19 Mallord Street, LONDON, SW3 6AP

CON/25/03628Approval of details reserved by a condition (discharge)Permitted

Discharge / amendments

Proposal

Details required by condition 23 (Travel Plan) of planning permission 20/04812 (Change of use of basement, ground and three upper storeys from former telephone exchange (Sui Generis) to new health and fitness club; creation of small single storey rear extension at basement level; excavation for a swimming pool at basement level; alterations to entrances and external paving; and other works and improvements to building.)

Received: 10 June 2025
Decided: 25 July 2025
Council: Royal Borough of Kensington and Chelsea

Approximate site (title boundary)

Boundary © HM Land Registry, © Ordnance Survey · details

This information is subject to Crown copyright and database rights 2026 and is reproduced with the permission of HM Land Registry. The polygons (including the associated geometry, namely x, y co-ordinates) are subject to Crown copyright and database rights 2026 Ordnance Survey AC0000851063. Conditions of use.

ReceivedSubmitted10 Jun
ValidatedValidated
Consult.Consultation
TargetTarget Date
DecidedDecided25 Jul

Decided in 45 days (council typically 56)

8 weeks typical decision time in Kensington98% of approval of details reserved by a condition (discharge) applications approved

This is a planning application for a single storey rear extension at 19 Mallord Street, LONDON, SW3 6AP. Kensington has handled 626 applications of this type and approves nearly all of them, typically deciding them in 56 days. This one was decided in 45 days, 11 days quicker than Kensington's median. The site is in a conservation area, with 6 listed buildings nearby. There have been 5 other applications at this address. In the past year there have been 92 applications across Stanley. We hold 1,475 applications in total for the SW3 postcode area.

Application Details

Reference

CON/25/03628

Address

19 Mallord Street, LONDON, SW3 6AP

Postcode

SW3 6AP

Local Authority

Kensington

Application Type

Approval of details reserved by a condition (discharge)

Decision Status

Permitted

Applicant & Agent

Planning Application Dates

Date Decided

25 July 2025

Date Submitted

10 June 2025

Planning Decision

Publicity

Appeal

Additional Information

Coordinates

51.485443, -0.174729

Enriching application data

2/3

Council recordsAppealsFlood risk

Source: Kensington

Contains public sector information from the Planning London Datahub, licensed under the Open Government Licence v3.0.

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Associated applications

2025
10 Jun
Details required by condition 23 (Travel Plan) of planning permission 20/04812
This applicationApprovedDischarge of conditionsCON/25/03628
2025
10 Jun
Details required by condition 4a (Delivery and Service Management Plan) of planning permission 20/04812
ApprovedDischarge of conditionsFiled alongsideCON/25/03629

Planning history at this site

14 other applications at this property, newest first.

Planning constraints

Designations that overlap or adjoin the site outline.

Conservation area: Chelsea Park/Carlyle
Listed building: Grade II: 9-15, Mallord Street Sw3On or next to this site
Article 4 direction: Article 4 - No 100+1 more
Tree Preservation OrderCovers the site
Flood zone 1: Low probability (rivers and sea)

Also checked, none recorded (20)

flood storage areas, green belt, scheduled monuments, World Heritage Sites, World Heritage Site buffer zones, registered parks and gardens, registered battlefields, Heritage at Risk entries, nutrient neutrality catchments, national parks, National Landscapes, SSSIs, Special Areas of Conservation, Special Protection Areas, Ramsar sites, ancient woodland, national nature reserves, local nature reserves, heritage coasts and brownfield registers.

A guide only, from official open data; it is not a planning search. Flood zones cover rivers and sea, not surface water.

© Historic England 2026. Contains Ordnance Survey data © Crown copyright and database right 2026. The Historic England GIS Data contained in this material was obtained on 2026-10-09. The most publicly available up to date Historic England GIS Data can be obtained from HistoricEngland.org.uk.

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