Official UK procurement notice
Barbican Renewal Programme - Glass Systems and Envelope
Authority: The Mayor and Commonalty and Citizens of the City of London (Local council)
Glass Systems and Envelope — Barbican Renewal Programme. This is a bespoke glazed envelope design-and-build package, not new-build construction, on a part Grade II listed and Heritage sensitive building – The Barbican Arts Centre.
What is being bought
Published requirement descriptionGlass Systems and Envelope — Barbican Renewal Programme.
This is a bespoke glazed envelope design-and-build package, not new-build construction, on a part Grade II listed and Heritage sensitive building – The Barbican Arts Centre. The works comprise new glazed envelope and façade systems to the Conservatory and Stair 8, following directly behind the demolition (by others), which removes the existing glazing first. The package includes primary steel structure to the Conservatory and Terrace, and the façade access/maintenance walkway and associated gutters and louvres. The scope of works includes:
- Conservatory roof and vertical glazing: louvres, vents, perimeter benches, insulation, aluminum paneling, doors and associated gutters, including the Arid House.
- Steel structure relating to Conservatory glazing: primary steel structure supporting the Conservatory roof and vertical glazing systems, carried within this package's own Contractor Design Portion.
- Conservatory Lantern: re-glazed roof lantern.
- Conservatory Roof lights: Level 02 office roof lights and associated overhead glazing.
- Garden Room glazing, doors and associated gutters: refurbished steel framing to Lakeside Terrace with new acoustic double glazing/doorsets, overhead and Conservatory-facing glazing, and plant-room gutter louvre/infill system.
- Conservatory Terrace Glazing and Steel: new Level 04 enclosure — bespoke steel T-profile vertical glazing, matching overhead glazing, and the Terrace's primary steel structure and roof steelwork.
- Sculpture Court Roof lights: new roof lights, scope to be developed with the Architect and Façade Engineer.
- Stair 8 glazing and associated structure, louvres and gutters: crown/roof glazing on new external primary steel RHS mullions, planters glazing renewal, automated opening windows, exoskeleton mullion replacement (this package's own CDP), and crown mechanical louvres.
- Visual and performance mock-ups: façade and propagation bench, Conservatory Terrace and Fly tower infill glazing visual mock-ups, plus off-site performance mock-ups covering roof and façade weather-resistance to CWCT Sequence A methodology.
- Facade access and associated maintenance walkway: including the Conservatory Terrace mesh walkway and fascia panel.
- How the procedure runs: Stage 1. Invitation to Participate (ITP) Stage 2 Invitation to tender ITT) Comprising of: - Structured workshops and site visits with shortlisted candidates. To communicate effectively the existing conditions, complex interfaces, Installation sequencing and methodology to ensure compliant pricing and invite innovate alternatives. - Technical submission - Commercial submission - Interview
CPV: Building installation work · Glasshouses · Structural steelworks
The lotProcurement structure
single lot · value publishedLot #1RenewalPublished value£10,600,000
- Economic & financial standing
As specified in the tender documents
- Technical & professional ability
Suppliers will be required to meet the conditions of participation set out in the tender documents. These include minimum requirements for financial capacity, insurance, modern slavery and data protection. In addition, suppliers will be required to respond to scored questions regarding experience. The highest scoring bidders who meet the conditions of participation will be invited to participate in the next tender stage in accordance with the methodology set out in the tender documents.
- Condition of participationshortlisting
The ITP will set out the information which bidders are required to provide to the City to enable it to draw up a list of up to a maximum of 4 pre-qualified applicants who will be able to proceed to the next stage of the procurement. In the event that a bidder or multiple bidders achieve the same moderated score as the 4th placed bidder, those bidders will also be invited to proceed to the next stage of the procurement.
What it takes to wini
How this buyer will score bids.
The evaluation criteria and weights exactly as published on the notice, grouped by family (price, quality, social value and so on).
Evaluation split and conditions of participation as published; the tender pack may add morei
How this buyer will score bids.
The evaluation criteria and weights exactly as published on the notice, grouped by family (price, quality, social value and so on).
Published sub-criteria (3)
- Technical: 45%
- Responsible procurement: 15%
- Commercial: 40%
Published award criteria (3)
- Commercial: Suppliers’ commercial responses will evaluated against total contract cost. The commercial evaluation methodology is set out in the tender documents.
- Technical: Suppliers will be required to submit responses to a number of sub-weighted questions relating to organisation, H&S, Risk Management, Programme / method statement, Quality and delivery, BSA/HRA, Supply chain, Trade contactors design. In addition, all shortlisted suppliers will be required to attend a scored interview.
- Responsible procurement: Suppliers will be required to submit responses to set out how they will deliver against climate action initiatives and social value.
- Economic & financial standing
As specified in the tender documents
- Technical & professional ability
Suppliers will be required to meet the conditions of participation set out in the tender documents. These include minimum requirements for financial capacity, insurance, modern slavery and data protection. In addition, suppliers will be required to respond to scored questions regarding experience. The highest scoring bidders who meet the conditions of participation will be invited to participate in the next tender stage in accordance with the methodology set out in the tender documents.
- Condition of participationshortlisting
The ITP will set out the information which bidders are required to provide to the City to enable it to draw up a list of up to a maximum of 4 pre-qualified applicants who will be able to proceed to the next stage of the procurement. In the event that a bidder or multiple bidders achieve the same moderated score as the 4th placed bidder, those bidders will also be invited to proceed to the next stage of the procurement.
- Price carries 40 of 100 points: a 10% discount moves about 4 points. The method statement decides this lot, not the discount.
Price arithmetic assumes straight proportional scoring; the tender pack may use another formula.
Procedure terms & legal framework
From the official record- Procedure method
- Competitive flexible procedure
- Legal basis
- UKPGA · 2023/54 Procurement Act 2023
- Procurement category
- Works
- Notice status
- Closed
- Procurement threshold
- Above threshold (FTS publication)
- Regulatory regime
- Standard
- Commercial structure
- Stand-alone contract (no framework)
- Competition type
- Competitive procedure
- GPA / WTO covered
- Unspecified in notice
- Recurring procurement
- Unspecified in notice
- First published
- 15 Sept 2026, 16:03 BST
- Last source update
- 2 Oct 2026, 11:10 BST
- Award evaluation window
- Submission end – 12 Feb 2027
- Authority reference
26/176/PS- FTS notice number
2026/S 000-093212- Latest notice
- Tender notice (UK4)
- Classification (CPV)
- Delivery area
- Official registry OCID
ocds-h6vhtk-06fa74Find a Tender
- How it runs
Stage 1. Invitation to Participate (ITP)
Stage 2 Invitation to tender ITT)
Comprising of:
- Structured workshops and site visits with shortlisted candidates. To communicate effectively the existing conditions, complex interfaces, Installation sequencing and methodology to ensure compliant pricing and invite innovate alternatives.
- Technical submission
- Commercial submission
- Interview
- Risks
The contract may require modification in the event of project overrun to ensure continuation of service and technical expertise is retained from the service provider (for example to provide additional works)
How it was run
Official notice- Requests to participate (first stage)
- 28 Oct 2026, 12:00 GMT
- Submission deadline
- 28 Oct 2026, 12:00 GMT
- Clarification deadline
- 16 Oct 2026, 12:00 BST
- Submission channel
- Official e-sourcing portal
- Electronic submission
- Allowed
- Accepted languages
- en
This tendering exercise is being undertaken using the electronic tendering system ‘City of London Corporation Sourcing & Contracts Portal’ (cityoflondon.ukp.app.jaggaer.com ↗). Suppliers will need to register an interest on the system in order to participate and registration is free.
Timeline
15 Sept 2026 → 1 Mar 2027 · 7 dates- Planning notice published51 days ago15 Sept 2026, 16:03 BST
- Tender notice published35 days ago2 Oct 2026, 11:10 BST
- Next notice expected34 days ago2 Oct 2026, 23:59 BST
- Clarification questions by20 days ago16 Oct 2026, 12:00 BST
- Submission deadline8 days ago28 Oct 2026, 12:00 GMT
- Today6 Nov 2026
- Award decision expected byin 98 days12 Feb 2027, 23:59 GMT
- Contract startsin 114 days1 Mar 2027
Notice history
3 events · 2 releases on Find a Tender · since 15 Sept 2026- Planned procurement notice published15 Sept 2026, 16:03 BSTUK3
- Tender notice published2 Oct 2026, 11:10 BSTUK4
- Status changed to active2 Oct 2026, 11:10 BST
Contracting authority & participating public bodies
Official documents & specifications (2)
Official links; attachments are not copiedNotices published for this procedure
- Tender notice Tender notice on Find a Tender
- Planned procurement notice Planned procurement notice on Find a Tender