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Permitted25/1842/HSESubmitted over a year agoLoft conversion

11 Gresham Avenue London Borough of Barnet N20 0XJ

Part single, part two storey side and rear extension with 3no. rooflights. Demolition and rebuild of the existing garage. Roof extension involving rear dormer window with juliette balcony and 1no. side and 2no. front facing rooflights. Alterations to rear patio with associated retaining wall and landscaping (Amended Description)

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Progress

Submitted
14 May 2025
— completed
Validated
14 May 2025
— completed
Consultation
— completed
Target date
9 Jul 2025
— completed
Decided
14 Jul 2025
— completed

Application details

Reference
25/1842/HSE
Local authority
Barnet
Postcode
N20 0XJ
Ward
FB22
Application type
Householder
Property type
House

Key dates

Submitted
14 May 2025
Validated
14 May 2025
Target decision
9 Jul 2025
Decided
14 Jul 2025

Estimated project value

£41k–£85k

Based on the 25.0m² of floor area stated in the application, at inner London rates (2026). Source: Checkatrade 2026, loft conversion £1,200-£2,500/m².

Floor area gained: 25 · 2 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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