Single story ramblers or ranch style homes, built at a fevered pace in the 1950's and 1960's, can be one of the most sterile house styles built in the 20th century. With their open layout and larger home footprint, they require a larger lot than most homes, which really was not a problem as people began to build suburbia. All had low roof lines, over hanging eaves and patio doors, all looked so much the same.
Don't think that transformation is impossible. With an open mind and a dash of the bold, a rambler can be so much more.