The FAW has unveiled a £3m extension to its headquarters at the Vale Resort in Hensol.
A newly extended gym facility will be used by Wales' national teams as part of the wing, which will include more space for analysis and sports science.
New changing rooms have also been built for both players and coaches, along with a lecture theatre for team meetings and media press conferences ahead of matchdays, called the Wynnstay 1876 - a nod to the creation of Welsh football's governing body at a Wrexham hotel nearly 150 years ago.

FAW chief executive Noel Mooney said: "We’re very excited to open the new wing at the Hensol headquarters, further investing into the Cymru national teams and the wider association."
"It’s vitally important that our national teams and staff have the best possible facilities to enable us to reach our full potential, both nationally and on the world stage.”
The FAW took over the site five years ago, previously home to Cardiff Rugby - and it's taken 18 months to build the new extension, which includes more office and meeting room space for the FAW's adminsitrative staff.

The wing is also powered by solar panels as part of a sustainabiility drive, which includes a garden area to support local wildlife, a new building management system to monitor power usage and office chairs made out of recycling material.
The Wales men's team will make their first use of the extension ahead of their World Cup qualifier against Kazakhstan next week - with manager Craig Bellamy due to name his squad on Thursday.

Calls for Welsh Government to Match England's Pub Business Rates Cut
Caerdydd Penarth MS backs campaign to make rail station more accessible
Barry Waterfront Regeneration Project Moves a Step Closer
Age Cymru Responds to VAT cut to household electricity bills
Old Post Office in St Brides Major could be converted into a new house and set of flats
Kanishka Narayan retains AI Minister role as Burnham Signals Early Priorities
Victorian Building on Broad Street could become a new daycare centre
Barry to Host First-Ever Street Art Festival This August
Barry entrepreneur named finalist in major UK awards recognising top business leaders
New Barry watersports facility and housing
Man charged after Skomer Road assault
Green Flag Award continues to fly at Merthyr Dyfan Cemetery
Cowbridge youngster reaches GoHenry Dream Big final
The first young people in Wales will receive their life saving Meningitis B vaccination from today
Beloved Stanwell School teacher retires after inspiring generations for 35 Years
New £12m Maintenance Facility Installed at Canton Depot to Support TfW’s Expanding Fleet
Bearfield Skatepark Opens Following Community‑Led Design Process
Police Increase Patrols in Barry’s Kings Square Following Community Concerns