Chase Commercial has let the top floor of its recently-completed 25,750 sq ft Avon House, at Buntsford Gate Business Park, to Yell.
The international directories business has taken the space on a ten-year lease, at £16 per sq ft and will use it as a local sales office.
The four-storey Avon House forms part of Chase ' s ongoing development at the business park.
It also includes two standalone office buildings and a courtyard office development of 36,250 sq ft, comprising 15 self contained units, of which just three now remain.
Jon Gardiner, associate director at Savills and acting agent for Yell, said: " The move has been warmly welcomed by Yell's local team as the company continues its nationwide strategy to enhance the quality of offices across its portfolio."
Simon Taylor, Yell's head of property and support services in the UK, added: " Initial feedback has been excellent. The accommodation is superb, it is located close to the motorway and provides a modern, spacious and clean environment with easy parking - perfect for our busy sales consultants."
Joint agents, NAI Fuller Peiser and KWB acted for Chase Commercial, while Yell was represented by Savills.