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Planning application

27 Belsize Square London Camden NW3 4HU

Granted Camden 2026/2246/P Certificate of Lawfulness (Proposed)

Permission granted. Work must normally begin within three years of the decision or the permission lapses.

Proposal

Change of use/amalgmation of 1st floor flat and 2nd floor/attic flat into one flat.

As published by the council, reference 2026/2246/P

Application record

Reference
2026/2246/P
Type
Certificate of Lawfulness (Proposed)
Status
Final Decision
Decision
Granted
Received
2 Jun 2026
Validated
3 Jun 2026
Decided
15 Jul 2026
Ward
Belsize
Decision by
Delegated
Postcode
NW3 4HU

Site history

Applications at this address on the Camden register

This site has had 4 applications since 2024: 4 approved, 0 refused.

  • 2025/1386/P Granted

    27 Belsize Square London Camden NW3 4HU

    Non material amendment to planning permission 2024/4095/P granted on 18/11/2024 and including a replacement rear dormer extension, namely to change consented dormer cladding from lead to lead and slate tiles to match existing

    Decided 14 May 2025 Full applications
  • 2025/0603/P Granted

    27 Belsize Square London Camden NW3 4HU

    Approval of details pursuant to condition 4 (drawings and materials of curved windows in the rear wing) of planning permission 2024/4095/P granted on 18/11/2024 for 'Replacement front and rear dormers, replacement roof tiles, replacement windows (2nd floor level, front and rear), new roof light on side roof slope and window in side elevation (2nd floor), replacement curved windows within curved bay (all levels)'

    Decided 7 Apr 2025 Full applications
  • 2024/4096/P Granted

    27 Belsize Square London Camden NW3 4HU

    Installation of railings on roof of rear, three storey wing and formation of access door within roof slope (to enable use as a terrace).

    Decided 21 Nov 2024 Full applications

Timeline

Dates from the published record

  1. 2 Jun 2026

    Received by Camden

  2. 3 Jun 2026

    Validated

    Checked as complete and ready for consideration.

  3. 15 Jul 2026

    Decision issued: Granted

  4. 24 Jul 2026

    Added to PlanIndex

Documents

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

7 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.

Watch members (£5 a month) open the document list from here.

Open the documents

What this grant of permission means

Camden granted permission on 15 July 2026, subject to any conditions on the decision notice. Work must normally begin within three years or the permission lapses. 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

  • 27 Belsize Square London NW3 4HU

    2024/4095/P 50 yards away

    Replacement front and rear dormers, replacement roof tiles, replacement windows (2nd floor level, front and rear), new roof light on side roof slope and window in side elevation (2nd floor), replacement curved windows within curved bay (all levels)

    Granted Full applications Loft or dormer Roofing +1
  • 27 Belsize Square London Camden NW3 4HU

    2025/0603/P 50 yards away

    Approval of details pursuant to condition 4 (drawings and materials of curved windows in the rear wing) of planning permission 2024/4095/P granted on 18/11/2024 for 'Replacement front and rear dormers, replacement roof tiles, replacement windows (2nd floor level, front and rear), new roof light on side roof slope and window in side elevation (2nd floor), replacement curved windows within curved bay (all levels)'

    Granted Full applications Loft or dormer Roofing +1
  • 27 Belsize Square London Camden NW3 4HU

    2025/1386/P 50 yards away

    Non material amendment to planning permission 2024/4095/P granted on 18/11/2024 and including a replacement rear dormer extension, namely to change consented dormer cladding from lead to lead and slate tiles to match existing

    Granted Full applications Extension Loft or dormer
  • 16 Belsize Square

    2020/1958/P 50 yards away

    Replacement of windows and doors with double glazed windows and doors.

    Withdrawn Full applications Windows or glazing
  • 15 A Belsize Square London NW3 4HT

    2014/3310/T 50 yards away

    (TPO Ref 27H) FRONT GARDEN: 1 x Silver Birch - Reduce back to previous reduction point

    Granted Trees
  • 15 Belsize Square London NW3 4HT

    2020/3559/P 50 yards away

    Conversion of 2 flats at upper ground and 1st floor levels to form 1 self-contained maisonette (Class C3).

    Granted Full applications New dwelling
    Several homes

In Camden

  • 2026/3827/P Granted

    36 Leighton Grove London NW5 2QP

    Replacement of existing timber single-glazed sliding sash windows to front and rear elevations with matching timber heritage-style double-glazed sash windows, and replacement of existing timber front and side entrance doors with like-for-like timber doors.

    Received 1 Sep, published by the council 10 Sep 2026 Lawful development
  • 2026/3047/P Granted

    35 Meadowbank London NW3 3AY

    Erection of a front porch.

    Received 21 Jul, published by the council 24 Jul 2026 Lawful development
  • 2026/3053/P Granted

    18 Courthope Road London NW3 2LB

    Proposed alterations to rear doors on ground floor.

    Received 21 Jul, published by the council 24 Jul 2026 Lawful development
  • 2026/3834/P Awaiting decision

    49 Maitland Park Road London NW3 2HA

    Enclosure of balcony area on front elevation at 1st floor level to provide habitable accommodation ancillary to the existing residential use of the dwellinghouse (Class C3).

    Received 14 Sep, published by the council 17 Sep 2026 Lawful development
  • 2026/3983/P Awaiting decision

    Flat 3 3 Templewood Avenue London NW3 7UY

    Internal alterations to flats 1 and 3 including removal of internal walls

    Received 14 Sep, published by the council 17 Sep 2026 Lawful development