Hiya Gary,
It's really a very broad question you're asking-- a bit like me going onto a home improvement forum and asking how do I convert my loft to a bedroom with a private bath. There are so many issues to deal with right? Getting site rankings is the same way and there are several components: keyword selection, stuff to optimize your site, on the site itself, and some has to do with the relationships that you build outside of your site.
The real issue might be, if you're the builder, is it worth your time to learn
seo? It might be better to hire someone to do
seo for you (btw I don't offer any
seo services so that's not where I'm going with this). If that's the case, you really have to be careful because there are a lot of scams out there. Ask them about their methods and ask here, if those methods are legit. If they don't want to tell you their methods, pass. Now if you are willing to learn
seo, a book, it's free, that's recommended is
SEO Fast Start (Google it). Once you've got a grasp of that, you'll be able to navigate the world of
seo easier because honestly, there are a lot of scams. Of course, you can always ask around here whether or not something is a scam.
Hope that helps, at least a little bit,
Chris