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Planning application

PP/26/01552

12 St James's Gardens, London, W11 4RD

Awaiting decision Kensington and Chelsea Planning Permission

Proposal

Installation of single-storey lower ground floor rear extension and closet wing rooflight; replacement front lightwell staircase; reinstatement of ground floor partition; replacement windows, cornices, doors and floor finishes; installation of kitchen, two bathrooms and building services throughout.

As published by the council, reference PP/26/01552

Timeline

Dates from the published record

  1. 27 Feb 2026

    Received by Kensington and Chelsea

  2. 1 Aug 2026

    Added to PlanIndex

  3. Decision

    Awaiting decision

    The statutory target is eight weeks for most applications and thirteen for major development. Extensions of time are common.

What happens while it is decided

The process from here

This application is with Kensington and Chelsea for determination. The council publicises it, consults neighbours and technical bodies where required, and weighs the responses against local and national planning policy.

The statutory target is eight weeks for most applications and thirteen for major development, though extensions of time are common. Comments carry most weight while the case is undecided, so check the council portal for the deadline if you want to respond.

About full applications applications

How this application type works

A full application seeks permission for a complete, detailed proposal in one go: siting, design, access and landscaping are all fixed at this stage. It is the standard route for new buildings, conversions and changes of use. The statutory target is eight weeks for smaller schemes and thirteen weeks for major development, though complex cases often take longer by agreement.

More on full applications applications in our guide

Nearby applications

Within 500 metres

  • LB/26/01553 Awaiting decision

    12 St James's Gardens, London, W11 4RD

    Installation of single-storey lower ground floor rear extension and closet wing rooflight; replacement front lightwell staircase; reinstatement of ground floor partition; replacement windows, cornices, doors and floor finishes; installation of kitchen, two bathrooms and building services throughout.

    27 Feb 2026 0m away Heritage and listed buildings
  • LB/23/00787 Withdrawn

    2 St James's Gardens, London, W11 4RB

    Construction of full-width extension at rear lower ground floor level, with flush roof lights and extension of balcony above with metal railings. Internal alterations and installation of condensers in garden. ***WITHDRAWN***

    1 Feb 2023 42m away Heritage and listed buildings
  • PP/23/00786 Withdrawn

    2 St James's Gardens, London, W11 4RB

    Construction of full-width extension at rear lower ground floor level, with flush roof lights and extension of balcony above with metal railings. Internal alterations and installation of condensers in garden. ***WITHDRAWN***

    1 Feb 2023 42m away Full applications
  • CL/25/05809 Granted

    7 Darnley Terrace, London, W11 4RL

    Erection of a garden studio in place of a roofed, pergola structure (Certificate of Proposed Development/Use)

    25 Sep 2025 51m away Lawful development
  • PP/26/01712 Granted

    24 St Ann's Road, London, W11 4SR

    Roof extension

    9 Mar 2026 56m away Full applications
  • LB/25/06261 Withdrawn

    32 St Ann's Villas, London, W11 4RS

    Reversion of vacant school use to 2no. residential dwellings (change of use) with associated internal and external alterations including the formation of a new door on the side elevation at lower ground floor level, subdivision of rear garden and provision of bin and cycle storage. ****Withdrawn by applicant*****

    10 Oct 2025 57m away Heritage and listed buildings

In Kensington and Chelsea

  • PP/18/01985 Withdrawn

    Flat 3, 24 Cornwall Gardens, London, SW7 4AW

    Works to second floor flat including erection of rear extension, creation of external roof terrace areas above and to rear of said extension (with perimeter metal railings), together with internal alterations including removal of internal wall between kitchen and living room, and other refurbishment works

    9 Apr 2018 Full applications
  • PP/26/02078 Granted

    Ruskin House, 35A Hyde Park Gate, London, SW7 5DN

    Installation of 2no. roof mounted ASHPs including acoustic enclosure / screening.

    7 Apr 2026 Full applications
  • PP/26/02247 Withdrawn

    41 Halsey Street, London, SW3 2PT

    Refinements to lower ground floor conservatory and basement extension through removal of low external wall, installation of full height sliding doors, and reinstatement of larger external steps. Replace glazed flat roof at ground floor level with glass-box extension incorporating solid floor structure and internal walk on rooflight. Installation of glazed sliding doors out to a Juliet balcony with metal railings balustrade. Create access from living room by lowering sill of window to form archway; Single-storey extension to closet wing, aligning depth with No.?40 Halsey Street. New timber-framed glazed doors to the rear of extended wing. Widening opening to half-level study within partition to accommodate new double doors. Sunroom will include full-height sliding doors and Juliet balcony with painted or PPC metal balustrades.

    20 Apr 2026 Full applications
  • PP/26/02237 Granted

    134 Brompton Road, London, SW3 1HY and 5 Cheval place, London, SW7 1EW

    Change of use from Use Class E to Restaurant (Use Class E(b)), new recessed front bifolding doors, awning, and signs at front and rear, replace rooflights to double glazed hipped white UPVC/aluminium painted white, replace rear doors to match existing

    17 Apr 2026 Full applications
  • PP/26/02978 Granted

    59A Palace Gardens Terrace, London, W8 4RU

    Variation of Condition 2 (Compliance with approved drawings) of planning permission Ref. PP/24/07747 dated 28th February 2025, to replace proposed front and rear elevation drawings with new proposed drawings representing modest elevational changes of main building at first floor level only.

    4 Jun 2026 Full applications