Work won by contractor and housebuilder includes a partnership contract for 173 homes in Bude Cornwall.
Galliford Try has secured £91m of affordable housing contracts since its financial year ended in July.
The latest work secured is for 173 homes in Bude Cornwall, which is being built by subsidiary Midas Homes in partnership with North Cornwall District Council, Westcountry Housing Association and the Guiness Trust.
Galliford Try chief executive David Calverley said: “Affordable housing is one of the key markets for the Group and we are benefiting from the growing level of expenditure in the sector.”
“Working with housing associations on their preferred procurement routes, we can use our expertise to help them meet their objectives for delivering homes as well as providing us with good quality opportunities.”
Galliford try has also been awarded contracts with Devon and Cornwall and the Toynbee Housing Association, with whom the group completed a 105-unit mixed-use scheme at Maryland Point in Stratford in the last financial year.