We have a 1650 sq. ft. home with a medium size backyard. My husband is retired and I work full time. Our boy Sam is an inside dog, but has a 20'x5' pen on the side of the house if we are going to be out for longer than 6 hours. Sam gets two walks a day, or 1 walk and a trip to the river, or the dog park. We live a 10 minute walk from two different dog parks.