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Planning application

Garden Flat 25 Lancaster Grove London NW3 4EX

Granted Camden 2025/5477/P Full Planning Permission

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

Proposal

Erection of a garden room at rear

As published by the council, reference 2025/5477/P

Application record

Reference
2025/5477/P
Type
Full Planning Permission
Status
Final Decision
Decision
Granted
Received
2 Dec 2025
Validated
4 Dec 2025
Decided
14 May 2026
Ward
Belsize
Decision by
Delegated
Postcode
NW3 4EX

Site history

Applications at this address on the Camden register

This site has had 3 applications since 2025: 1 approved, 0 refused.

  • 2026/3432/P Awaiting decision

    Garden Flat 25 Lancaster Grove London NW3 4EX

    Green roof details and tree protection details required by conditions 3 and 4 of planning permission reference 2025/5477/P granted 14/05/2026 for the erection of a garden room at rear.

    Submitted 11 Aug 2026 Full applications
  • 2026/3587/06BGP Awaiting decision

    Garden Flat 25 Lancaster Grove London NW3 4EX

    Biodiversity Gain Plan (BGP) required by planning permission reference 2025/5477/P granted 14/05/2026 for the erection of a garden room at rear.

    Submitted 11 Aug 2026

Timeline

Dates from the published record

  1. 2 Dec 2025

    Received by Camden

  2. 4 Dec 2025

    Validated

    Checked as complete and ready for consideration.

  3. 14 May 2026

    Decision issued: Granted

  4. 9 Aug 2026

    Added to PlanIndex

Cases linked to this one on the register

2 later applications on the register refer to this one:

  • 2026/3432/P Awaiting decision

    Garden Flat 25 Lancaster Grove London NW3 4EX

    Green roof details and tree protection details required by conditions 3 and 4 of planning permission reference 2025/5477/P granted 14/05/2026 for the erection of a garden room at rear.

    Submitted 11 Aug 2026 Full applications
  • 2026/3587/06BGP Awaiting decision

    Garden Flat 25 Lancaster Grove London NW3 4EX

    Biodiversity Gain Plan (BGP) required by planning permission reference 2025/5477/P granted 14/05/2026 for the erection of a garden room at rear.

    Submitted 11 Aug 2026

Documents

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

16 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.

Trade members open them from here.

Open the documents

What this grant of permission means

Camden granted permission on 14 May 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 full applications

A full application seeks permission for a complete, detailed proposal in one go, with siting, design, access and landscaping all fixed at this stage. More in our guide to planning application types.

Nearby applications

Within 500 metres

  • 25 Lancaster Grove London NW3 4EX

    2012/2698/P 0m away

    Change of use from six self-contained flats to a single-family dwellinghouse (Class C3).

    Refused Full applications New dwelling
    Domestic
  • 25 Lancaster Grove London NW3 4EX

    2015/0356/P 0m away

    Single storey rear extension to lower ground floor; creation of a rear roof terrace to ground floor flat; enlargement of lower ground floor unit to a 3 bed flat and ground floor unit to a 2 bed flat; additional side windows at lower ground floor level and associated works.

    Granted Full applications Extension Windows or glazing
    Small domestic
  • Garden Flat 25 Lancaster Grove London NW3 4EX

    2026/3432/P Submitted 11 Aug 2026 0m away

    91% historically approved · decision due ~15 Oct

    Green roof details and tree protection details required by conditions 3 and 4 of planning permission reference 2025/5477/P granted 14/05/2026 for the erection of a garden room at rear.

    Awaiting decision Full applications Trees 11 docs
  • Garden Flat 25 Lancaster Grove London NW3 4EX

    2026/3587/06BGP Submitted 11 Aug 2026 0m away

    94% historically approved · decision due ~15 Oct

    Biodiversity Gain Plan (BGP) required by planning permission reference 2025/5477/P granted 14/05/2026 for the erection of a garden room at rear.

    Awaiting decision 5 docs
  • 25 Lancaster Grove London NW3 4EX

    2015/3412/P 0m away

    Proposed conversion of 1no. one-bedroom flat and 1no. studio flat into 1no. two-bedroom flat at first floor level.

    Granted Full applications
  • 25 Lancaster Grove London NW3 4EX

    2014/0360/P 0m away

    Conversion of lower ground floor and ground floor flats (1 x 1 bed and 1 x 2 bed) to a 4 bed maisonette and erection of single storey lower ground floor rear extension.

    Granted Full applications New dwelling Extension
    Small domestic

In Camden

  • 2026/2516/P Withdrawn

    31 Loveridge Road London Camden NW6 2DU

    Amalgamation of the existing three self-contained one-bedroom flats into a single-family dwelling house; demolition and replacement of existing outrigger; erection of a single-storey rear wrap-around extension; erection of a rear dormer extension; creation of a roof terrace above outrigger; replacement of existing windows with timber double glazed units; installation of rooflights to front roofslope; and installation of an air source heat pump in rear garden.

    16 Jun 2026 Full applications
  • 2026/3830/P Awaiting decision

    Euston Tower 286 Euston Road London NW1 3DP

    Deed of variation to allow more flexibility with Affordable housing payments for redevelopment of Euston Tower comprising retention of parts of the existing building (including central core, basement and foundations) and erection of a new building incorporating these retained elements, to provide a 32-storey mixed-use building providing offices and research and development floorspace (Class E(g)) and office, retail, café and restaurant space (Class E) and Enterprise Space (Class E/F) at ground and first floors, and associated external terraces; public realm enhancements, including new landscaping and provision of new publicly accessible steps and ramp; short and long stay cycle storage; servicing; refuse storage; plant and other ancillary and associated work.

    4 Sep 2026 Full applications
  • 2026/3282/P Granted

    5 Berkley Road London NW1 8XX

    Installation of 1no. above ground gas riser from the basement flat to the meter box at first floor (retrospective)

    31 Jul 2026 Full applications
  • 2026/0483/P Granted

    100 Avenue Road London NW3 3HF

    Discharge of details for condition 47 (surface water run off details) of planning permission 2026/0404/P granted on 19/06/2026 for " Variation of conditions (2 plan numbers); 8 (quantum of commercial space); 13 (commercial windows); 15 (Wind Microclimate); 19 (commercial windows); 24 (Air quality); 34 (development quantum); 40 (Circular Economy); 44 (designing out crime); 45 (Fire Strategy); 46 (SuDS); 48 (Community facility removed), 48 (wheelchair units), 49 (TfL health and safety) to planning permission ref. 2025/0852/P (for demolition of building and provision of a mixed-use residential-led development) to secure alterations to the external appearance; internal residential and commercial space layouts; omission of community floorspace and increased affordable housing provision; cycle and car parking; hard and soft landscaping, and other associated amendments”

    9 Feb 2026 Full applications
  • 2026/2697/P Awaiting decision

    Flat 1, 73 Eton Avenue London NW3 3EU

    Replacement of existing defective rear lean-to conservatory with a new slimline powder-coated aluminium framed conservatory with clear double glazing, on the exact same footprint as existing.

    3 Sep 2026 Full applications