I was challenged at migrating a static site (all HTML pages) into a fully functional WordPress site that maintains the original design qualities and at the same time adds depth by providing extra functionality for the webmaster.
There are 2 common ways to develop a WordPress site: First is developing your site from the ground up. The second is developing it on top of some pre-existing functionality (aka "framework"). I have chosen to develop the site on top of a in-house curated framework which I have developed for such occasion.
We ended up with a site that is both fast, looks just like the original design and that easy to maintain. New products are constantly being added to the catalog by the client.