I think I've got something for you...

Believe it or not, these are the droids houses you're looking for!

Not to be a self-plug or anything, but given that I'm working on what you seem to be looking for, I can't help but link you to my BAT thread. In there you may download some beta versions of the aforementioned houses:
http://sc4devotion.com/forums/index.php?topic=14033.msg464493#new
Sir BIPIN! Please accept my sincere apologies for responding to your follow-up since July! I completely forgot that in this forum, I have to 'manually' select the "Notify" option , even for discussions I had initiated. THANK YOU ! THANK YOU! THANK YOU! for these! YES I have been looking for more sloped residential ploppable and growables ! You have MADE MY DAY!
You "DO" know that Your MONUMENT has been erected in Peyton Place - Stepford Island as one of the Founders of the S.M.A.!