It is useful at the start of every project to identify WHY your community will need your project and WHAT problem you are trying to solve. Similarly, you may want to research HOW and WHERE other related projects are delivering solutions and whether you could work alongside them. You may also want to consider what resources will be needed.
Talk to others in your community. WHO is likely to have an interest in developing community projects and therefore could offer you further support? A good start would be to approach your local council or local community association (if you have one). Where applicable, approach your local resident association, good neighbour scheme, a local charity or church group. Consider any agency that might have a legal responsibility or vested interest in your activity and what role could they play?
Remember to go beyond your usual networks - make the most of public displays, use social media channels and ask interested people who else might want to get involved.
But be careful - making sure that you have the right people behind your project can make or break its success. Are your supporters influential people who can provide access to other community groups or potential sponsors? Do they have the enthusiasm, time and energy needed to deliver the project?