Muir Group Housing Association is merging two of its offices to new premises on Lightfoot Street in Hoole, Cheshire.
The association announced it is moving from its current headquarters in Dee Hills Park in Chester to a new office at its annual general meeting and staff conference.
The association's office in Helsby will also move into the new premises in Hoole.
The new office will bring together staff from central services, finance, human resources, marketing and ICT departments, currently based at Dee Hills Park, and staff from housing services, development and customer services departments currently based at Helsby.
John Bellis, chief executive Muir Group Housing Association, said: "Bringing staff from these two offices together will bring improved efficiency throughout the association and benefits from this will be passed on to residents.
"However, our other area offices in Blackpool, Burnley and Huntingdon will continue in their current locations offering focal points for residents living in those areas."
Muir Group Housing Association manages more than 5,000 properties nationwide and employs 170 staff.
Some 100 staff will be working at the new head office following refurbishment which is expected to be completed by the end of 2012. Work will begin on the renovation in autumn.