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Planning application

1 Kildare Terrace London W2 5JT

Awaiting decision Westminster 26/04989/FULL Full applications

Works: Extension Loft or dormer Windows or glazing

Still open. Anyone can comment while the consultation period runs, and comments go to the council rather than to us.

Proposal

Erection of a mansard roof extending over the main house and side wing, replacement lower ground rear extension with roof terrace above, lowering of lower ground floor slab, installation of an air source heat pump in rear garden, new front boundary treatment, and new second floor window on the north elevation.

As published by the council, reference 26/04989/FULL

Application record

Reference
26/04989/FULL
Category
Full applications
Status
Pending
Received
24 Jul 2026
Validated
24 Jul 2026
Postcode
W2 5JT

Site history

Applications at this address on the Westminster register

This site has had 2 applications since 2025.

  • 25/09104/FULL Awaiting decision

    1 Kildare Terrace London W2 5JT

    Construction of a mansard roof, a lower ground rear extension with roof terrace above (replacing the existing lower ground extension with roof terrace above), lowering the lower ground floor slab, the installation of an air source heat pump (ASHP) in the rear garden, new front boundary treatment, and new second floor window on north elevation.

    Submitted 16 Dec 2025 Full applications

Timeline

Dates from the published record

  1. 24 Jul 2026

    Received by Westminster

  2. 1 Aug 2026

    Added to PlanIndex

  3. Decision

    Awaiting decision

    Decision expected by 18 September 2026, 8 weeks from validation under the statutory target for most applications. Extensions of time are common and are agreed case by case.

    Westminster took a median of 65 days over the applications it decided in the last year.

What happens while it is decided

This application is with Westminster for determination, against a statutory target of eight weeks. Over the last year Westminster decided full applications in a median of 91 days. More in our guide to how long planning decisions take.

About full applications

A full application seeks permission for a complete, detailed proposal in one go, with siting, design, access and landscaping all fixed at this stage. More in our guide to planning application types.

Nearby applications

Within 0.3 miles

  • 29 Kildare Terrace London W2 5JT

    26/05606/FULL Submitted 17 Aug 2026 0.1 miles away

    87% historically approved · decision due ~23 Oct

    Excavation of basement with external lightwells to rear, full width rear extension at lower ground level, infill rear extension at upper ground level, closet wing extension at second floor level, relocation of rooflights and external alterations.

    Awaiting decision Full applications Extension Loft or dormer
  • 29 Kildare Terrace London W2 5JT

    25/06557/FULL Submitted 15 Sep 2025 0.1 miles away

    Excavation of basement with external lightwells to front and rear; extensions at lower ground, ground and second floor; 2 no. Replacement rooflights to main roof slope and other external alterations.

    Withdrawn Full applications Extension Loft or dormer 39 docs
  • 33 Kildare Terrace London W2 5JT

    25/05500/TPO Submitted 6 Aug 2025 0.1 miles away

    1 x lime (T2, front): Lift crown over highway to 5 m from ground level. Remove epicormic shoots up to crown break ensuring 3 m clearance from ground level over footpath. Reduce crown away from the property giving a 2.5 M clearance. Remove crossing branches from previously reduce branch ends effectively thinning crown by 20%.

    Granted Trees 7 docs
  • 33 Kildare Terrace London W2 5JT

    25/05607/TCA Submitted 6 Aug 2025 0.1 miles away

    1 x Magnolia (T1, rear): Reduce crown on all aspects by 1.5 Metres.

    Granted Trees 7 docs
  • 78 Hereford Road London W2 5AL

    25/06834/TPO Submitted 23 Sep 2025 0.1 miles away

    1 x lime tree (T1, front): reduce crown by about 2 to 2.5m; to the previous most recent reduction points, retaining shortened furnishing growth and at least 50% of fine internal growth.

    Granted Trees 9 docs
  • 86 Hereford Road London W2 5AL

    26/01342/ADFULL Submitted 3 Mar 2026 0.1 miles away

    87% historically approved · decision due ~28 Apr

    Details of brickwork pursuant to Condition 4 of planning permission dated 16 March 2016 (RN: 16/00470/FULL)

    Awaiting decision Full applications 2 docs

In Westminster

  • 26/06295/FULL Awaiting decision

    15 Warwick Way London SW1V 1QT

    Installation of a new shopfront.

    Received 15 Sep, published by the council 17 Sep 2026 Full applications
  • 26/06297/FULL Awaiting decision

    15 Warwick Way London SW1V 1QT

    Alterations to rear elevation at basement level comprising repolacement window and installation of double opening door.

    Received 15 Sep, published by the council 17 Sep 2026 Full applications
  • 26/06234/FULL Awaiting decision

    40 Grosvenor Place London SW1X 7HJ

    Use of lower ground floor of Unit 3 and ground floor of Unit 2 as gym (Class E(d)) and/ or office (Class E(g))

    Received 11 Sep, published by the council 18 Sep 2026 Full applications
  • 26/06249/FULL Awaiting decision

    53 Wimpole Street London W1G 8YH

    Removal and Installation of external rear air condensers and associated pipe work to ground floor, including internal works to ground and first floor. (Linked with 26/06250/LBC)

    Received 11 Sep, published by the council 18 Sep 2026 Full applications
  • 26/03576/FULL Decided

    15A Devonshire Terrace London W2 3DW

    Erection of an infill extension to basement courtyard to form new bedroom and internal alterations. (Linked with 26/03577/LBC)

    Received 1 Jun, published by the council 11 Sep 2026 Full applications