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Permitted25/3678/192Submitted over a year agoRear extension

25 Gresham Avenue London Borough of Barnet N20 0XJ

Single storey rear extension with 3no. rooflights. Conversion of the garage into habitable room including insertion of window to replace garage door

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Progress

Submitted
8 Sept 2025
— completed
Validated
8 Sept 2025
— completed
Consultation
— completed
Target date
3 Nov 2025
— completed
Decided
10 Sept 2025
— completed

Application details

Reference
25/3678/192
Local authority
Barnet
Postcode
N20 0XJ
Ward
FB22
Application type
All Other
Property type
House

Key dates

Submitted
8 Sept 2025
Validated
8 Sept 2025
Target decision
3 Nov 2025
Decided
10 Sept 2025

Estimated project value

£47k–£78k

Based on the 19.1m² 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: 19.1 · 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 £737,500 — the median of the last 6 market sales in N20 0XJ, £610,000 to £1,135,000.

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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