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Planning application

Flat 72 Cavendish House 21 Wellington Road London NW8 9SQ

Refused Westminster 25/08896/CLOPUD Certificate of Lawfulness (proposed)

Works: Windows or glazing

Refused. Only the applicant can appeal, within the statutory time limit, and a revised scheme can be submitted instead.

Proposal

The replacement of external windows and doors to terraces and introduction of glass balustrade to both external terraces to increase parapet to legal height.

As published by the council, reference 25/08896/CLOPUD

Application record

Reference
25/08896/CLOPUD
Type
Certificate of Lawfulness (proposed)
Status
Decided
Decision
Refused As published: Application Refused
Received
8 Dec 2025
Validated
8 Dec 2025
Decided
27 Feb 2026
Ward
Abbey Road
Decision by
Delegated Decision
Postcode
NW8 9SQ

Timeline

Dates from the published record

  1. 8 Dec 2025

    Received by Westminster

  2. 27 Feb 2026

    Decision issued: Application Refused

  3. 20 Jul 2026

    Added to PlanIndex

Who's behind it

Company information only, from the register and Companies House

AERT LIMITED Agent

2 applications on PlanIndex · across 2 councils

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Documents

Plans, drawings, consultee responses and the officer's report

9 documents on file for this application

A planning file usually holds the application form, drawings and site plans, consultee responses, the officer's report and the decision notice.

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What this refusal means

Westminster refused this application for the reasons on the decision notice; only the applicant can appeal, and refused schemes often return in revised form. More in our guide to what happens after a planning decision.

About lawful development applications

A lawful development certificate is a legal determination that existing or proposed works do not need planning permission; the merits of the scheme are not considered. More in our guide to planning application types.

Nearby applications

Within 0.3 miles

  • 12 Cavendish Avenue London NW8 9JE

    25/07012/CLLB Submitted 25 Sep 2025 50 yards away

    Internal refurbishment and decorative works.

    Granted 8 docs

  • 8 Cavendish Avenue London NW8 9JE

    26/01096/LBC Submitted 20 Feb 2026 50 yards away

    90% historically approved · decision due ~17 Apr

    Excavation and construction of a new basement; use of the garage for additional internal accommodation; landscaping of front and rear gardens; internal alterations to the property; replacement of windows throughout (part-retrospective) and removal of rear garden house. [Linked to 26/01095/FULL]

    Awaiting decision Heritage and listed buildings Windows or glazing 27 docs

  • 8 Cavendish Avenue London NW8 9JE

    26/01095/FULL Submitted 20 Feb 2026 50 yards away

    88% historically approved · decision due ~17 Apr

    Excavation and construction of a new basement; use of the garage for additional internal accommodation; landscaping of front and rear gardens; internal alterations to the property; Replacement of existing air conditioning condensers with new units; replacement of windows throughout (part-retrospective) and removal of rear garden house. [Linked to 26/01096/LBC]

    Awaiting decision Full applications Windows or glazing 34 docs

  • 8 Cavendish Avenue London NW8 9JE

    26/00689/TPO Submitted 5 Feb 2026 50 yards away

    1 x silver birch (T3, rear): Crown reduce to the previous most recent reduction points, retaining selected shortened furnishing growth (about 0.5m long) for crown continuity.

    Granted Trees 10 docs

  • 6 Cavendish Avenue London NW8 9JE

    26/00573/ADFULL Submitted 2 Feb 2026 50 yards away

    88% historically approved · decision due ~30 Mar

    Details of all new doors, all new windows, bike/bin store, revised front boundary treatment, method statement and landscape areas pursuant to Conditions 5 (A, B and D), 7, 8 and 9 of planning permission dated 13 May 2025 (RN24/04491/FULL) (Linked 26/01128/ADLBC)

    Awaiting decision Full applications Windows or glazing 18 docs

  • 6 Cavendish Avenue London NW8 9JE

    26/01128/ADLBC Submitted 2 Feb 2026 50 yards away

    89% historically approved · decision due ~30 Mar

    Details of all new doors, all new windows, bike/bin store and revised front boundary treatment purusant to Conditions 4 (A, B and D) and 7 of Listed Building Consent dated 13 May 2025 (RN24/04492/LBC) (Linked 26/00573/ADFULL)

    Awaiting decision Conditions Windows or glazing 13 docs

In Westminster

  • 26/07468/CLOPUD Awaiting decision

    14 - 16 Great Portland Street London W1W 8QW

    Confirmation the demolition of the existing outrigger structure at fifth floor level (the Proposed Works) constitutes the lawful commencement of development pursuant to the Permission.

    Received 3 Nov, published by the council 5 Nov 2026 Lawful development
  • 26/07423/CLOPUD Awaiting decision

    103 Elgin Avenue London W9 2NP

    Painting of the decorative stonework, window frames and doors on the front elevation and front boundary wall

    Received 2 Nov, published by the council 4 Nov 2026 Lawful development
  • 26/07454/CLOPUD Awaiting decision

    10 Stratton Street London W1J 8LG

    Changes to existing windows and doors

    Received 2 Nov, published by the council 5 Nov 2026 Lawful development
  • 26/07381/CLEUD Awaiting decision

    Ground Floor Rear Flat 4 Mozart Street London W10 4LA

    Use of the ground floor rear flat as short-term visitor accommodation.

    Received 28 Oct, published by the council 5 Nov 2026 Lawful development
  • 26/07339/CLOPUD Awaiting decision

    123 Victoria Street London SW1E 6DE

    Use of part of ground floor reception area within Class E including, but not limited to, a retail café (Class E(a)).

    Received 27 Oct, published by the council 30 Oct 2026 Lawful development