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PROCUREMENT OPPORTUNITY

Barbican Renewal Programme - Glass Systems and Envelope

The Mayor and Commonalty and Citizens of the City of London · Tender notice on Find a Tender

Tender information last checkedLast checked 2 Oct 2026, 12:16.

Opportunity overview

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.

Classification

  • CPV44211500 — Glasshouses
  • CPV45223210 — Structural steelworks
  • CPV45300000 — Building installation work

Lots

  • Lot 1£10.6m

Documents and notices

Published notice details

Additional information from the published procurement release. Fields appear only when supplied by the source; check the original notice and tender documents before acting.

Scope, procedure and submissions

Id
26/176/PS
Status
active
Procurement Method
selective
Procurement Method Details
Competitive flexible procedure
Main Procurement Category
works
Above Threshold
Yes
How to submit
This tendering exercise is being undertaken using the electronic tendering system ‘City of London Corporation Sourcing & Contracts Portal’ (https://cityoflondon.ukp.app.jaggaer.com/). Suppliers will need to register an interest on the system in order to participate and registration is free.
Expression Of Interest Deadline
28 Oct 2026, 12:00
Published 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)

Legal basis

Id
2023/54
Scheme
UKPGA

Procedure

Features
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

Submission terms

Electronic Submission Policy
allowed

Languages

en

Enquiry period

Ends
16 Oct 2026, 12:00

Expected award period

Ends
12 Feb 2027, 23:59

Lots and requirements

Entry 1
Id
1
Status
active
Has Renewal
Yes
Has Options
Yes

Value

Including VAT
12,720,000
Amount
10,600,000
Currency
GBP

Award criteria

Criteria

Criterion 1
Type
cost
Name
Commercial
Description
Suppliers’ commercial responses will evaluated against total contract cost. The commercial evaluation methodology is set out in the tender documents.

Numbers

Entry 1
Number
40
Weight
percentageExact
Criterion 2
Type
quality
Name
Technical
Description
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.

Numbers

Entry 1
Number
45
Weight
percentageExact
Criterion 3
Type
quality
Name
Responsible procurement
Description
Suppliers will be required to submit responses to set out how they will deliver against climate action initiatives and social value.

Numbers

Entry 1
Number
15
Weight
percentageExact

Second Stage

Minimum Candidates
4
Maximum Candidates
4

Selection criteria

Criteria

Criterion 1
Type
economic
Description
As specified in the tender documents
Criterion 2
Type
technical
Description
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.
Criterion 3
Description
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.
For Reduction
Yes

Suitability

Sme
Yes

Contract period

Starts
1 Mar 2027, 00:00
Ends
27 Mar 2029, 23:59
Max Extent Date
27 Aug 2029, 23:59

Renewal

Description
Extensions may be used if there is programme overrun due to unforeseen events, such as discoveries.

Options

Description
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)

Items and delivery

Item 1
Id
1
Related Lot
1

Additional Classifications

Entry 1
Scheme
CPV
Id
45300000
Description
Building installation work
Entry 2
Scheme
CPV
Id
45223210
Description
Structural steelworks
Entry 3
Scheme
CPV
Id
44211500
Description
Glasshouses

Delivery locations

Entry 1
Region
UKI
Country
GB
Country Name
United Kingdom

Published documents

Entry 1
Id
conflictOfInterest
Document Type
conflictOfInterest
Description
Not published
Entry 2
Id
093212-2026
Document Type
tenderNotice
Notice Type
UK4
Description
Tender notice on Find a Tender
Published
2 Oct 2026, 11:10
Format
text/html

Buyer, suppliers and contacts

Organisation 1
Name
The Mayor and Commonalty and Citizens of the City of London
Id
GB-PPON-PYQD-1693-MYXR

Identifier

Scheme
GB-PPON
Id
PYQD-1693-MYXR

Address

Street Address
PO Box 270
Locality
City of London
Postal Code
EC2P 2EJ
Country
GB
Country Name
United Kingdom
Region
UKI43

Contact

Telephone
020 7606 3030

Roles

buyer

Details

Classifications

Entry 1
Scheme
UK_CA_TYPE
Id
publicAuthoritySubCentralGovernment
Description
Public authority - sub-central government

Recorded locations

  • Buyer location · City of London · UKI43 · EC2P 2EJ · United Kingdom
  • Delivery location · UKI · United Kingdom

Notice and amendment history

2 published notice versions reviewed by ProcuraAxis.

2 VERSIONS
  1. 087444-2026Planned procurement notice on Find a Tender ·
  2. 093212-2026Tender notice on Find a Tender ·