Scope
Reference
prj_864
Description
The Conservatory Vision is a major part of the Barbican Renewal project, focused on restoring and transforming the Barbican Conservatory into an accessible, sustainable, and vibrant public space that celebrates its original Brutalist design. Key works include the full replacement of the glazing and installation of a new louvre system for improved climate control, strengthening of structural frames, new staircases and lifts for access to upper balconies, and new waterproofing and floor build-ups. The project will also deliver a reconfigured internal layout with relocated planters, ponds, and walkways; upgraded mechanical, electrical, and horticultural systems; and refurbished event spaces, foyers, and visitor facilities. Improved lighting, accessibility features, and sustainable planting will enhance both public use and private event potential. By combining sensitive conservation with sustainable design and eco-brutalist landscaping, the revitalised Conservatory will become a welcoming green sanctuary in the heart of the City - honouring its heritage while ensuring its long-term future.
Total value (estimated)
- £40,000,000 excluding VAT
- £48,000,000 including VAT
Above the relevant threshold
Contract dates (estimated)
- 22 January 2027 to 18 April 2029
- Possible extension to 18 April 2030
- 3 years, 2 months, 28 days
Main procurement category
Works
CPV classifications
- 45212000 - Construction work for buildings relating to leisure, sports, culture, lodging and restaurants
- 45212300 - Construction work for art and cultural buildings
Contract locations
- UK - United Kingdom
Engagement
Engagement deadline
5 December 2025
Engagement process description
The City seeks input from the contractor market to understand what might be the most attractive way of packaging and scoping a future procurement opportunity to deliver the project outcomes.
This Pre-Market Engagement (PME) exercise will provide an opportunity for the City to obtain insight into how contractors might approach the delivery of the project. It also gives a useful early insight into the likely level of interest in a proposed project from the market.
Interested organisations will be asked to complete and return a brief questionnaire. To access the PME questionnaire and supporting documentation, please register on the electronic tendering system 'City of London Corporation Sourcing & Contracts Portal' (url:https://cityoflondon.ukp.app.jaggaer.com/esop/ogc-host/public/cityoflondon/web/login.jst?_ncp=1750328586606.1507105-1) and search for 'Barbican Renewal Conservatory'.
Organisations should submit their completed questionnaire in accordance with the instructions set out in the PME documentation, by the return deadline of 12:00pm (noon / midday) on 5th December 2025.
Following receipt and review of questionnaires, the project team may conduct further direct discussions with organisations of interest to further explore the themes set out in the questionnaire.
Participation
Particular suitability
Small and medium-sized enterprises (SME)
Submission
Publication date of tender notice (estimated)
2 February 2026
Contracting authority
The Mayor and Commonalty and Citizens of the City of London
- Public Procurement Organisation Number: PYQD-1693-MYXR
PO Box 270
City of London
EC2P 2EJ
United Kingdom
Contact name: Andrew Stirland
Telephone: 020 7606 3030
Email: andrew.stirland@cityoflondon.gov.uk
Website: https://www.cityoflondon.gov.uk
Region: UKI43 - Haringey and Islington
Organisation type: Public authority - sub-central government