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Published 3 Mar 2026, 14:35 GMT

Official UK procurement notice

CUE & Butterfly House Decarbonisation

Official notice

Authority: THE HORNIMAN PUBLIC MUSEUM AND PUBLIC PARK TRUST (Central government)·On behalf of: PRINGLE RICHARDS SHARRATT LIMITED

WorksCompetitive flexible procedureAbove thresholdSME suitableVCSE suitable
Sectors: Electrical machinery, apparatus, equipment and consumables; lighting (31)Construction & Civil Engineering (45)Installation services (except software) (51) Delivery: London (UKI)
Published estimate£900,000≈ £568k / year · £1,080,000 inc. VAT
Submissions closed 10 Apr 2026
Contract term 1 yr 7 moends 31 Mar 2028 · starts 4 Sept 2026

What is being bought

Published requirement 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.
  • Not divided into lots: The project budget is limited, being based on a single decarbonisation grant from the Public Sector Decarbonisation Scheme. As a result, one single structure is preferable from a cost management perspective and to avoid duplication. The other driver is limited organisational project management resource, the Horniman does not have the resourcing to handle the administrative complexity of multiple primary contractors.
  • How the procedure runs: A Selection Questionnaire will be used to down select up to five suppliers for the full tender process. The SQ will be reviewed on the basis of previous relevant experience, team and financial standing. Successful suppliers from the SQ will then be provided with an Invitation to Tender, with tender submissions assessed on a basis of 60% cost and 40% quality.
  • No preliminary market engagement: PME was undertaken by design team to develop design specifications only in particular with specialist greenhouse contractors and Heat Pump suppliers.

CPV: Construction work · Electrical equipment and apparatus · Electricity distribution and control apparatus · Installation services of electrical and mechanical equipment

The lotProcurement structure

single lot · value published
Lot #1 1 yr 7 moSMEVCSEPublished value£900,000
Contract period: 4 Sept 2026 – 31 Mar 2028 (1 yr 7 mo)Value: £900,000 exc. VAT · £1,080,000 inc. VAT
Delivery: LondonEligibility: SME eligibleVCSE eligible
Second stage: 1–5 candidates invited to tender
31200000 Electricity distribution and control apparatus31600000 Electrical equipment and apparatus45000000 Construction work51100000 Installation services of electrical and mechanical equipment
Pre-qualification & selection criteria (PQQ)1
  • Condition of participation

    Responses to the financial checks and relevant experience questions are weighted at 50% each. The five top scoring Selection Questionnaire's will be selected to move onto the main tender process.

    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: 40%Price: 60%
Published award criteria (2)
  • Price: For tender evaluation following initial Selection Questionnaire (SQ).
  • Quality: For tender evaluation following initial Selection Questionnaire (SQ).
Conditions of participation1
  • Condition of participation

    Responses to the financial checks and relevant experience questions are weighted at 50% each. The five top scoring Selection Questionnaire's will be selected to move onto the main tender process.

    shortlisting
What this means for your bid
  • Price carries 60 of 100 points: a 10% discount moves about 6 points. This one is won on the number: sharpen the price before polishing the prose.

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
3 Mar 2026, 14:35 GMT
Last source update
31 Mar 2026, 13:14 BST
Award evaluation window
Submission end – 14 Aug 2026
FTS notice number
2026/S 000-019024
Latest notice
Tender notice (UK4)
Classification (CPV)
Construction workElectrical equipment and apparatusElectricity distribution and control apparatusInstallation services of electrical and mechanical equipment
Delivery area
London (UKI)
Official registry OCID
ocds-h6vhtk-066112 Find a Tender
How it runs

A Selection Questionnaire will be used to down select up to five suppliers for the full tender process. The SQ will be reviewed on the basis of previous relevant experience, team and financial standing.

Successful suppliers from the SQ will then be provided with an Invitation to Tender, with tender submissions assessed on a basis of 60% cost and 40% quality.

How it was run

Official notice
Run through: portal not identified
Electronic submission allowedLanguage: EN
Requests to participate (first stage)
10 Apr 2026, 23:59 BST
Submission deadline
10 Apr 2026, 23:59 BST
Clarification deadline
5 Apr 2026, 23:59 BST
Submission channel
Official e-sourcing portal
Electronic submission
Allowed
Accepted languages
en
Detailed submission instructions & authority contactsFrom official release

Selection Questionnaire submissions should be made to Henry Stenning at [email protected]

and to Simon Hart at [email protected]

www.horniman.ac.uk ↗

Timeline

3 Mar 2026 → 4 Sept 2026 · 6 dates
  1. Tender notice published237 days ago
    3 Mar 2026, 14:35 GMT
  2. Latest notice published209 days ago
    31 Mar 2026, 13:14 BST
  3. Clarification questions by204 days ago
    5 Apr 2026, 23:59 BST
  4. Submission deadline199 days ago
    10 Apr 2026, 23:59 BST
  5. Award decision expected by73 days ago
    14 Aug 2026, 23:59 BST
  6. Contract starts53 days ago
    4 Sept 2026, 00:00 BST

Notice history

5 events · 5 releases on Find a Tender · since 3 Mar 2026
  1. Tender notice published
    3 Mar 2026, 14:35 GMT
    UK4
  2. Tender notice published
    18 Mar 2026, 13:31 GMT
    UK4
  3. Tender notice published
    18 Mar 2026, 15:38 GMT
    UK4
  4. Tender notice published
    19 Mar 2026, 15:30 GMT
    UK4
  5. Tender notice published
    31 Mar 2026, 13:14 BST
    UK4
Published amendments (4)

Replaced the previous incorrect quality questions document with an updated correct version.

Updates to the selection questionnaire, quality questions, and introduction documents.

Updated quality question document.

Update to SQ Quality Questions document. Addition of Decarbonisation Strategy documents. Change in SQ submission deadline to 17th April.

Routine re-releases (5)
  • 2026-03: 2 releases · 3 Mar 2026, 18 Mar 2026

Contracting authority & participating public bodies

2 public bodies on the notice

THE HORNIMAN PUBLIC MUSEUM AND PUBLIC PARK TRUST

Contracting authorityPublic authority - central government GB-COH: 02456393 · GB-PPON: PZRB-3443-MXPW 100 London Road, London, London, SE23 3PQContact name, email

Other public bodies

  • PRINGLE RICHARDS SHARRATT LIMITEDProcuring entityProject architects and M&E designersGB-COH: 03189549GB-PPON: PWPX-3454-BWGW London, LondonContact name, email

Official documents & specifications (22)

Official links; attachments are not copied

Tender pack and attachments

Show 9 more documents

Notices published for this procedure

  • Tender notice tenderTender noticeUK4Tender notice on Find a Tender
  • Tender notice tenderTender noticeUK4Tender notice on Find a Tender
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