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Planning application

26/00550/CLOPUD

39 Broadley Terrace London NW1 6LG

Refused Westminster Certificate of Lawfulness (proposed)

Proposal

Proposed 3m single storey side extension

As published by the council, reference 26/00550/CLOPUD

Timeline

Dates from the published record

  1. 30 Jan 2026

    Received by Westminster

  2. 24 Mar 2026

    Decision issued: Application Refused

  3. 21 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 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

  • 26/02871/FULL Awaiting decision

    39 Broadley Terrace London NW1 6LG

    Erection of a single-storey side and rear extension, conversion of existing garage into habitable accommodation, and installation of a lift to serve all floors, together with associated internal alterations.

    30 Apr 2026 6m away Full applications
  • 25/06029/CLEUD Granted

    Second Floor Flat 2 Rossmore Road London NW1 6NJ

    Existing use of the roof above Flat 2 as a roof terrace for Flat 3.

    22 Aug 2025 48m away Lawful development
  • 26/02077/LBC Awaiting decision

    Ground Floor 116 Lisson Grove London NW1 6UP

    Excavation of basement below building, with lightwell to Lisson Grove and restoration of existing facades. (Linked with 26/02076/FULL)

    30 Mar 2026 67m away Heritage and listed buildings
  • 26/02076/FULL Awaiting decision

    Ground Floor 116 Lisson Grove London NW1 6UP

    Excavation of basement below building, with lightwell to Lisson Grove and restoration of existing facades. (Linked with 26/02077/LBC)

    30 Mar 2026 67m away Full applications
  • 25/07073/COFUL Awaiting decision

    61 Harewood Avenue London NW1 6PA

    Change of use from "Meals on Wheels" Distribution Hub (Sui Generis) to Street Cleansing Vehicle Depot (Sui Generis); internal and external alterations to the building to provide bin store and cycle store and elevational changes; provision of new plant and services and other associated works.

    1 Oct 2025 105m away Full applications
  • 25/08354/LBC Awaiting decision

    119 Lisson Grove London NW1 6UP

    Installation of telecommunications cabling and associated small termination box (FDP) on the lower front elevation of the property to facilitate fibre broadband service provision. Works include the routing of external fibre cabling from a pavement node, through the boundary wall, and along the internal side of the party wall adjacent to the entrance staircase. The termination box (approx. 150mm x 150mm) has been surface-mounted near the base of a rainwater downpipe to minimise visual impact. From this termination point, a discrete cable enters the lower ground floor flat via a small, drilled hole at low level to provide service to this customer. No decorative features have been damaged. A potential future provision of two additional connections to provide service to the upper flats will follow similar discreet routes from the FDP if requested. (Retrospective)

    14 Nov 2025 121m away Heritage and listed buildings

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