freebeer
What you are supposed to do here, is, fire up an editor of your choice and start drawing them.
We guys (and gals) are too few to add all the missing houses all over not just here, but everywhere.
Actually, I think I read some statistics on how long it might take to review and correct just the USian road network.  Not a pleasant sight.
What I've learned over time, if you want something done, do it yourself.  That's what drives OpenStreetMap.
And if you want it done well, work on it until it meets your standards.