Do you build to suit?

I've been trying to get the tiny lot out of my mind to little avail!  I've started three homes recently, one is almost completed and ready to go. (Pics coming soon)  None of them are anything fancy, at least in my mind, but I like them and I think that they suit the sims that I designed them for.  So I ask you, when you build your homes do you already know which family is going to get them?  Are you anything like me and you tend to create a few sims, play around with them, and try to get a handle on the neat little careers and hobbies the game has to offer before you fall into your normal role?

 My current obsession is a gardener sim.  I don't know why but I made her a gardener/author.  She was the original intention for the tiny lot.  Eco-friendly, Green Thumb, Angler, Natural Cook and Loves the Outdoors being the perfect combination for my "green" sim.  As I build, geared towards other families, I keep coming back to her and finding I'm throwing in some "greener" options to these homes.  I don't think the idea will ever leave my mind until I have built the home, so I'm not giving up.  I'm hoping Generations treehouses and bunkbeds will give us the option of ladder stairs - it's an exciting prospect! 

I guess I'm wondering a couple of things - am I the only whack job that builds with a particular family in mind?  and is too much greenery a bad thing? 

What do you think?