Planning application
23 Hornby Close London NW3 3JL
Works: Extension
Relates to 2025/2561/P
Permission granted. Work must normally begin within three years of the decision or the permission lapses.
Proposal
Details required by condition 5 (green roof) of planning permission 2025/2561/P dated 22/08/2025 (for: Upwards extension for additional storey at roof level and rear extension at ground floor level).
As published by the council, reference 2026/3187/P
Application record
- Reference
- 2026/3187/P
- Type
- Approval of Details
- Status
- Final Decision
- Decision
- Granted
- Received
- 28 Jul 2026
- Validated
- 30 Jul 2026
- Decided
- 25 Aug 2026
- Ward
- Primrose Hill
- Decision by
- Delegated
- Postcode
- NW3 3JL
Site history
Applications at this address on the Camden register
This site has had 3 applications since 2016: 3 approved, 0 refused.
-
2025/2561/P Granted
23 Hornby Close London NW3 3JL
Upwards extension for additional storey at roof level and rear extension at ground floor level.
-
2016/4993/P Granted
23 Hornby Close London NW3 3JL
Erection of single storey rear extension and insertion of new window to the ground floor front elevation.
Timeline
Dates from the published record
-
28 Jul 2026
Received by Camden
-
30 Jul 2026
Validated
Checked as complete and ready for consideration.
-
2 Aug 2026
Added to PlanIndex
-
25 Aug 2026
Decision issued: Granted
Related applications
Cases linked to this one on the register
-
2025/2561/P Granted
23 Hornby Close London NW3 3JL
Upwards extension for additional storey at roof level and rear extension at ground floor level.
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.
Trade members open them from here.
Open the documentsWhat this grant of permission means
Camden granted permission on 25 August 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
-
23 Hornby Close London NW3 3JL
Erection of single storey rear extension and insertion of new window to the ground floor front elevation.
Granted Full applications Extension Windows or glazingSmall domestic -
23 Hornby Close London NW3 3JL
Upwards extension for additional storey at roof level and rear extension at ground floor level.
Granted Full applications Extension -
22 Hornby Close Belsize Park London NW3 3JL
Insertion of a new window to the ground floor front elevation of the existing single family dwelling house (Class C3).
Granted Full applications Windows or glazingDomestic -
21 Hornby Close London NW3 3JL
Conversion of garage into habitable space with associated external alterations and installation of bi-folding doors to the rear.
Granted Full applications Windows or glazing -
25 Hornby Close London NW3 3JL
Erection of a single storey rear extension dwellinghouse
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141 Fellows Road London NW3 3JJ
Erection of a single storey extension to the rear of existing dwelling house (C3)
Granted Full applications ExtensionSmall domestic
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