its original design, following many alterations since its construction in the late 1800s. The eastern side of the Hayes is fronted by the new St. Davids 2 shopping centre. Prior to this it was home to Oxford Arcade, a post war construction that dated quickly and was underused given its central location. The southern end features the John Lewis department store and the new Cardiff Central Library, which opened in March 2009. The previous Central Library closed in 2006 to make way for the construction of the St. David's 2 shopping centre and was located a few hundred yards north-east on Bridge Street. As part of the St Davids 2 development, the Hayes was pedestrianised and repaved. A new public square was created at its southern end with a large, interactive public artwork as its centrepiece called Alliance, a high sculpture consisting of a large stainless steel and enamelled metal ring and an arrow column, which was initially meant to feature lights that would rise and fall with the tide. Caroline Street Caroline Street is a pedestrianised link between St Mary Street and The Hayes. The street has been a host to all kinds of stores but has seen a surge in chip and kebab shops, and as such is commonly known as Chip Lane or Chip Alley. Around 2003, the north side of the street was redeveloped after the demolition of the old Brains Brewery. In its place were luxury flats encircling the Old Brewery Quarter, where new shops, bars and restaurants were erected. The pavement on the street was retiled as part of this development. Southeastern city centre Callaghan Square This development, built in 1999, extends the central business district south of the mainline railway. Eventually the main development will include approximately 850,000 square feet (77,000 m2) of office space and other uses, of which approximately 350,000 square feet (33,000 m2) is complete (with the largest occupiers being Eversheds and British Gas). Further phases are unlikely to be built on a speculative basis. The initial masterplan suggest that the final phase, yet to be commenced, will also include hotel and residential use. Nearby offices on Tresillian Way (housing The AA, and Lloyds TSB Black Horse finance amongst others) plus further potential developments have turned the area relatively quickly into one of the largest office locations in Central Cardiff. Within a few years total office space in the area