Belsize Avenue Camden NW3 4AU
Single storey rear extension
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Progress
Application details
- Reference
- 2023/3754/P
- Local authority
- Camden
- Postcode
- NW3 4AU
- Ward
- Frognal
- Application type
- Householder
- Property type
- House
Key dates
- Submitted
- 11 Sept 2023
- Validated
- 11 Sept 2023
- Decided
- 1 May 2024
Estimated project value
£115k–£195k
Based on the 48.0m² of floor area stated in the application, at inner London rates (2026). Source: FMB / Checkatrade 2026, single-storey extension £1,800-£3,000/m².
Floor area gained: 48m²
Recently sold nearby
Inside the two years most owners do their major work — kitchens, bathrooms, rewires and lofts.
- FLAT 2, 22 BELSIZE AVENUE, LONDON, NW3 4AUFlat or maisonette · Leasehold · £545,0009 months ago5 Dec 2025
- 16B BELSIZE AVENUE, LONDON, NW3 4AUFlat or maisonette · Leasehold · £870,0003 years ago10 Jul 2023
- SECOND FLOOR FLAT, 16 BELSIZE AVENUE, LONDON, NW3 4AUFlat or maisonette · Leasehold · Not a standard market sale · £510,0003 years ago19 Dec 2022
- FLAT 4, 26 BELSIZE AVENUE, LONDON, NW3 4AUFlat or maisonette · Leasehold · £530,0003 years ago22 Nov 2022
- FLAT 1, 26 BELSIZE AVENUE, LONDON, NW3 4AUFlat or maisonette · Leasehold · Not a standard market sale · £1,510,0004 years ago8 Aug 2022
- FLAT 6, 26 BELSIZE AVENUE, LONDON, NW3 4AUFlat or maisonette · Leasehold · £531,0005 years ago30 Jun 2021
- REAR SECOND FLOOR FLAT, 16 BELSIZE AVENUE, LONDON, NW3 4AUFlat or maisonette · Leasehold · £575,0007 years ago13 Feb 2019
- FLAT 12, 28 BELSIZE AVENUE, LONDON, NW3 4AUFlat or maisonette · Leasehold · £550,0008 years ago11 May 2018
Homes here go for about £547,500 — the median of the last 6 market sales in NW3 4AU, £530,000 to £870,000.
Contains HM Land Registry data © Crown copyright and database right 2025. This data is licensed under the Open Government Licence v3.0. Sales are matched by postcode, not by property, so a sale listed here may be a neighbouring address. England and Wales only.
Planning constraints
No designations recorded at this location. This is not a formal search — always confirm with the local authority before relying on it.
Designations from planning.data.gov.uk, Open Government Licence v3.0. Indicative only — not a formal local authority search.
Nearby applications
- Belsize Avenue Camden NW3 4AUPermittedNext door
- 16 Belsize Avenue London NW3 4AUUnknownNext door
- Garden Flat 18 Belsize Avenue London NW3 4AUUnknownNext door
- 14 Belsize Avenue London NW3 4AUUnknownNext door
- 20 Belsize Avenue London NW3 4AUUnknownNext door
- Avenue House Belsize Park Gardens London NW3 4LAUnknownAdjoining