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Planning application

Flat Basement Rear 5a Belsize Square London NW3 4HT

Granted Camden 2023/4351/P Certificate of Lawfulness (Proposed)

Works: New dwelling

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

Proposal

Amalgamation of the existing two lower-ground floor flats into one self-contained flat (Use Class C3).

As published by the council, reference 2023/4351/P

Application record

Reference
2023/4351/P
Type
Certificate of Lawfulness (Proposed)
Status
Final Decision
Decision
Granted
Received
11 Oct 2023
Validated
9 Nov 2023
Decided
21 Nov 2023
Ward
Belsize
Decision by
Delegated
Postcode
NW3 4HT

Site history

Applications at this address on the Camden register

This site has had 4 applications since 2023: 4 approved, 0 refused.

  • 2024/0630/T Granted

    Flat Basement Rear 5a Belsize Square London NW3 4HT

    REAR GARDEN: 1 x Sycamore (T1) - Reduce height by 3m and lateral spread by 2.5m. 1 x Yew (T2) - Reduce height by 1.5m and lateral spread by 1.5m. 1 x Apple (T3) - Remove a limb pushing fence and thin out by 25%. 1 x Birch (T4) - Reduce height by 0.5m and crown lift by 1.5m. 1 x Bay (T5) - Crown lift by 2m and reduce height by 0.5m.

    Decided 9 Apr 2024 Trees
  • 2023/5435/P Granted

    Flat Basement Rear 5a Belsize Square London NW3 4HT

    Details to discharge Condition 4 (Green Roof) of planning permission 2023/4525/P dated 13/12/2023 for 'Demolition of existing lower ground-floor single-storey rear extension. Erection of single-storey lower-ground floor rear extension, and associated external alterations'.

    Decided 28 Jan 2024 Full applications
  • 2023/4525/P Granted

    Flat Basement Rear 5a Belsize Square London NW3 4HT

    Demolition of existing lower ground-floor single-storey rear extension. Erection of single-storey lower-ground floor rear extension, and associated external alterations.

    Decided 13 Dec 2023 Full applications

Timeline

Dates from the published record

  1. 11 Oct 2023

    Received by Camden

  2. 9 Nov 2023

    Validated

    Checked as complete and ready for consideration.

  3. 21 Nov 2023

    Decision issued: Granted

  4. 22 Jul 2026

    Added to PlanIndex

Documents

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

10 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 21 November 2023, 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

  • Flat Basement Rear 5a Belsize Square London NW3 4HT

    2023/4525/P Submitted 20 Oct 2023 50 yards away

    Demolition of existing lower ground-floor single-storey rear extension. Erection of single-storey lower-ground floor rear extension, and associated external alterations.

    Granted Full applications Extension Demolition 12 docs
    Small domestic
  • Flat 2, Basement Rear 5 Belsize Square London NW3 4HT

    2010/3130/P 50 yards away

    The erection of a single storey rear extension (the existing rear extension would be demolished), the enlargement of an existing window on the side elevation, and the creation of a new window to an existing lower ground floor flat (Class C3).

    Granted Full applications Extension Demolition +1
    Small domestic
  • Flat Basement Rear 5a Belsize Square London NW3 4HT

    2024/0630/T Submitted 16 Feb 2024 50 yards away

    REAR GARDEN: 1 x Sycamore (T1) - Reduce height by 3m and lateral spread by 2.5m. 1 x Yew (T2) - Reduce height by 1.5m and lateral spread by 1.5m. 1 x Apple (T3) - Remove a limb pushing fence and thin out by 25%. 1 x Birch (T4) - Reduce height by 0.5m and crown lift by 1.5m. 1 x Bay (T5) - Crown lift by 2m and reduce height by 0.5m.

    Granted Trees 3 docs
    Small domestic
  • Flat Basement Rear 5a Belsize Square London NW3 4HT

    2023/5435/P Submitted 22 Dec 2023 50 yards away

    Details to discharge Condition 4 (Green Roof) of planning permission 2023/4525/P dated 13/12/2023 for 'Demolition of existing lower ground-floor single-storey rear extension. Erection of single-storey lower-ground floor rear extension, and associated external alterations'.

    Granted Full applications Extension Demolition 4 docs
    Small domestic
  • 5a Belsize Square London NW3 4HT

    2025/0656/P 50 yards away

    Erection of single storey outbuilding in rear garden.

    Granted Full applications
    Small domestic
  • 5A Belsize Square London NW3 4HT

    2010/5247/T 50 yards away

    REAR GARDEN: 2 x Sycamore - Reduce/remove lowest branch of left hand tree and crown thin both by 15-20% 1 x Yew - Crown reduce up to 3m (amendment agreed and confirmed by Tomlinsons Tree Surgeons on 19/11/2010)

    Granted Trees

In Camden

  • 2026/4314/P Awaiting decision

    Basement Flat & Flat Raised Ground Floor 46 Primrose Hill Road London NW3 3AA

    Amalgamation of two self-contained flats to form a self-contained maisonette on lower ground and raised ground floor.

    Received 6 Oct, published by the council 9 Oct 2026 Lawful development
  • 2026/4304/P Awaiting decision

    68 Clarence Way London NW1 8DG

    Erection of single storey outbuilding in rear garden.

    Received 2 Oct, published by the council 9 Oct 2026 Lawful development
  • 2026/3821/P Granted

    Plots B, C and D at Highgate Studios Highgate Road London NW5 1TL

    Certificate of Lawful Development to confirm the lawful use of the site is for office use (Class E(g)(i)) and that the use of the site as a gym (Class E(d)) or any other use falling within Class E would be lawful.

    Received 4 Sep, published by the council 11 Sep 2026 Lawful development
  • 2026/3389/P Granted

    99 Heath Street London NW3 6SS

    Confirmation of the implementation of planning permission 2007/3874/P granted, subject to a legal agreement dated 06/12/2007 for 'Change of use from offices (A2) to single family dwellinghouse (C3), the erection of extension at rear ground floor level within courtyard and formation of a terrace over, extension at ground floor level to western end of courtyard, creation of off-street open car parking space and minor elevational changes to The Mount elevation.', by way of erection of the extension at ground floor level to the western end of the courtyard, creation of an off-street car parking space, and minor elevational changes to the Mount elevation.

    Received 7 Aug, published by the council 15 Aug 2026 Lawful development
  • 2026/2493/P Granted

    8 Fitzroy Road London Camden NW1 8TX

    Use of the entire building for a single-family home (C3 residential).

    Received 16 Jun, published by the council 24 Jul 2026 Lawful development