I don't know, my condo is 1095 square feet (probably only about 1050 usable living space, though) and has 2 bedrooms, office, and 1.5 bathrooms. The office could EASILY be made in to a bedroom if it had to be. Link to the floorplan is below, but the best way would probably be to knock out the wall between the Den / "Flex" room, make a closet and voila! Honestly my parents house in Calgary was a 3 bedroom bungalow (only one large bathroom, though) and just a bit over 1000 square feet, we lived fine (didn't know any better...). People in the 50's were smart with their designs and use of space.
http://www.lhvancouver.com/pdf/lherm...out_planD1.pdf
Anyways, I don't find myself short on space with 3 rooms, 1.5 bathrooms at under 1100 square feet.
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http://www.flickr.com/photos/syume/