ronan_d_john is correct, unless you can add some functionality to the site you don't have much to sell - there are plenty of cheap solutions for someone looking for a simple site.
that said, you might get some part time work with existing development companies to do the design on their projects (with them puting the code behind it), generate mockups for demo's/tenders etc. but you need to able to design the site ie come up with ui, branding, accessibility, usability etc.
above is how my company generally works, so we have a couple of small 'partner' (read 1 or 2 person) design companies that we call when need them, so they might work for 3 or 4 weeks on what is a 6 month dev project.