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RefusedPL/0435/26Submitted 6 months agoLoft conversion

1 1-8 CASTLE MEWS Harrow HA1 1HP

Two storey rear extension to units 6-8; First floor roof extension to units 1-8; External Alterations (subdivision of land for rear gardens for Units 6-8) (part retrospective)

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Map of the site

Progress

Submitted
24 Feb 2026
— completed
Validated
24 Feb 2026
— completed
Consultation
19 Mar 2026
— completed
Target date
21 Apr 2026
— completed
Decided
21 Apr 2026
— completed

Application details

Reference
PL/0435/26
Local authority
Harrow
Postcode
HA1 1HP
Ward
Marlborough
Application type
All Other
Property type
House

Key dates

Submitted
24 Feb 2026
Validated
24 Feb 2026
Comments close
19 Mar 2026
Target decision
21 Apr 2026
Decided
21 Apr 2026

Estimated project value

£745k–£1545k

Based on the 495m² 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: 495m²

Recently sold nearby

New owners, recently moved in. First work on a house usually follows within months of completing. 8 recent sales are listed below.

Homes here go for about £385,000 — the median of the last 7 market sales in HA1 (the wider postcode district), £120,000 to £900,000.

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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