The firm has entered consultation with staff with plans to cut headcount by around 10%.
It presently employs around 400 staff across the group.
A spokesperson for Watkin Jones Group said: “Against the current challenging economic environment, we have undertaken a detailed review of our company and made the very difficult decision to propose a reduction in the number of roles in some of our teams.
“This was not a decision made lightly but we believe it is necessary to operate as effectively and efficiently as possible in support of our long-term success.
“We are now entering a consultation period and will do everything we can to support our people.”
