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Planning application

26/03671/CLEUD

Flat B 16 Durham Terrace London W2 5PB

Awaiting decision Westminster Certificate of Lawfulness (existing)

Proposal

Confirmation of the lawful use of the flat roof at the side of the dwelling known as 16B Durham Terrace, London, W2 5PB as a roof terrace ancillary to the residential use of the dwelling.

As published by the council, reference 26/03671/CLEUD

Timeline

Dates from the published record

  1. 4 Jun 2026

    Received by Westminster

  2. 21 Jul 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 Westminster 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 lawful development applications

How this application type works

A lawful development certificate is a legal determination, not a planning judgement. It asks the council to confirm either that existing use or works are lawful, often through the passage of time, or that a proposal would not need planning permission at all. The applicant must prove the facts; the merits of the scheme are not considered.

More on lawful development applications in our guide

Nearby applications

Within 500 metres

  • 25/08722/TCA Granted

    18 Durham Terrace London W2 5PB

    1 x lime (rear): Crown reduction to previous, most recent reduction points and removal of epicormic growth from trunk.

    1 Dec 2025 15m away Trees
  • 25/08723/TCA Granted

    19 Durham Terrace London W2 5PB

    1 x London plane (rear): Crown reduction to previous, most recent reduction points and removal of epicormic growth from trunk.

    1 Dec 2025 19m away Trees
  • 25/08693/FULL Granted

    19 Durham Terrace London W2 5PB

    Replacement rear dormer window at fourth floor level and alterations to fenestration to rear at second floor level. (SITE Flat C)

    28 Nov 2025 20m away Full applications
  • 25/07099/FULL Awaiting decision

    31 Alexander Street London W2 5NU

    Erection of a single storey rear extension at second floor level (above conservatory) and use of roof as a terrace.

    2 Oct 2025 26m away Full applications
  • 26/03265/FULL Awaiting decision

    1A Alexander Mews W2 5NX

    Installation of a new roof terrace with associated acoustic barrier privacy screens & conservation railings painted black.

    18 May 2026 32m away Full applications
  • 25/06270/FULL Granted

    1A Alexander Mews W2 5NX

    Removal of condition 1 of planning permission dated 26 January 1989 (RN: 88/03919/FULL) for Conversion of existing flat into a 1 bedroom self-contained residential property. Namely, to allow the use of garage as residential accommodation (Class C3).

    4 Sep 2025 32m away Full applications

In Westminster

  • 26/04958/CLEUD Awaiting decision

    1 Sussex Square London W2 2SJ

    Use of a building as mixed use as C3 (single residential dwelling) and C1 (short-stay accommodation)

    24 Jul 2026 Lawful development
  • 26/04971/CLOPUD Awaiting decision

    Flat 23 192 Emery Hill Street London SW1P 1PN

    Replacement of the existing single-glazed moving window sashes, casement panels, and balcony door leaves with slimline double-glazed timber units. The existing outer timber frames fixed into the building will be retained and will not be removed or altered. The replacement units will match the existing windows in material, design, glazing bar pattern, opening method, dimensions, and external appearance. No alterations are proposed to the building structure, external walls, openings, or window frame sizes. No new access, alterations to existing access, new streets, hardstandings, means of enclosure, or drainage works are proposed. The precise location and details of the replacement windows are shown on the accompanying drawings.

    24 Jul 2026 Lawful development
  • 26/04832/CLEUD Awaiting decision

    Basement Flat 117 Kilburn Park Road London NW6 5LB

    Use or Development in respect of the detached single-storey outbuilding within the rear garden of the applicants property.

    20 Jul 2026 Lawful development
  • 26/04856/CLOPUD Awaiting decision

    Flat 15 192 Emery Hill Street London SW1P 1PN

    Replacement of the existing single-glazed moving sashes, casement panels, and balcony door leafs with slimline double glazed timber units within the fully retained existing external timber frames.

    20 Jul 2026 Lawful development
  • 26/04632/CLOPUD Awaiting decision

    165 Oliphant Street London W10 4EA

    Installation of solar panels to generate clean, renewable energy from sunlight and reduce reliance on grid electricity and fossil fuels.

    10 Jul 2026 Lawful development