Web development is the process of putting the website together. A web developer helps purchase your website url  (site name) and host (space for the site to live).

This individual works directly with you to either helps you select a template with a preset layout for you to use or works with a graphic designer to create a completely custom layout. Using a templates reduces the cost of website development because part of the work is done, but there are many build in options and ways of customizing the layout to give it a fresh, unique that speaks to your vision.