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Permitted25/1833/HSESubmitted over a year agoLoft conversion

20 Basing Hill London Borough of Barnet NW11 8TH

Roof extension involving raising of the ridge height, side dormer windows and 2no. side, 1no. rear and 1no. front facing rooflight. Single storey side infill extension following demolition of the storage area. New front porch. Erection of a rear outbuilding (Amended Description)

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Progress

Submitted
30 Apr 2025
— completed
Validated
30 Apr 2025
— completed
Consultation
— completed
Target date
25 Jun 2025
— completed
Decided
25 Jun 2025
— completed

Application details

Reference
25/1833/HSE
Local authority
Barnet
Postcode
NW11 8TH
Ward
CH22
Application type
Householder
Property type
House

Key dates

Submitted
30 Apr 2025
Validated
30 Apr 2025
Target decision
25 Jun 2025
Decided
25 Jun 2025

Estimated project value

£140k–£290k

Based on the 85.5m² 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: 85.5 · 1 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 £1,730,000 — the median of the last 8 market sales in NW11 8TH, £770,000 to £2,200,000.

Contains HM Land Registry data © Crown copyright and database right 2026. 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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