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Tenders

CUE & Butterfly House Decarbonisation

Open
Deadline
161 days left
September 03, 2026
Contract Details
Category
Restricted Procedure
Reference
019024-2026
Value
£1,080,000
Location
London, United Kingdom
Published
March 19, 2026
CPV Code
Project Timeline

Tender Published

March 03, 2026

Deadline for Questions

August 27, 2026

Submission Deadline

September 03, 2026

Contract Start Date

September 03, 2026

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Budget
£1,080,000
Duration
19 months
Location
London
Type
Restricted Procedure
75
Quality Score/100
Good

Original Tender Description

The Butterfly House and Centre for Understanding the Environment (CUE) are located within the wider Horniman Gardens site, which is a Grade II listed Park and Garden. The CUE was constructed in 1995 and was originally intended as a temporary structure with an expected lifespan of 20 years. The Butterfly House was constructed in 2016 as glasshouse for tropical plants and butterflies. The Horniman wish to engage a Main Contractor who will manage and deliver the implementation of the decarbonisation of the above buildings in the listed setting. The works will be let on the basis of traditional JCT contract intermediate form without quantities, but with some contractor design elements. As part of the Horniman's Climate and Ecology Manifesto we have made a commitment to become Greenhouse Gas Neutral by 2040. The key objective of this project is to move us towards this goal by doing the following: • Butterfly House: Replacing the gas cabinet air heater with air-to-air Air Source Heat Pumps (ASHPs). • Butterfly House: Thermal performance and air tightness improvement by replacing existing glass and acrylic with triple layer polycarbonate cladding to existing steel structure with new aluminum glazing bars, window and vents. • Butterfly House: Thermal performance and carbon reduction by installation of new trench heating with new Air Handling Unit and visitor path surface or as an alternative an fan-coil system • CUE: Replacing the gas boiler in the Centre for Understanding the Environment (CUE) building with air-to-water Air Source Heat Pumps. • CUE: Improve the thermal performance and air tightness improvement by draught proofing and thermal bridge mitigation including floor, wall and roof new thermal insulation. • CUE: Install Mechanical Ventilation Heat Recovery (MVHR) • Upgrading the electrical cables inside both the Butterfly House and CUE building.

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Requirements & Qualifications

19 requirements across 5 categories

Submission (3)
Mandatory (1)
Compliance (2)
Technical (12)
Financial (1)
SUBMISSION REQUIREMENTS3
--The works will be let on the basis of traditional JCT contract intermediate form without quantities, but with some contractor design elements.
--The duration of the project is 19 months.
--Deadline for submission: 2026-09-04T00:00:00+01:00.
MANDATORY EXCLUSION GROUNDS1
--No specific mandatory exclusion grounds are detailed in the provided text.
ELIGIBILITY REQUIREMENTS2
--Must be a Main Contractor.
--Must be capable of managing and delivering the implementation of decarbonisation works.
TECHNICAL CAPABILITY REQUIREMENTS12
--Experience in managing and delivering decarbonisation projects.
--Experience with works on Grade II listed Park and Garden settings.
--Experience with JCT contract intermediate form without quantities.
FINANCIAL REQUIREMENTS1
--The total value of the tender is 1080000 EUR.

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Documents

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75
Good

Tender Quality Score

This tender for decarbonisation works at the Horniman Museum is generally well-structured, with clear technical requirements and a disclosed estimated value. However, it lacks explicit evaluation criteria and details on the submission process, impacting its overall practicality and legal compliance.

Score Breakdown

Legal Compliance75/100

The tender includes a clear CPV code and a specified procedure. Deadlines are provided, though the submission deadline might be considered tight given the project's scope and the need for contractor design elements. The absence of explicit evaluation criteria is a notable omission. No disputes are reported.

Missing evaluation criteria
Clarity80/100

The description of the works is detailed and specific, outlining the required technical interventions for both the Butterfly House and CUE buildings. The requirements for contractor design elements are also mentioned, providing a good understanding of the project's scope.

Completeness70/100

Most basic information is present, including the estimated value, contract duration, and start date. However, the tender documents themselves are not accessible or summarized, which is a significant gap. The lack of explicit evaluation criteria also affects completeness.

No document content available
Fairness85/100

The tender discloses the estimated value and outlines objective technical requirements. The procedure is competitive. The requirements for experience with Grade II listed settings are specific but contextually appropriate for the project location. No obvious tailoring to specific companies is apparent.

Practicality65/100

The tender specifies a contract duration and start date. However, it lacks information regarding e-submission, which is a common and expected feature in modern procurement. The absence of financing information is also a drawback.

No e-submission specified
Missing financing information
Data Consistency90/100

Key fields such as title, reference, organization, estimated value, and deadlines are populated. The dates provided are logical, and there are no reported suspensions or disputes. The contract start date coinciding with the submission deadline is unusual but not necessarily inconsistent if interpreted as the earliest possible start.

Sustainability50/100

While the project's objective is decarbonisation, aligning with sustainability goals, the tender does not explicitly mention green procurement criteria, social aspects, innovation, or EU funding. This limits its score in this category.

Not explicitly green procurement
No social criteria mentioned

Strengths

Clear and detailed technical requirements
Disclosed estimated value and contract duration
Specific CPV code provided
Competitive flexible procedure indicated

Concerns

Missing evaluation criteria
No document content available for review
Lack of e-submission details
Potential for a tight submission deadline

Recommendations

1. Provide clear evaluation criteria for bidders.
2. Make tender documents fully accessible with summaries or content.
3. Clarify the e-submission process and platform.

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