Tetra Tech delivered a multi-disciplinary consenting, planning and environmental services package that enabled major investment and job creation at Pembroke Dock.
We provided a multi-disciplinary service for the development of The Pembroke Dock Infrastructure (PDI) project to support the emerging marine renewable energy sector developing off the Welsh coast in the Irish Sea.
The project included the regeneration and redevelopment of the existing Pembroke Port in Pembroke Dock. The aim was to create a ‘mega’ slipway into the Milford Haven Waterway, a fabrication building, a high bay vessel repair and maintenance building, storage, assembly and laydown areas whilst also enabling existing uses, such as the Pembroke Dock-Rosslare Ferry Terminal to continue to operate. The project is part of the UK Government’s £1.3 bn flagship City Deal for Swansea Bay designed to create over 9,000 jobs in southwest Wales.
Challenge
The project required a complex consenting framework due to the many statutory designations affecting the historic port. This was the only Admiralty port in Wales and was a flying boat station during World War II. It includes several listed buildings and scheduled ancient monuments and is located within a conservation area and a Registered Historic Landscape, close to Pembrokeshire Coast National Park. The Port Authority required flexibility in terms of the consents delivered due to the varied marine renewable energy operators, device developers and supporting industries that could potentially occupy the site in the future to serve this emerging industry.
This meant that outline planning permission was needed together with a marine licence, three listed building consents for part demolition and infill of some of the structures, and conservation area consent for the demolition of the unlisted buildings.
Solution
Our team prepared a combined marine and terrestrial Environmental Impact Assessment (EIA). This required extensive consultation and engagement with key stakeholders, including Pembrokeshire County Council, Natural Resources Wales and Cadw, and detailed coordination of the project team activities to ensure a successful outcome in terms of the multiple consents required and in order to assist in delivering over £60m in investment and up to 975 jobs to the area.
It was vital to clearly demonstrate the substantial community benefits the development would bring, in terms of the economic advantages and combating climate change.
At a glance
Client
Port of Milford Haven Authority
Location
Pembrokeshire, Wales
Services
Air quality, coastal processes, environmental impact assessment, ground conditions, heritage, hydrology and flood risk, landscape, marine ecology, marine licensing, noise, terrestrial ecology, planning consultancy
The project featured in this article was undertaken by RPS, A Tetra Tech Company and originally published on RPSgroup.com. In March 2026 RPS rebranded to Tetra Tech.