Planning application
34 Belsize Lane London NW3 5AE
Works: Extension Demolition Windows or glazing
Relates to 2024/1219/P
Permission granted. Work must normally begin within three years of the decision or the permission lapses.
Proposal
Variation of condition 2 (approved drawings) of permission 2024/1219/P (for: Erection of a first-floor extension with green/sedum roof and photovoltaic panels, comprehensive structural and restoration works, new glazed window/doors to garden from southern studio, landscaping works, three areas of green roof to main roof, mechanical ventilation heat recovery and ASHP units) chiefly to demolish the spiral staircase and roof access structure, extend the garage and erect a wall in the garage (part retrospective).
As published by the council, reference 2025/5896/P
Application record
- Reference
- 2025/5896/P
- Type
- Variation or Removal of Condition(s)
- Status
- Final Decision
- Decision
- Granted
- Received
- 31 Dec 2025
- Validated
- 9 Jan 2026
- Decided
- 25 Feb 2026
- Ward
- Belsize
- Decision by
- Delegated
- Postcode
- NW3 5AE
Site history
Applications at this address on the Camden register
This site has had 16 applications since 2018: 12 approved, 0 refused.
-
2025/5718/L Granted
34 Belsize Lane London NW3 5AE
Demolition of spiral staircase and roof access structure, extension of garage and erection of wall in the garage (part retrospective).
-
2025/0489/P Granted
34 Belsize Lane London NW3 5AE
Details submitted in relation to condition 6 (green/sedum roofs) and 10 (PV panels) of planning permission 2024/1219/P dated 06/08/2024 (for: Erection of a first-floor extension with green/sedum roof and photovoltaic panels, comprehensive structural and restoration works, new glazed window/doors to garden from southern studio, landscaping works, three areas of green roof to main roof, mechanical ventilation heat recovery and ASHP units.)
-
2024/5771/L Withdrawn
34 Belsize Lane London NW3 5AE
Demolition of spiral staircase leading to the roof and erection of single-storey extension connecting the garage to the main house.
-
2024/5772/P Withdrawn
34 Belsize Lane London NW3 5AE
Variation of condition 2 (approved drawings) granted under reference 2024/1219/P dated 06/08/2024 for 'Erection of a first-floor extension with green/sedum roof and photovoltaic panels, comprehensive structural and restoration works, new glazed window/doors to garden from southern studio, landscaping works, three areas of green roof to main roof, mechanical ventilation heat recovery and ASHP units.' The variation would demolish the spiral staircase leading to the roof and erect an extension connecting the garage to the main house.
-
2024/5529/L Granted
34 Belsize Lane London NW3 5AE
Details submitted in relation to condition 4 (visible fixing manifestations) of approved application 2024/2957/L dated 11/09/2024 (for: Repair of eastern boundary wall).
-
2024/3606/P Granted
34 Belsize Lane London NW3 5AE
Details submitted in relation to condition 7 (timber joinery relocation) of approved application 2023/1749/L dated 06/08/2024 (for: Erection of a first-floor extension with green/sedum roof and photovoltaic panels, comprehensive structural and restoration works throughout, internal alterations including opening up the kitchen to living room, new bathrooms, new glazed window/doors to garden from southern studio, landscaping works, three areas of green roof to the existing main roof, mechanical ventilation heat recovery and ASHP units.)
-
2024/3502/L Granted
34 Belsize Lane London NW3 5AE
Details submitted in relation to condition 5 (Historic England Level 2 recording) of approved application 2024/1759/L dated 06/07/2024 (for: Erection of a first-floor extension with green/sedum roof and photovoltaic panels, comprehensive structural and restoration works throughout, internal alterations including opening up the kitchen to living room, new bathrooms, new glazed window/doors to garden from southern studio, landscaping works, three areas of green roof to the existing main roof, mechanical ventilation heat recovery and ASHP units.)
-
2024/1219/P Granted
34 Belsize Lane London NW3 5AE
Erection of a first-floor extension with green/sedum roof and photovoltaic panels, comprehensive structural and restoration works, new glazed window/doors to garden from southern studio, landscaping works, three areas of green roof to main roof, mechanical ventilation heat recovery and ASHP units.
-
2024/1759/L Granted
34 Belsize Lane London NW3 5AE
Erection of a first-floor extension with green/sedum roof and photovoltaic panels, comprehensive structural and restoration works throughout, internal alterations including opening up the kitchen to living room, new bathrooms, new glazed window/doors to garden from southern studio, landscaping works, three areas of green roof to the existing main roof, mechanical ventilation heat recovery and ASHP units.
-
2021/3342/P Granted
34 Belsize Lane London NW3 5AE
Clerestory window and flat roof construction over existing mono-pitched roof light with new insulation to roof.
Timeline
Dates from the published record
-
31 Dec 2025
Received by Camden
-
9 Jan 2026
Validated
Checked as complete and ready for consideration.
-
25 Feb 2026
Decision issued: Granted
-
9 Aug 2026
Added to PlanIndex
Related applications
Cases linked to this one on the register
-
2024/1219/P Granted
34 Belsize Lane London NW3 5AE
Erection of a first-floor extension with green/sedum roof and photovoltaic panels, comprehensive structural and restoration works, new glazed window/doors to garden from southern studio, landscaping works, three areas of green roof to main roof, mechanical ventilation heat recovery and ASHP units.
Documents
Plans, drawings, consultee responses and the officer's report
30 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 documentsWhat this grant of permission means
Camden granted permission on 25 February 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 amendment applications
An amendment application makes limited changes to a permission that already exists; anything beyond modest adjustment needs a fresh application. More in our guide to planning application types.
Nearby applications
Within 0.3 miles
-
34 Belsize Lane London NW3 5AE
Demolition of spiral staircase and roof access structure, extension of garage and erection of wall in the garage (part retrospective).
Granted Heritage and listed buildings Extension Demolition 31 docs -
34 Belsize Lane London NW3 5AE
92% historically approved
Details submitted in relation to condition 5 (hard and soft landscaping) of planning permission 2024/1219/P dated 06/08/2024 (for: Erection of a first-floor extension with green/sedum roof and photovoltaic panels, comprehensive structural and restoration works, new glazed window/doors to garden from southern studio, landscaping works, three areas of green roof to main roof, mechanical ventilation heat recovery and ASHP units.)
Awaiting decision Full applications Extension Windows or glazing -
34 Belsize Lane London NW3 5AE
Details submitted in relation to condition 6 (green/sedum roofs) and 10 (PV panels) of planning permission 2024/1219/P dated 06/08/2024 (for: Erection of a first-floor extension with green/sedum roof and photovoltaic panels, comprehensive structural and restoration works, new glazed window/doors to garden from southern studio, landscaping works, three areas of green roof to main roof, mechanical ventilation heat recovery and ASHP units.)
Granted Full applications Extension Windows or glazing -
34 Belsize Lane London NW3 5AE
Details submitted in relation to condition 7 (timber joinery relocation) of approved application 2023/1749/L dated 06/08/2024 (for: Erection of a first-floor extension with green/sedum roof and photovoltaic panels, comprehensive structural and restoration works throughout, internal alterations including opening up the kitchen to living room, new bathrooms, new glazed window/doors to garden from southern studio, landscaping works, three areas of green roof to the existing main roof, mechanical ventilation heat recovery and ASHP units.)
Granted Full applications Extension Windows or glazing -
34 Belsize Lane London NW3 5AE
REAR GARDEN: 1 x Bay (T1)- Crown thin 25-30%. 1 x Eucalyptus (T2) - Reduce height by 1m.
Granted Trees -
34 Belsize Lane London NW3 5AE
Demolition of spiral staircase leading to the roof and erection of single-storey extension connecting the garage to the main house.
Withdrawn Heritage and listed buildings Extension DemolitionSmall domestic
Other amendment applications
In Camden
-
2026/1139/P Granted
25 John Street London WC1N 2BS
Alterations to design of conservatory, windows and doors approved under planning permission 2024/0312/P dated 06/08/2024.
-
2026/4266/P Awaiting decision
Unit 3A Camden Wharf London 28 Jamestown Road NW1 7BY
Variation of the planning permission dated 15.3.1999 (Registered No PE9700702R3) for the redevelopment of the eastern part of the site by the erection of a four-storey building for mixed A1, A3 and B1 and the retention of the lock-keepers cottage as a Canal Information Centre with ancillary retail/ cafe comprising alterations to the elevations, fenestration, shopfront, balustrading, terraces, roof plant and the omission of the approved canopy over the pedestrian area as well as the discharging of part of condition 1 of the said planning permission relating to approval of details of balustrades, shopfronts, the canopy attached to the commercial building and any structure related to it.
-
2026/3366/P Granted
Flat Lower Ground Floor 133 King Henry's Road London NW3 3RD
Variation of condition 2 (approved plans) of planning permission 2025/1032/P dated 23/04/2025 (which amended 2023/5117/P dated 22/03/2024 (for: Erection of single storey rear extension at lower ground floor, new windows to front and side elevations and new front door) NAMELY, changes to front elevation window and materials
-
2026/4223/P Awaiting decision
6 Conybeare London NW3 3SD
Variation of Condition 2 (approved plans) of planning permission ref. 2022/2870/P, dated 13/12/2022, for the erection of a single-storey roof extension and internal roof terrace to the front part of the building, namely to regularise amendments to the approved scheme.
-
2026/4045/P Granted
234 - 240 Grafton Road London NW5 4NS
Non-material amendment to planning permission 2024/4574/P granted 21/01/2026 for 'Erection of mansard roof extension to accommodate 1 x one bedroom and 1 x two bedroom dwellings; erection of a part one part two storey semi-detached one bedroom dwelling within rear garden to Dale Road; new cycle storage within rear garden, installation of 1 x ASHP in rear garden and 2 x ASHP on mansard roof of terrace, alterations to front boundary treatment.' namely to amend windows on the rear elevation of the existing building.