received by Westminster
-
27 Jul 2022
Decision issued: Application Refused
-
29 Jul 2026
Added to PlanIndex
What refusal means
The process from here
The council refused this application for the reasons set out on the decision notice, which the council portal holds in full. Only the applicant can appeal a refusal; the time limit runs from the decision date and is shorter for householder schemes.
Refusal does not prevent a fresh attempt. Applicants often address the reasons for refusal and resubmit, so a refused scheme is not necessarily the end of proposals for the site.
About amendments applications
How this application type works
An amendment application changes a permission that already exists. Non-material amendments cover small adjustments with no wider effect, while minor material amendments, usually made by varying a condition, allow modest design changes without a fresh application. Anything beyond that needs a new permission, so the scope here is deliberately narrow.
Nearby applications
Within 500 metres
-
26/01102/ADV Granted
36 Marylebone High Street London W1U 4QD
Display of an internally illuminated (letters only) projecting sign measuring 0.25m x 0.5m.
-
25/07445/FULL Awaiting decision
26 - 27 Devonshire Street London W1G 6PH
Variation of condition 5 of planning permission dated 20th December 2023 (RN:23/07525/FULL) which in itself varied condition 5 of planning permission dated 13 December 2021 (RN: 21/07371/FULL) for use of two areas of the public highway measuring 8.3m x 1.5m and 4m x 1.5m for placement of 7 tables, 14 chairs, 2 barriers, 2 bay trees, and 4 planters in connection with the ground floor use (site includes 25-27 Devonshire Street), to allow the continued use of the pavement until 31 October 2025. NAMELY, to allow the use of the public highway for a further 2 year period.
-
25/05859/FULL Awaiting decision
16 Beaumont Mews London W1G 6EJ
Variation of conditions 1 and 13 of planning permission 19 February 2025 (RN: 24/03039/FULL) for the: 'Excavation of single storey basement and the demolition and replacement of the mews building with an additional mansard storey to provide additional residential floorspace including the installation of an air source heat pump at roof level (Class C3)'. Namely, to allow openable side hung windows instead of fixed-shut to the rear (Application under S73 of the Act).
-
25/07149/FULL Awaiting decision
16 Beaumont Mews London W1G 6EJ
Variation of conditions 1 and 4 of planning permission dated 12th June 2024 (RN:24/03039/FULL) for the Excavation of single storey basement and the demolition and replacement of the mews building with an additional mansard storey to provide additional residential floorspace including the installation of an air source heat pump at roof level (Class C3). NAMELY, to allow the retention of the garage space together with associated amendments to the internal layout and external openings; proposed lightwell from ground to basement is omitted; window opening directly onto the front elevation, creating a more active frontage and retained garage will incorporate an EV charging point, secure storage for two bicycles in accordance with the London Plan Policy T5 (Cycling), and adequate refuse storage.
-
26/03548/FULL Awaiting decision
16 Beaumont Mews London W1G 6EJ
Variation of Condition 1 (approved plans) and Condition 2 (Code of Construction Practice) of planning permission 24/03039/FULL dated 19th February 2025 for the 'Excavation of single storey basement and demolition and replacement of the mews building with an additional mansard storey to provide additional residential floorspace including the installation of an air source heat pump at roof level (Class C3)'; namely to allow the development to be carried out in two phases and to secure the submission and approval of the Code of Construction Practice on a phase-specific basis. (Application under Section 73 of the Act).
-
26/03805/ADFULL Awaiting decision
16 Beaumont Mews London W1G 6EJ
Details of new windows and doors; samples (or quality photos/specification details) of the facing materials; plant screen; and sample of the glass pursuant to conditions 7, 8, 9 and 13 of planing permission dated 09 April 2026 (RN: 25/07149/FULL).
Other amendments applications
In Westminster
-
26/04962/NMA Awaiting decision
Serpentine Gallery Kensington Gardens Exhibition Road London W2 3XA
Amendments to planning permission dated 27 February 2025 (RN: 24/08940/FULL) for the installation of temporary art sculpture from 24 March 2025 to 09 September 2025; NAMELY to extend the temporary planning consent until 21st March 2027.
-
26/04951/NMA Awaiting decision
43 - 45 Portman Square London W1H 6LY
Amendments to planning permission dated 22 April 2026 (25/06153/FULL) for: Variation of Condition 1 of planning permission dated 7 April 2025 (24/04987/FULL) for: Partial demolition of the existing roof and removal of plant equipment; construction of a roof extension providing new office (Class E) floorspace with associated external amenity spaces and plant equipment; refurbishment of the existing building, including infilling of the existing atrium; alterations to the existing façade; provision of cycle parking spaces and end of journey facilities, and all associated and ancillary works NAMELY; to amend the wording of Condition 27 to allow basement demolition work to proceed.
-
26/04873/NMA Awaiting decision
Orbis House 5 Mansfield Street London W1G 9NG
Amendments to planning permission dated 05 September 2024 (RN: 24/01895/FULL) for: new courtyard surface including walk-on rooflight; window and door alterations; new window to Mansfield Mews at second floor level; new rooflights; repairs to roof and external brickwork; erection of new staircase in front area lightwell; partial infill of rear lightwell at ground floor level; erection of roof terrace; installation of PV panels at roof level; and associated works namely; to allow provision of guarding system to provide safe access for maintenance across the roof; alteration at south elevation omitting window SFW11 from the new WC, remove the existing RWP from the internal courtyard corner, removal of the existing plastic section of a redundant vent pipe at lower level and retain original lead; new cast iron rain water pipes at west elevation; and internal layout alterations at basement, ground, 2nd, 3rd floors. (Linked with 26/04876/LBC)
-
26/04870/NMA Awaiting decision
34 Park Street London W1K 2JD
Amendments to planning permission dated 8 May 2026 (25/07808/FULL) for general refurbishment and M&E upgrade of the office building namely; roof walkable skylight, GF meeting room wall mounted TV, garden bench and planters, fire lobbies, L4 glass partition, reception to hall door swing change, front lightwell electric cupboard change, wall panelling on LGF and L5, LGF modular screen, LGF courtyard window door infill, and LGF cove lighting.
-
26/04816/NMA Awaiting decision
Ebury Bridge Estate Ebury Bridge Road London SW1W 8PX
Amendments to planning permission dated 21 July 2023 (RN:23/00331/COOUT) for a mixed use development in outline for residential floorspace and ancillary residential facilities (Class C3) non-residential floorspace comprising flexible retail (Classes A1 - A4), community (Class D1), leisure (Class D2) and workspace (Class B1) floorspace; provision of basement; new pedestrian and vehicular access; and associated amenity space, open space, plant, landscaping, car and cycle parking, refuse storage, servicing area, and other associated infrastructure works; and detailed planning consent for Blocks 7 and 8 comprising residential floorspace and ancillary residential facilities (Class C3); provision of a basement; new pedestrian and vehicular access; and associated amenity space landscaping, car and cycle parking, refuse storage, servicing area, and other associated infrastructure works, namely amendments to the approved Masterplan Phasing to incorporate enabling works and piling in Phase 2a and 3a.