The challenge for Scott Tallon Walker who were appointed joint architects with HOK SVE (Populous) was the creation of the new international stadium for rugby and soccer at the site of the existing Lansdowne Road Stadium, Dublin, worthy of the history attached to the oldest international rugby ground in the world. The design includes the required 50,000 seating capacity and all the facilities expected in a modern stadium, and all within the existing restricted footprint. The building form is a fully site responsive design solution, keeping its height at its lowest closest to the adjacent two storey houses. The site is bounded by residences and the Dodder River, and is bisected by the main Dublin to Wexford railway line. Crowd management within a residential street network, that includes a railway crossing, riverbank walkways as well as bridges over the river resulted in the inclusion of a tunnel underpass to enable the level-crossing to remain closed during events, a new passenger concourse for the railway station, upgrading of the river bank to allow safer access and to provide flood defenses, as well as the demolition of one house to create wider access to the stadium. The use of a transparent shingled skin enables the organic form to wrap around the concourses, seating tiers and the pitch. The enclosure creates a highly atmospheric seating bowl, so ensuring the continuation of the ''Lansdowne Roar'', and the stadium's curvilinear form is now instantly recognisable on Dublin's skyline as Ireland's international stadium.