We've got a patio villa with the W/D inside. Bottom-of-the-totem-pole equipment - and boy howdy are they noisy!!! But in the balance of things, we like them inside the house in spite of the racket when they're running.
Note: Current patio villas are being built with a pocket door to close off the laundry area from the kitchen, I believe. We don't have that in ours - it would undoubtedly help to cut down on some of the noise.
Bill