Rok is restructuring into five regional divisions after spending almost £60m on acquisitions in the past year.

Garvis Snook, ROK’s chief executive, said he was arranging the business into five “Rok bands” – Scotland, northern England, the South-west and South Wales, the South-East and London, and the Midlands.

The rejig, which will formalise Rok’s regional presence after its surge in size, is also intended to provide a framework for future purchases.

Snook said: “At the moment our business is made up of smaller sub-units, with some more evolved than others. This is a logical progression and will bring a structure to the company.”

Snook said Rok was in the process of appointing a managing director for each region. He expected they would be a mixture of internal and external appointments. Scotland already has a managing director.

The restructure follows rapid expansion by Rok. The company bought Midlands firm Sol Construction for £21m last month. In the past year it has also bought Scottish contractor Tulloch Construction for £31.3m, Birmingham firm Kingfisher Building for £4.5m and Liverpool-services and maintenance business KM Construction for £250,000.

Rok has said it would continue to make acquisitions, with the Midlands and East Anglia thought to be particular targets. This is part of a plan to become the “nation’s local builder”.

Turnover for the year to 31 December 2006 rose 24% to £689m, up from £556m in 2005. Pre-tax profit rose 33% to £22.4m.