I am builder/developer working on a small footprint community of approx. 1200 sq. ft. homes (6 side x side duplex units on a single level built on slab. I am interested in Prairie Style and the Not So Big philosophy. The site has 5-10% hillside grade and nice southern view.
does anyone have some plans to fit the bill?

I have not seen too many duplex plans on the internet. Add to that the specifics of your lot and desired style - I think you might be better off hiring a competent residential designer or architect. Best of luck.

Hello!
We are a architectural design firm, specialized in smaller homes. Most of our collection is below 1800 sq.ft. Please have a look and let me know what you think!
Entire collection: www.drummondhouseplans.com
Small house & cottage plans: http://www.drummondhouseplans....ll-home-designs.html
Duplex & Triplex: http://www.drummondhouseplans....triplex-designs.html

Any comments & suggestions are welcome!
Thanks,
Marie-France Roger
DrummondHousePlans.com