Clarifying your mission is critical. It will help you figure out the resources you’re going to need and what gaps (if any) exist.
Whether for your own purposes or to have conversations with others, you need to be able to clearly express your goals and where you fit in with the needs of your neighbourhood and potential members. Realistically assessing what resources you can draw on is important. If you don’t have money, or land, or experience developing housing, working with others is the most practical way forward.