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Permitted23/5226/HSESubmitted 2 years agoAnnexe

13 Cadogan Gardens London Borough of Barnet N3 2HN

Part demolition of the existing garage and erection of a granny annexe outbuilding

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Progress

Submitted
7 Dec 2023
— completed
Validated
7 Dec 2023
— completed
Consultation
2 Jan 2024
— completed
Target date
1 Feb 2024
— completed
Decided
9 Feb 2024
— completed

Application details

Reference
23/5226/HSE
Local authority
Barnet
Postcode
N3 2HN
Ward
WF22
Application type
Householder
Property type
House

Key dates

Submitted
7 Dec 2023
Validated
7 Dec 2023
Comments close
2 Jan 2024
Target decision
1 Feb 2024
Decided
9 Feb 2024

Estimated project value

£165k–£275k

Based on the 67.3m² of floor area stated in the application, at inner London rates (2026). Source: trade estimate, annexe £1,800-£3,000/m².

Floor area gained: 67.3 · 1 additional bedrooms

Recently sold nearby

Inside the two years most owners do their major work — kitchens, bathrooms, rewires and lofts. 2 recent sales are listed below.

Homes here go for about £847,500 — the median of the last 8 market sales in N3 2HN, £785,000 to £1,120,000.

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.

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