IN Brief:
- Belfast Harbour is procuring a three-storey extension to its existing Operations Engineering Workshop at Milewater Basin.
- The estimated £5.7m contract covers approximately 1,155 sq m of gross internal accommodation and associated works.
- Expressions of interest are due by noon on 13 November 2026, and no construction contractor has been appointed.
Belfast Harbour is seeking contractors for a proposed £5.7m extension to its Operations Engineering Workshop at Milewater Basin in Belfast, where it intends to accommodate a replacement Port Operations Control Centre. The three-storey building would add approximately 1,155 sq m of gross internal floor area, incorporating operational accommodation, offices, staff welfare facilities and associated site works. The development is at the procurement and planning stages; neither a construction contractor nor a start on site has been confirmed.
Belfast Harbour Commissioners issued the construction opportunity under reference P.447, inviting interested contractors to complete a pre-qualification process before any subsequent tendering. The £5.7m figure is an estimated contract value excluding VAT, rather than an agreed price. Applicants must obtain the pre-qualification documents through the harbour authority’s tender system and register their contact details to receive clarifications or updates. The opportunity has been advertised as a works procurement, with the detailed package made available through that separate process.
The proposed extension would sit to the south-east of the existing workshop on Barnett Dock Road. Belfast City Council received the corresponding full planning application, LA04/2026/1429/F, on 10 August and validated it on 11 August 2026. Its description covers the replacement control centre, ancillary office and welfare accommodation, and associated works. The application remained under consideration in the latest available planning record on 12 October, meaning that the issued tender does not itself establish consent for the building.
The procurement’s work classifications span general building construction, earthmoving and demolition, electrical installation, insulation, plumbing, mechanical installation and building completion. They describe broad procurement categories rather than a confirmed schedule of quantities or final construction specification. Neither the publicly visible notice nor the planning application description establishes the proposed foundation solution, structural frame, envelope materials or building services equipment. Contractors will need the controlled tender documents to assess the scope and allocation of design responsibilities.
Attaching new accommodation to an operational workshop also creates interfaces that would have to be addressed during design and construction. The junction between existing and new fabric requires structural and weatherproofing coordination, while utilities and internal circulation have to be considered across both areas. Working arrangements within the port estate would also need to accommodate site access and materials handling alongside ongoing harbour activities. These are project delivery considerations, not evidence that Belfast Harbour has specified a particular sequence of works or decided to close any existing facility.
The designation of the building as a replacement control centre gives the proposed accommodation an operational purpose beyond conventional office space. Belfast Harbour’s Vessel Traffic Service manages shipping movements across the port’s designated area and operates continuously, using radar and Automatic Identification System coverage. The port identifies its current Operations Centre as being at Milewater Basin. The published construction notice, however, does not identify control-system suppliers, list equipment to be relocated or specify an upgrade to the Vessel Traffic Service itself.
Separating building work from operational technology procurement avoids assuming that all elements of a control-room replacement form part of one contract. Such accommodation generally requires designers to coordinate power supplies, communications routes, environmental control and access for maintenance, although the specification and resilience requirements for this particular extension have not been published in the notice. The confirmed building programme comprises the control-centre accommodation, associated offices and staff facilities. Any equipment migration or operational handover arrangements remain to be established through the project documentation.
The advertised 1,155 sq m is gross internal floor area across the proposed accommodation, rather than the ground-level footprint of the extension. Equally, the £5.7m estimate covers the overall construction opportunity and associated site works, so dividing that figure by floor area would not yield a reliable benchmark for the building structure or fit-out alone. No cost breakdown has been provided for connections to the existing workshop, groundworks, building services or external works. Those elements can affect both contract pricing and site programme, but their allocation cannot be inferred from the headline estimate.
Belfast Harbour’s operating context is substantial. Its published 2025 figures record 24.3 million tonnes of cargo and 625,000 freight units passing through the port, while capital expenditure across its operations and estate totalled £39.4m during the year. Those figures describe the wider business rather than investment committed to the Milewater project. The harbour authority has separately set out an extensive infrastructure and estate development programme, within which the proposed control-centre accommodation represents a specific works procurement.
The immediate procurement timetable sets an enquiry deadline of noon on 4 November and requires completed pre-qualification responses by noon on 13 November 2026. Although a notice summary displays 14 November, the submission instructions give the earlier date, which should govern applicants’ responses unless Belfast Harbour issues a clarification. Indicative 2027–28 contract dates remain subject to selection and approvals; they should not be treated as an agreed construction programme.
