I am interested in buying a smaller home (around 1000-1300 sq ft) in an up and coming part of town. The majority of these homes are not more than 3 bedroom, 2 bath. I would like 4 bedrooms at around 1800 sq feet.

When I am looking for homes, how do I know if the house is a good candidate for an addition (room, rooms or whole second story)? Perhaps just ripping down the house and starting over?

How do I figure out how much something like this would cost? How do I even begin researching this topic?

Addition to House