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Published 15 Sept 2026, 16:03 BST

Official UK procurement notice

Barbican Renewal Programme - Glass Systems and Envelope

Official notice

Authority: The Mayor and Commonalty and Citizens of the City of London (Local council)

WorksCompetitive flexible procedureAbove thresholdSME suitable
Published estimate£10,600,000≈ £5.1m / year · £12,720,000 inc. VAT
Submissions closed 28 Oct 2026
Next notice expected 2 Oct 2026
Contract term 2 yrs 1 moends 27 Mar 2029 · up to 27 Aug 2029 with extensions · starts 1 Mar 2027
Notice summaryFrom the published notice

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 description

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. 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 published
Lot #1Renewal 2 yrs 1 moSMEPublished value£10,600,000
Contract period: 1 Mar 2027 – 27 Mar 2029 (2 yrs 1 mo) · up to 27 Aug 2029 with extensionsValue: £10,600,000 exc. VAT · £12,720,000 inc. VAT
Delivery: LondonEligibility: SME eligible
Extensions: The Contracting Authority is seeking separately identified pricing for two elements where the final package allocation is yet to be determined. These are: Frobisher Crescent Fire-Rated Glazing (Conservatory). Scope: Frobisher Crescent fire-resisting stick curtain walling with feature fins, replacing the existing glazing on a like-for-like sightline basis, per the External Envelope Systems specification. Art Gallery Roof Lights (Art Gallery Foyers -Level 4) Scope: New Class 2 rooflights, forming part of the broader Art Gallery Foyers glazing replacement (steel-framed glazing to Level 4, automated sliding doorset to Sculpture Court, AOV smoke vents, automatic opening skylights to the library clerestory) · Extensions may be used if there is programme overrun due to unforeseen events, such as discoveries.Second stage: up to 4 candidates invited to tender
Pre-qualification & selection criteria (PQQ)3
  • 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 participation

    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.

    shortlisting

What it takes to win
i

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 more
How bids were scored
Quality: 60%Price: 40%
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.
Conditions of participation3
  • 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 participation

    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.

    shortlisting
What this means for your bid
  • 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)
Building installation workGlasshousesStructural steelworks
Delivery area
London (UKI)
Official registry OCID
ocds-h6vhtk-06fa74 Find 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
Review and risk notes
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
Run through: Jaggaer · Who buys & how to bid on JAGGAER
Supplier login requiredElectronic submission allowedLanguage: EN
Access & registration note: Free; latest Chrome/Edge/Firefox only — corporate browsers fail
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
Detailed submission instructions & authority contactsFrom official release

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
  1. Planning notice published51 days ago
    15 Sept 2026, 16:03 BST
  2. Tender notice published35 days ago
    2 Oct 2026, 11:10 BST
  3. Next notice expected34 days ago
    2 Oct 2026, 23:59 BST
  4. Clarification questions by20 days ago
    16 Oct 2026, 12:00 BST
  5. Submission deadline8 days ago
    28 Oct 2026, 12:00 GMT
  6. Today
    6 Nov 2026
  7. Award decision expected byin 98 days
    12 Feb 2027, 23:59 GMT
  8. Contract startsin 114 days
    1 Mar 2027

Notice history

3 events · 2 releases on Find a Tender · since 15 Sept 2026
  1. Planned procurement notice published
    15 Sept 2026, 16:03 BST
    UK3
  2. Tender notice published
    2 Oct 2026, 11:10 BST
    UK4
  3. Status changed to active
    2 Oct 2026, 11:10 BST

Contracting authority & participating public bodies

The Mayor and Commonalty and Citizens of the City of London

Contracting authorityPublic authority - sub-central government GB-PPON: PYQD-1693-MYXR PO Box 270, City of London, London, EC2P 2EJContact email, phone

Official documents & specifications (2)

Official links; attachments are not copied

Notices published for this procedure

  • Tender notice tenderTender noticeUK4Tender notice on Find a Tender
  • Planned procurement notice planningPlanned procurement noticeUK3Planned procurement notice on Find a Tender