We do a pretty good deal of site selection with data behind it and use experian as a data source. 

Do a search for Background Checks on the Passive Pockets site.

Make sure utilities are available, and that you have tap fees included in your estimate, as well as engineering (site plan), architectural plan, and other bits you might need to consider for your market (landscaping and costs of sale, for example).

It's been years on end I have been doing this and still, to this day every time I get asked this question, I so desperately want to say "Nope!

Happy to have found this site. 

If they are professional, they can explain this quickly and easily.

I'm having a hard time finding any estimating tools for this kind of a project, adding a story and multiple BR/1 BA, and wondered if there were any tools, sites or recommendations any of you have for this kind of a project. 

This outlook is reflected in the prices resulting in poor initial cash flow but historically great long term cash flow. 

What kind of system is this? 

Where is your site at?