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RefusedP/2009/1865Submitted 17 years agoLoft conversion

25 Cassiobury Avenue Hounslow TW14 9JE

Certificate of Lawfulness for the proposed rear roof extension incorporating hip to a gable conversion, ground floor rear extension and first floor rear extension.

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Progress

Submitted
10 Aug 2009
— completed
Validated
10 Aug 2009
— completed
Consultation
—
— completed
Target date
5 Oct 2009
— completed
Decided
17 Sept 2009
— completed

Application details

Reference
P/2009/1865
Local authority
Hounslow
Postcode
TW14 9JE
Ward
Feltham North (Pre May 2022)
Application type
All Other
Property type
House

Key dates

Submitted
10 Aug 2009
Validated
10 Aug 2009
Target decision
5 Oct 2009
Decided
17 Sept 2009

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

New owners, recently moved in. First work on a house usually follows within months of completing. 5 recent sales are listed below.

Homes here go for about £437,750 — the median of the last 8 market sales in TW14 9JE, £410,500 to £567,500.

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.

Nearby applications