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Tenders

CUE & Butterfly House Decarbonisation

Open
Deadline
160 days left
September 03, 2026
Contract Details
Category
Restricted Procedure
Reference
025347-2026
Value
£1,080,000
Location
London, United Kingdom
Published
March 19, 2026
CPV Code
Project Timeline

Tender Published

March 19, 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

17 requirements across 5 categories

Submission (3)
Mandatory (1)
Compliance (2)
Technical (10)
Financial (1)
SUBMISSION REQUIREMENTS3
--The works will be let on the basis of a traditional JCT contract intermediate form without quantities.
--The contract will include some contractor design elements.
--Bids must be provided in English, Estonian, Latvian, Polish, and Lithuanian.
MANDATORY EXCLUSION GROUNDS1
--No specific mandatory exclusion grounds are detailed in the provided text.
ELIGIBILITY REQUIREMENTS2
--Must be a Main Contractor.
--Must manage and deliver the implementation of decarbonisation works.
TECHNICAL CAPABILITY REQUIREMENTS10
--Experience in decarbonisation projects within listed settings is implied.
--Experience with projects involving the installation of Air Source Heat Pumps (ASHPs).
--Experience with thermal performance and air tightness improvements in buildings.
FINANCIAL REQUIREMENTS1
--No specific financial requirements are detailed in the provided text.

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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 reasonable estimated value. However, it lacks explicit evaluation criteria and details on financing, impacting overall completeness and practicality.

Score Breakdown

Legal Compliance75/100

The tender adheres to general legal compliance by providing a reference number, organization details, CPV code, and a clear procedure type. The estimated value is disclosed, and there are no reported disputes. The deadline, while potentially short for the scope, is clearly stated. The absence of explicit mandatory exclusion grounds is noted.

Clarity80/100

The description of the project scope, including specific decarbonisation measures for both buildings, is detailed and understandable. Technical requirements are well-defined, and the contract type (JCT intermediate form with contractor design elements) is specified. The main clarity issue is the lack of specified evaluation criteria.

Missing evaluation criteria
Completeness70/100

Most basic information is present, including title, reference, organization, estimated value, contract duration, and start date. However, crucial details such as the content of the tender documents (all are listed as having no content/summaries) and specific financial requirements are missing. The lack of explicit mandatory exclusion grounds also affects completeness.

No document content available
No specific financial requirements detailed
Fairness85/100

The tender appears fair, with a disclosed estimated value and objective technical requirements. The procedure is competitive. The main concern is the lack of explicit evaluation criteria, which could lead to perceived subjectivity. The requirement for bids in multiple languages (English, Estonian, Latvian, Polish, and Lithuanian) is unusual and might indicate a broader EU context or a specific outreach strategy, but without further context, it's difficult to assess its fairness impact beyond potential administrative burden.

Bids must be provided in English, Estonian, Latvian, Polish, and Lithuanian (potential administrative burden/fairness concern without clear justification)
Practicality65/100

The tender specifies a contract start date and duration. However, the lack of e-submission details and the absence of financing information reduce practicality. The requirement for bids in multiple languages also adds an administrative burden.

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

Key fields such as title, reference, organization, estimated value, and deadlines are populated. There are no reported disputes or suspensions. The contract start date is the same as the submission deadline, which is logically consistent for a contract commencement. The CPV code is appropriate for the described works.

Sustainability50/100

The project's core objective is decarbonisation, aligning with environmental goals. However, the tender does not explicitly mention green procurement criteria beyond the project's inherent nature, nor does it detail social aspects or innovation focus. It is not explicitly stated as EU funded.

Not explicitly green procurement beyond project scope
No social criteria mentioned

Strengths

Clear and detailed technical requirements
Well-defined project scope and objectives
Disclosed estimated value and contract duration
Appropriate CPV code provided

Concerns

Missing evaluation criteria
No document content available
No e-submission specified
Requirement for bids in multiple languages

Recommendations

1. Specify evaluation criteria to enhance transparency and fairness.
2. Provide access to the full content of tender documents.
3. Clarify the e-submission process and platform.

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