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PermittedP/2021/4396Submitted 4 years agoLoft conversion

21 Ash Grove Hounslow TW5 9DU

Certificate of Lawfulnes for the erection of a rear roof extension incorporating a julliette balcony with front roof windows to the house and a single storey outbuilding for use as home gym and store in the rear garden

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Progress

Submitted
4 Nov 2021
— completed
Validated
4 Nov 2021
— completed
Consultation
—
— completed
Target date
30 Dec 2021
— completed
Decided
17 Dec 2021
— completed

Application details

Reference
P/2021/4396
Local authority
Hounslow
Postcode
TW5 9DU
Ward
Heston West (Pre May 2022)
Application type
All Other
Property type
House

Key dates

Submitted
4 Nov 2021
Validated
4 Nov 2021
Target decision
30 Dec 2021
Decided
17 Dec 2021

Estimated project value

£87k–£180k

Based on the 58.1m² 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: 58.12m² · 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 £510,500 — the median of the last 4 market sales in TW5 9DU, £298,000 to £640,000.

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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