Mansell has a ВЈ5.8m contract to tackle the first phase of the Edginswell business park in Torquay.
The project, for the Hawkins Trust, will include the construction of a three-storey office block, plus access roads to service the park.
The project is expected to be completed within 54 weeks.
The remaining phases of the scheme will include commercial, retail and further office buildings.
Holladay Properties begins office project
Work on Bible theme park suspended in Lebanon
Buckingham Group wins £35m Olympic Handball Arena contract