Construction Contract Leads
London
Category Works
Type Tender
No. of Lots 1
Status Active
Published 2nd Nov 2026
| Reference | ocds-h6vhtk-0795cc |
| Common Procurement Vocabulary | Building construction work |
| Procurement Method | Competitive flexible procedure |
| Value | £20,000,000 |
London
Category Works
Type Tender
No. of Lots 1
Status Active
Published 2nd Nov 2026
| Reference | ocds-h6vhtk-0795cc |
| Common Procurement Vocabulary | Building construction work |
| Procurement Method | Competitive flexible procedure |
| Value | £20,000,000 |
Scope
Reference
RBGKEW1594
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
Total value (estimated)
- £20,000,000 excluding VAT
- £24,000,000 including VAT
Above the relevant threshold
Contract dates (estimated)
- 10 August 2027 to 5 December 2029
- 2 years, 3 months, 27 days
Main procurement category
Works
CPV classifications
- 45210000 - Building construction work
Contract locations
- UKI75 - Hounslow and Richmond upon Thames
Participation
Particular suitability
Small and medium-sized enterprises (SME)
Submission
Enquiry deadline
9 December 2026, 11:59pm
Submission type
Requests to participate
Deadline for requests to participate
9 December 2026, 11:59pm
Submission address and any special instructions
https://www.delta-esourcing.com/suppliers/response-manager
Tenders may be submitted electronically
Yes
Languages that may be used for submission
English
Award decision date (estimated)
10 August 2027
Award criteria
| Name | Description | Type | Weighting |
|---|---|---|---|
| Relevant Project Experience | Quality | Quality | 20% |
| Company Technical Capability | Quality | Quality | 10% |
| Technical Understanding of Historic Structures & Conservation Methodology | Quality | Quality | 10% |
| Supply Chain Capability | Quality | Quality | 10% |
| Quality & Corrosion Protection | Quality | Quality | 10% |
| Principal Contractor Experience | Quality | Quality | 10% |
| CDM & Health & Safety | Quality | Quality | 10% |
| Working in Live Environments | Quality | Quality | 10% |
| Programme & Risk Control | Quality | Quality | 10% |
Other information
Conflicts assessment prepared/revised
Yes
Procedure
Procedure type
Competitive flexible procedure
Competitive flexible procedure description
2 stages
Contracting authority
Royal Botanic Gardens, Kew
- Public Procurement Organisation Number: PGTT-3583-QXLN
Royal Botanic Gardens, Kew, Royal Botanic Gardens, Kew Green
Richmond
TW9 3AQ
United Kingdom
Contact name: Phil lutcher
Telephone: 020 8332 5655
Email: p.lutcher [at] kew.org
Region: UKI75 - Hounslow and Richmond upon Thames
Organisation type: Public authority - sub-central government