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PermittedP/0423/20Submitted 6 years agoLoft conversion

21 GRANT ROAD Harrow HA3 7SB

Certificate of lawful development (proposed): Alterations to roof to form wrap around dormer to side and rear roofslopes; installation of two rooflights in front roofslope

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Map of the site

Progress

Submitted
18 Feb 2020
— completed
Validated
18 Feb 2020
— completed
Consultation
—
— completed
Target date
1 Apr 2020
— completed
Decided
9 Apr 2020
— completed

Application details

Reference
P/0423/20
Local authority
Harrow
Postcode
HA3 7SB
Ward
Marlborough
Application type
All Other
Property type
House

Key dates

Submitted
18 Feb 2020
Validated
18 Feb 2020
Target decision
1 Apr 2020
Decided
9 Apr 2020

Estimated project value

£35k–£94k

Typical UK cost for this job type, at outer London rates (2026). Estimated from the proposal description — planning applications do not state build cost. Source: Checkatrade 2026 loft conversion cost guide.

Recently sold nearby

Inside the two years most owners do their major work — kitchens, bathrooms, rewires and lofts. 3 recent sales are listed below.

Homes here go for about £290,000 — the median of the last 3 market sales in HA3 7SB, £265,000 to £407,500.

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.

Nearby applications