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PermittedPWX0102102Submitted 24 years agoBasement

31 Belsize Avenue Camden NW3 4BL

Change of use of basement and raised ground floor flats into a maisonette together with alterations to the side elevation. As shown on drawing no. 107/01, 02, 03, 04, 05, 06, 07, 08, 13a, 14a, 15, 16a, 17.

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Progress

Submitted
11 Mar 2002
— completed
Validated
11 Mar 2002
— completed
Consultation
—
— completed
Target date
6 May 2002
— completed
Decided
23 Apr 2002
— completed

Application details

Reference
PWX0102102
Local authority
Camden
Postcode
NW3 4BL
Ward
Belsize (Pre May 2022)
Application type
All Other
Property type
Flat

Key dates

Submitted
11 Mar 2002
Validated
11 Mar 2002
Target decision
6 May 2002
Decided
23 Apr 2002

Estimated project value

£135k–£340k

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: trade estimate.

Recently sold nearby

New owners, recently moved in. First work on a house usually follows within months of completing. 4 recent sales are listed below.

Homes here go for about £832,500 — the median of the last 8 market sales in NW3 4BL, £550,000 to £1,200,000.

Contains HM Land Registry data © Crown copyright and database right 2026. 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