Our home (not pictured) is a ranch-style house with one floor.PattieS/Getty ImagesSeven years ago, we took our ranch from three bedrooms to two to make the primary bedroom bigger.My daughters' sharing a room has led to little space, lots of clutter, and constant arguments.Now, we're planning to renovate again to add a second floor and give them their own rooms.Seven years ago, my husband and I took our 900-square-foot ranch from three bedrooms to two.Much of our $60,000 renovation budget went to a new kitchen and relocated basement stairs, but we used the rest to split the middle bedroom in two.