I would be working as a civil engineering consultant, so clients could be anything from a private housebuilder wanting advice or design of a small road/drainage system etc, to developers undertaking estate designs, contractors who undertake design and builds and mayby public sector clients. Could undertake project management, design, drawings, prepare and run contracts etc.
Set up costs wouldn’t bee too much, office, pi insurance and quite a bit of marketing initially.
It’s who you talked to, what advice did you get, what grants did you get, any advice from you….. I’m mostly after more than the civil engineering aspect.