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Procurement of the Development Agreement Related to a Low Carbon Heat Network in the Square Mile

The Mayor and Commonalty and Citizens of the City of London

This public procurement record has 6 releases in its history.

Tender

16 Dec 2025 at 12:53

UK4 - Tender Notice
PlanningUpdate

17 Oct 2025 at 12:02

UK1 - Pipeline Notice
PlanningUpdate

09 Sep 2025 at 09:52

UK1 - Pipeline Notice
PlanningUpdate

01 Sep 2025 at 09:12

UK1 - Pipeline Notice
PlanningUpdate

28 Aug 2025 at 10:07

UK1 - Pipeline Notice
Planning

09 Jun 2025 at 13:13

UK1 - Pipeline Notice
Summary of the contracting process

The City of London Corporation has announced an active procurement opportunity for the development of a low carbon heat network in the Square Mile area, focusing on urban development and energy-related services. The procurement process is overseen by The Mayor and Commonalty and Citizens of the City of London, with OVE ARUP & PARTNERS LIMITED, SHARPE PRITCHARD LLP, and LOCAL PARTNERSHIPS LLP providing procurement, legal, and commercial support respectively. The tender is in the "tender" stage, with deadlines for various submissions ranging from 12 January 2026 to 22 June 2026, and the contract is set to be signed by 26 November 2026. This project is poised to impact areas around the City of London, including borders with Westminster, Camden, and Islington, with a total estimated gross value for the deal of £5,210,400,000 GBP under a competitive flexible procedure.

This tender presents substantial opportunities for business growth within the urban development and renewable energy industries, particularly for companies with expertise in district heating and energy services infrastructure. Businesses specialising in construction and heating works are well-suited to compete, thanks to the CPV classification of the procurement items, which include urban development construction and heating works. The robust structure of the tender with its multi-stage competitive procedure allows companies to highlight their technical ability alongside commercial viability and social value contributions. With no capital investment required from the City of London itself, businesses have the opportunity to become instrumental partners in a high-value project with substantial longevity, as the contract period extends to 2068.

How relevant is this notice?

Notice Information

Notice Title

Procurement of the Development Agreement Related to a Low Carbon Heat Network in the Square Mile

Notice Description

City of London Corporation ("CoLC") is seeking via this Procurement to select a Heat Network Development Partner to develop the Network and, subject to receipt of the necessary approvals, deliver the Network. It is intended that, as a result of this Procurement, CoLC will enter into a development agreement under which the Heat Network Development Partner (via the special purpose vehicle (the "SPV") established for development and delivery of the Network) is required to design and develop the Network up until the point at which it is ready to be built, at which point, it will present the project for approval by CoLC. Provided that the project passes this "Approvals Gateway", CoLC and the Heat Network Development Partner will be required to enter into the Shareholders' Agreement which will govern the management of the SPV and impose obligations on delivery and operation of the Network. CoLC invests no capital in the SPV and derives no economic benefit as a Shareholder but, holds a "special" or "golden" share in the SPV which allows it certain rights as set out in more detail in the Contractual Documentation. The geographical area for the development and delivery of the Network is bounded by: a) the City of London boundary with Westminster, Camden, and Islington; b) roads including Moorgate, Princes Street, King William Street, and London Bridge; and c) the River Thames. The indicative procurement dates for this opportunity are: 12/01/2026 - Deadline for initial clarification questions submitted (Enquiry Deadline) 26/01/2026 - Deadline for receipt of PSQ Response (Tender Submission Deadline) 23/03/2026 - Deadline for receipt of Interim Tender Responses 22/06/2026 - Deadline for receipt of Final Tender Responses 05/11/2026 - Assessment summaries & Contract Award Notice issued 26/11/2026 - Contract signature (Contract Start Date)

Notice Details

Publication & Lifecycle

Open Contracting ID
ocds-h6vhtk-05453f
Publication Source
Find A Tender Service
Latest Notice
https://www.find-tender.service.gov.uk/Notice/083343-2025
Current Stage
Tender
All Stages
Planning, Tender

Procurement Classification

Notice Type
UK4 - Tender Notice
Procurement Type
Standard
Procurement Category
Works
Procurement Method
Open
Procurement Method Details
Competitive flexible procedure
Tender Suitability
SME
Awardee Scale
Not specified

Common Procurement Vocabulary (CPV)

CPV Divisions

45 - Construction work

71 - Architectural, construction, engineering and inspection services

CPV Codes

45211360 - Urban development construction work

45232140 - District-heating mains construction work

45232141 - Heating works

71314000 - Energy and related services

Notice Value(s)

Tender Value
£4,342,000,000 £1B-£10B
Lots Value
£4,342,000,000 £1B-£10B
Awards Value
Not specified
Contracts Value
Not specified

Notice Dates

Publication Date
16 Dec 20258 months ago
Submission Deadline
26 Jan 2026Expired
Future Notice Date
19 Dec 2025Expired
Award Date
Not specified
Contract Period
26 Nov 2026 - 31 Aug 2068 Over 5 years
Recurrence
Not specified

Notice Status

Tender Status
Active
Lots Status
Active
Awards Status
Not Specified
Contracts Status
Not Specified

Buyer & Supplier

Contracting Authority (Buyer)

Main Buyer
The Mayor and Commonalty and Citizens of the City of London
Contact Name
Available with D3 Tenders Premium →
Contact Email
Available with D3 Tenders Premium →
Contact Phone
Available with D3 Tenders Premium →

Buyer Location

Locality
CITY OF LONDON
Postcode
EC2P 2EJ
Postcode Area
Central London
Country
England
Major Region (ITL 1)
TLI London
Basic Region (ITL 2)
TLI4 Inner London - East
Small Region (ITL 3)
TLI43 Haringey and Islington
Delivery Location
TLI31 Camden and City of London
Local Authority
Islington
Electoral Ward
Clerkenwell
Westminster Constituency
Islington South and Finsbury

Further Information

Notice Documents

Open Contracting Data Standard (OCDS)

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The Open Contracting Data Standard (OCDS) is a framework designed to increase transparency and access to public procurement data in the public sector. It is widely used by governments and organisations worldwide to report on procurement processes and contracts.

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