National Savings & Investments has completed a £3m office upgrade of its headquarters building in Blackpool.
Work involved the extension and refurbishment of the building incorporating a new call centre and the Electronic Random Number Indicator Equipment, known as ERNIE, which generates the winning Premium Bonds numbers each month.
National Savings & Investments appointed DTZ to project manage the office upgrade and as a result of adopting modern technology to the whole of the building rather than just the new extension, it provides a carbon saving of 51 tonnes of carbon dioxide a year.
This amounts to an annual saving on energy bills of £12,957 and lifted the Energy Performance Certificate rating of the building from a potential D to a B and raised its BREEAM rating from a 'poor' to a 'very good'. The internal area of the building is 47,038 sq ft.
John Edwards, director of project consultancy at DTZ, said: "It has been a pleasure being involved with this project and in assisting NS&I to provide a greatly improved and sustainable base for its staff and those of its business partner Siemens Information Services."
National Savings & Investments owns the site and is looking to sell part of it. However, DTZ said any sale excludes the area of site containing the Moorland Building.
Skelmersdale-based Construction Partnership UK were appointed to build the new call centre and office extension.