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Refused25/4892/192Submitted 9 months agoOutbuilding

31 Allandale Avenue London Borough of Barnet N3 3PY

Erection of a rear outbuilding

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Progress

Submitted
5 Dec 2025
— completed
Validated
5 Dec 2025
— completed
Consultation
— completed
Target date
30 Jan 2026
— completed
Decided
14 Jan 2026
— completed

Application details

Reference
25/4892/192
Local authority
Barnet
Postcode
N3 3PY
Ward
FC22
Application type
All Other
Property type
House

Key dates

Submitted
5 Dec 2025
Validated
5 Dec 2025
Target decision
30 Jan 2026
Decided
14 Jan 2026

Estimated project value

£11k–£41k

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.

Floor area gained: 49.2

Recently sold nearby

Inside the two years most owners do their major work — kitchens, bathrooms, rewires and lofts.

Homes here go for about £850,000 — the median of the last 8 market sales in N3 3PY, £375,500 to £1,775,000.

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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