The previous building on the site was Elisabeth House, an office block constructed of concrete and built in 1960, and which had weathered badly.

The choice of limestone was exacerbated by the need to remain in context with listed buildings in the vicinity and the desire to avoid weathering which is often seen in concrete.

One St Peter's Square was designed in a simple, modern classical style with high quality Jura limestone columns to fit in with the Central Library opposite.

A sweeping top floor balcony perches out over St Peter's Square, providing a focal point for passers-by.

As part of the plans, the Central Library and Town Hall Extension were renovated (a process which began in 2010 and was completed in 2014) and the landscaping of the square with trees.

[21] As of February 2023, the building is occupied by KPMG, DLA Piper, Addleshaw Goddard, Irwin Mitchell, WeWork, Forvis Mazars and CBRE.