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Permitted23/1485/FULSubmitted 3 years agoChange of use

12, 14 Hill Street Richmond upon Thames TW9 1TN

Change of use from Use Class E (office) to Use Class C3 (residential) to provide 1 x 3 bedroom maisonette and provision of one Air-source heat pump at first-floor level on the rear elevation and replacement windows and rooflight at the rear.

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Progress

Submitted
31 May 2023
— completed
Validated
31 May 2023
— completed
Consultation
30 Jun 2023
— completed
Target date
26 Jul 2023
— completed
Decided
29 May 2024
— completed

Application details

Reference
23/1485/FUL
Local authority
Richmond
Postcode
TW9 1TN
Ward
STR
Application type
All Other
Property type
Flat

Key dates

Submitted
31 May 2023
Validated
31 May 2023
Comments close
30 Jun 2023
Target decision
26 Jul 2023
Decided
29 May 2024

Estimated project value

£19k–£125k

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: trade estimate.

Floor area gained: 162

Recently sold nearby

Inside the two years most owners do their major work — kitchens, bathrooms, rewires and lofts.

Homes here go for about £323,100 — the median of the last 3 market sales in TW9 1TN, £285,000 to £340,000.

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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