Four-bedroom house plans are popular with growing families, retirees, or anyone looking for a home design to accommodate a home gym or office. Maybe you are looking at four-bedroom house floor plans for your growing family. Or perhaps you are an empty nester wanting extra bedrooms for out-of-town guests, grandchildren, or aging parents. Many homeowners use extra bedrooms for exercise rooms, home offices, game rooms, etc., making them an ideal choice when you are looking for a little extra space and future flexibility.