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PermittedP/2018/4870Submitted 7 years agoLoft conversion

318 Hanworth Road Hounslow TW3 3SH

Certificate of Lawfulness for erection of a rear roof extension with front roof windows to the house.

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Map of the site

Progress

Submitted
20 Dec 2018
— completed
Validated
20 Dec 2018
— completed
Consultation
—
— completed
Target date
14 Feb 2019
— completed
Decided
10 May 2019
— completed

Application details

Reference
P/2018/4870
Local authority
Hounslow
Postcode
TW3 3SH
Ward
Hounslow Heath (Pre May 2022)
Application type
All Other
Property type
House

Key dates

Submitted
20 Dec 2018
Validated
20 Dec 2018
Target decision
14 Feb 2019
Decided
10 May 2019

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.

Homes here go for about £352,500 — the median of the last 6 market sales in TW3 3SH, £240,000 to £547,500.

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.

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