The £500m Paradise development is taking another huge step forward as work begins on the foundations of the first two landmark, Grade office buildings, One and Two Chamberlain Square.

Approximately 200 piles, between 900mm and 1200mm in diameter, will be drilled up to 20 metres into the ground. These will support the weight of the new buildings which, when fully constructed, will form the first phase of the Paradise development. Initially, the piles will be focused on the core area of One Chamberlain Square, then progress through the whole footprint of One and Two Chamberlain Square.

A rig weighing around 100 tonnes will be used to carry out the piling work, which will continue until early 2017. A separate 75-tonne crawler crane will also be needed to service the rig, adding to the number of pieces of large plant already operating on site.

Both the rig and the crane will be fully visible to passers-by, adding yet more visual interest to the site, which has been a hive of activity since demolition started.

This latest milestone is particularly exciting for professional services giant PwC, which has agreed to take the top four and a half floors of One Chamberlain Square as its new Birmingham office. The company, and its staff, will now start to see its new home take shape.

Carillion, contractors for the demolition, infrastructure and enabling works, will oversee the piling work, which will be undertaken by Cementation. Carillion was recently announced as the contractor for One Chamberlain Square, which is expected to complete in Autumn 2018.

Rob Groves, Regional Director of Argent, the development manager for Paradise said: “It is great to see this next phase of Paradise being delivered with the foundations marking the beginning of the construction process for One and Two Chamberlain Square.

“There has been a great deal of interest in the scheme throughout the demolition process, and we are sure that will continue. It is very exciting for us to see the site now officially turn from a demolition site to a construction site.”