18 BELSIZE PARK Camden NW3 4DU
Change of use of second/third floor level maisonette to two self-contained flats (1 x 3-bed and 1 x 1-bed) and installation of two dormer windows on side roofslope (Class C3).
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Progress
Application details
- Reference
- 2011/5181/P
- Local authority
- Camden
- Postcode
- NW3 4DU
- Ward
- FROGNAL AND FITZJOHNS
- Application type
- All Other
- Property type
- Flat
Key dates
- Decided
- 3 Jan 2012
Estimated project value
£37k–£100k
Typical UK cost for this job type, at inner London rates (2026). Estimated from the proposal description — planning applications do not state build cost. Source: Checkatrade 2026 loft conversion cost guide.
Recently sold nearby
Inside the two years most owners do their major work — kitchens, bathrooms, rewires and lofts. 4 recent sales are listed below.
- 18E BELSIZE PARK, LONDON, NW3 4DUFlat or maisonette · Leasehold · £725,00014 months ago4 Jul 2025
- 19D BELSIZE PARK, LONDON, NW3 4DUFlat or maisonette · Leasehold · Not a standard market sale · £1,087,00019 months ago17 Jan 2025
- FLAT 6, 24 BELSIZE PARK, LONDON, NW3 4DUFlat or maisonette · Leasehold · £755,00021 months ago29 Nov 2024
- 19C BELSIZE PARK, LONDON, NW3 4DUFlat or maisonette · Leasehold · £1,550,00021 months ago19 Nov 2024
- 19A BELSIZE PARK, LONDON, NW3 4DUFlat or maisonette · Leasehold · £625,0002 years ago6 Sept 2024
- 19B BELSIZE PARK, LONDON, NW3 4DUFlat or maisonette · Leasehold · £800,0002 years ago6 Sept 2024
- FLAT 6, 23 BELSIZE PARK, LONDON, NW3 4DUFlat or maisonette · Leasehold · £1,000,0002 years ago2 May 2024
- FLAT 11, 27 BELSIZE PARK, LONDON, NW3 4DUFlat or maisonette · Leasehold · £615,0002 years ago21 Dec 2023
Homes here go for about £755,000 — the median of the last 7 market sales in NW3 4DU, £615,000 to £1,550,000.
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
- Flat A 18 Belsize Park London NW3 4DUUnknownNext door
- Belsize Park Camden NW3 4DUPermittedNext door
- Flat A 19 Belsize Park London NW3 4DUPermittedNext door
- 20 Belsize Park London NW3 4DUUnknownAdjoining
- 20 Belsize Park London NW3 4DUUnknownAdjoining
- Belsize Avenue Camden NW3 4BLPermittedAdjoining