In the best of all possible worlds, you live in a house with a fenced yard. Not every dog, however, needs a picket fence and a large, grassy backyard to be happy. Just keep these issues in mind as you pick your perfect pup.

Matching Activity Levels With Space

Generally, high-energy, active dogs need more space, like a yard or a dog run, to satisfy their need to move around.

What if you live in an apartment? Most toy breeds and some larger breeds live comfortably in apartments as long as their exercise needs are met. Many toy breeds get enough exercise just racing around the apartment, but larger breeds need a walk around the neighborhood or park a couple of times a day to stay healthy and happy.

Great Danes, for instance, can live happily in a smaller environment because they aren't very active between exercise sessions. On the other hand, some terrier breeds, though small, are very active and may need the benefits of a yard or a run.

Neighborhood Concerns

If every yard on your block features a frolicsome, outspoken canine, it's likely that no one will notice another voice in the choir. On the other hand, if you live in an apartment building, your neighbors may complain to the super if your doggy diva exercises her vocal chords too frequently.

Whether you live in a house or an apartment, if you're a renter, pet ownership is more of a challenge. Many landlords don't allow pets. And even if yours is nice enough to let you share your space with a four-legged friend, you'll probably need to pay a one-time, nonrefundable pet deposit up front. And of course you'll be responsible for repairing any damage your pet causes.

Need more help choosing the right breed for your home and life? Your veterinarian can help, or you can do some more research online, at your local bookstore or at the library.