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TenderCloses in 26 days

Palm House Conservation Package

Royal Botanic Gardens, Kew · published 2 Nov 2026

Deadline
9 Dec 2026, 23:59 · questions by 9 Dec 2026, 23:59
Estimated value
£20,000,000 excluding VAT where stated
Procedure
Competitive flexible procedure · above threshold
Contract dates
10 Aug 2027 to 5 Dec 2029
Where
London
Categories (CPV)
  • 45210000 Building construction work
Small businesses
The buyer marks this as suitable for SMEs.
Award criteria
  • Company Technical Capability (quality)10%
  • Relevant Project Experience (quality)20%
  • Technical Understanding of Historic Structures & Conservation Methodology (quality)10%
  • Supply Chain Capability (quality)10%
  • Quality & Corrosion Protection (quality)10%
  • Principal Contractor Experience (quality)10%
  • CDM & Health & Safety (quality)10%
  • Working in Live Environments (quality)10%
  • Programme & Risk Control (quality)10%

Description

Appointment of a Principal Contractor to deliver conservation, refurbishment, and accessibility works to the Grade I listed Palm House within the UNESCO World Heritage Site at Kew.

• Scope of Works: Conservation and refurbishment of the historic Palm House structure and associated elements, including glazing replacement, wrought/cast ironwork conservation, historic ventilation system overhaul, stonework/dado repairs, rainwater goods restoration, accessibility enhancements, internal alterations, M&E works, and related enabling works.

• Operating Environment: Delivered within a live operational environment of international heritage significance, requiring meticulous coordination with site visitors, staff, living collections, and ongoing garden operations and maintenance.

• Package Boundaries: Excludes separate decarbonisation and landscaping packages, which will be procured under separate standalone contracts. For more information about this opportunity, please visit the eSourcing portal at: https://www.delta-esourcing.com/tenders/UK-UK-Richmond:-Building-construction-work./D47WHXCKR6 To respond to this opportunity, please click here: https://www.delta-esourcing.com/respond/D47WHXCKR6

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