New Cardiff Bay Arena

New Cardiff Bay Arena
Atlantic Wharf Arena
Rendering of the proposed arena
Interactive map of New Cardiff Bay Arena
LocationAtlantic Wharf, Cardiff Bay
Coordinates51°28′07″N 3°09′52″W / 51.4686°N 3.1645°W / 51.4686; -3.1645
OwnerCardiff Council
OperatorLive Nation UK
Oak View Group
Capacity16,500
15,358 (seated)
Construction
Broke groundSeptember 2025
Opened2028 (projected)
Construction cost£300 million (projected)
ArchitectPopulous, HOK
BuilderMcLaren Construction Group
General contractorWSP Global, Turner & Townsend
Main contractorsRobertson Group
Website
Project website

New Cardiff Bay Arena, also referred to as Atlantic Wharf Arena, is a indoor arena under construction in Atlantic Wharf, a southern area of the city of Cardiff, Wales.

The multi-purpose 16,500-capacity arena is being built on a site near to Cardiff Bay's Wales Millennium Centre (WMC) and is expected to open in 2028. It forms part of a wider masterplan to regenerate the city's wharf area with a large mixed-use development.

After a number of delays, construction began following the groundbreaking ceremony in September 2025 and is expected to be undertaken in four phases over multiple years: the first being the construction of the new arena, WMC's digital and "immersive" arts theatre, a replacement hotel and multi-storey car park followed by the relocation of the Red Dragon Centre's tenants into a new complex. The third phase of the masterplan would include a new office space delivered along with an additional hotel and finally new homes and apartments, with potential for more commercial space; the latter neighbourhood phase is dependent on proposed plans being approved to replace Cardiff Council's ageing County Hall with a new smaller purpose-built building.