How we select the top construction projects in Wales
We’ve curated the Barbour ABI data to bring you the top construction projects in Wales in 2026. This includes the top construction projects by total value across all sectors with a start date 6 months back, and 6 months forward. Please note that we have excluded all masterplans from our league tables.
Atlantic Wharf Music Arena & Travelodge Hotels is Top Construction Project in Wales
According to Barbour ABI planning data the top construction project in Wales is the Atlantic Wharf, Cardiff Bay – Music Arena & Travelodge Hotel valued at £300m. The CWL2 Data Centre Campus project is in second place with a project value of £285m. In third place is the Pembroke Power Station, Pwllcrochan – 350MW Battery Storage System valued at £200m.
Last Updated: February 2026
Top Construction Projects 2026
Regional Tables: United Kingdom | South East | South West | East of England | East Midlands | West Midlands | Northern Ireland | North West | Yorkshire & the Humber | North East | Scotland
City Tables: London | Birmingham | Liverpool | Manchester | Aberdeen | Cardiff | Nottingham | Glasgow |
| Position | Project | Main Sector | Location | Start Date | Project Value | Project ID | View Project |
|---|---|---|---|---|---|---|---|
| 1 | Atlantic Wharf, Cardiff Bay – Music Arena & Travelodge Hotel | Leisure | Cardiff | Sep-25 | £ 300,000,000 | 12032395 | View Project |
| 2 | CWL2 Data Centre Campus | Commercial & Retail | Vale of Glamorgan | Mar-26 | £ 285,000,000 | 12727863 | View Project |
| 3 | Pembroke Power Station, Pwllcrochan – 350MW Battery Storage System | Utilities | Pembrokeshire | Mar-26 | £ 200,000,000 | 12735148 | View Project |
| 4 | Plot C, The Airfields Delta – Paper Mill Facility | Industrial | Flintshire | Apr-26 | £ 124,000,000 | 12571929 | View Project |
| 5 | Erebus – 100MW Offshore Floating Wind Farm | Power & Utility | Pembrokeshire Coast National Park | Jan-26 | £ 100,000,000 | 12533135 | View Project |
| 6 | Carrog Ganol – 300MW Battery Energy Storage | Utilities | Anglesey | Apr-26 | £ 90,000,000 | 12688295 | View Project |
| 7 | Oaklands 50MW Solar Farm & 50MW Battery Storage | Utilities | Vale of Glamorgan | Oct-25 | £ 88,000,000 | 12627389 | View Project |
| 8 | St Richard Gwyn Catholic High School | Education | Vale of Glamorgan | Nov-25 | £ 64,000,000 | 12709152 | View Project |
| 9 | St Fagans Road, Phase 1 – 307 Houses | Residential | Cardiff | Apr-26 | £ 62,760,000 | 12839772 | View Project |
| 10 | Atlantic Wharf, 1 East Bay Close- 353 Apartments | Residential | Cardiff | Apr-26 | £ 60,000,000 | 12653793 | View Project |
| 11 | Carno 3 Wind Farm – 41.6MW Wind Farm | Civil Engineering | Powys | Feb-26 | £ 60,000,000 | 11854098 | View Project |
| 12 | Llantrisant Health Park | Medical & Healthcare | Rhondda | Apr-26 | £ 60,000,000 | 12864335 | View Project |
| 13 | Former Michaelston College – Wellbeing Village Mixed Development | Residential | Cardiff | Jun-26 | £ 49,142,500 | 12796417 | View Project |
| 14 | Plot B, The Airfields -Storage, General industrial & Ancillary offices | Industrial | Flintshire | Sep-25 | £ 45,849,000 | 12662470 | View Project |
| 15 | St Lythans Road – 42MW Parc Worlton Solar Farm | Utilities | Vale of Glamorgan | May-26 | £ 42,000,000 | 12658214 | View Project |
| 16 | Mumbles Pier Project | Hotel & Catering | Swansea | Apr-26 | £ 39,000,000 | 11846558 | View Project |
| 17 | Caerphilly Leisure Centre | Sports | Caerphilly | Apr-26 | £ 38,000,000 | 12644563 | View Project |
| 18 | Skyline Swansea, Kilvey Hill – Leisure Park | Leisure | Swansea | Apr-26 | £ 37,000,000 | 12753225 | View Project |
| 19 | 22 Newport Road, Adamsdown – Student Flats & Commercial Space | Residential | Cardiff | Dec-25 | £ 35,000,000 | 12288192 | View Project |
| 20 | Cardiff & Vale College – Barry Waterfront Campus | Education | Cardiff | Aug-25 | £ 35,000,000 | 12723905 | View Project |
| 21 | East Aberthaw – 35 MW Solar Farm | Utilities | Vale of Glamorgan | Jan-26 | £ 35,000,000 | 12623875 | View Project |
| 22 | Foel Trawsnant 35MW Wind Farm | Utilities | Neath | Jul-26 | £ 35,000,000 | 12101558 | View Project |
| 23 | Mynydd Fforch Dwm – 35MW Wind Farm | Utilities | Neath | May-26 | £ 35,000,000 | 12637123 | View Project |
| 24 | Pembroke Power Station, Pwllcrochan – Hydrogen Production Facility | Utilities | Pembrokeshire | Jan-26 | £ 33,000,000 | 12801587 | View Project |
| 25 | Coed Ely – Plot C4 Industrial Unit | Industrial | Rhondda | Apr-26 | £ 30,937,000 | 12755737 | View Project |
| 26 | Brynrhyd Farm – 30MW Solar Farm | Utilities | Swansea | Jan-26 | £ 30,000,000 | 12627388 | View Project |
| 27 | Gladstone Way, Hawarden – 300 Houses | Residential | Flintshire | Mar-26 | £ 30,000,000 | 12775913 | View Project |
| 28 | Indurent Park, Llanwern – Industrial Warehouses & Offices (Phase 6) | Industrial | Newport | Dec-25 | £ 30,000,000 | 12826066 | View Project |
| 29 | Longcross Court – 706 Bedroom Student Accommodation And Commercial Unit | Residential | Cardiff | Nov-25 | £ 30,000,000 | 12793057 | View Project |
| 30 | Morlais Tidal Energy Project (240MW) – Anglesey | Utilities | Anglesey | Jan-26 | £ 30,000,000 | 12352426 | View Project |
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Top Construction Projects across the UK
Barbour ABI tracks and reports on projects happening across the UK from pre-planning stages right through to completion. Our 3,000 happy clients use this data to supply their products and services on projects that are right for them, with the most up-to-date contact information available on the market.
Top Construction Companies
Access the top 100 construction companies in the UK. The companies include top contractors, architects and clients and are ranked by total value of projects across a 12-month period and can be filtered by role, number of projects, value, and links straight to the Barbour ABI project leads platform. View the top construction companies overall in the UK such as London as well as major regions and cities.
Tender League Tables
Monthly Top 50 League Tables from Barbour ABI
Barbour ABI’s Top 50 League Tables is designed to provide company intelligence for those working within construction and beyond. We report on the top 50 clients, architects and contractors for the month, as well as the last 12 months.
We publish these league tables directly on our website each and every month for free.
