Hi Don,
My gut feeling is that a straight JV partner might be right for you. You are a qualified professional in the property industry and you have no doubt a track record of success and satisfied clients and testimonials. Given the right deal, well put together (end product, numbers, target market, exit strategy, budgets, layouts and floor plans etc) I think you'd have a passive investor very interested in partnering up with you to offer the finance.
You also have enough capital to fund the early stages if needs be and depending on your preferred area (again there needs to be a good investment reason for your choice if you have one?) you may even have enough capital and secondary security for your first deposit (coupled with a full bridge or BTL mortgage on the first charge deal).
Would you consider a JV (Joint Venture) partner?
Do you have a target location in mind yet?
You are already starting the journey by being here so well done for taking this very critical step... Now the more knowledge you have the more you have to offer a potential investor so keep learning...