Hounslow
Conservation and decarbonisation of the Palm House and Waterlily House to include: � Demolition of Boiler House 13 and its replacement with a new enclosure. � Fabric conservation and upgrades to include glass replacement, repair and repainting of iron structures, reintroduction and repair of openable vents, conservation and restoration of ground level fabric (including stone, paving and grilles), and removal of the access gantry and ladder system in the Palm House. � Decarbonisation works to include installation of water source heat pumps in the Palm House basement and associated infrastructure, installation of new pipework and replacement of existing pipework, installation of new radiators in the Palm House, installation of new building management systems. � Improved access to include alterations to the ground floor layout of the Palm House and the creation of a series of interpretive and sensory installations, the installation of a ground level platform lift leading to the Palm House basement, and upgrades to entrance doors to include the removal of lobbies. � Irrigation improvements including refurbishment of rainwater harvesting tanks and the introduction of automated irrigation systems. � Other associated works and general cleaning of the glasshouses
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Progress
Application details
- Reference
- C/2025/2377
- Local authority
- Hounslow
- Ward
- Richmond upon Thames (adjacent Borough)
- Application type
- All Other
- Property type
- House
Key dates
- Submitted
- 1 Aug 2025
- Validated
- 1 Aug 2025
- Comments close
- 1 Aug 2025
- Target decision
- 22 Aug 2025
- Decided
- 4 Aug 2025
Estimated project value
£100k–£250k
Typical UK cost for this job type, at UK average rates (2026). Estimated from the proposal description — planning applications do not state build cost. Source: trade estimate.
Planning constraints
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Designations from planning.data.gov.uk, Open Government Licence v3.0. Indicative only — not a formal local authority search.
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