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Pending26/3039/HSESubmitted 3 weeks agoLoft conversion

12 Marlborough Avenue London Borough of Barnet HA8 8UH

Part single, part two storey rear extension. First floor side extension. Roof extension involving side and rear wraparound dormer and side gable windows. New front porch with associated steps and railings

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Progress

Submitted
19 Aug 2026
— completed
Validated
19 Aug 2026
— completed
Consultation
—
— not yet reached
Target date
14 Oct 2026 (target)
— not yet reached
Decided
—
— not yet reached

Application details

Reference
26/3039/HSE
Local authority
Barnet
Postcode
HA8 8UH
Ward
EY22
Application type
Householder
Property type
House

Key dates

Submitted
19 Aug 2026
Validated
19 Aug 2026
Target decision
14 Oct 2026

Estimated project value

£98k–£205k

Based on the 65.0m² of floor area stated in the application, at outer London rates (2026). Source: Checkatrade 2026, loft conversion £1,200-£2,500/m².

Floor area gained: 65m² · 2 additional bedrooms

Recently sold nearby

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

Homes here go for about £544,000 — the median of the last 7 market sales in HA8 8UH, £340,750 to £610,000.

Contains HM Land Registry data © Crown copyright and database right 2024. 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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