Affordable Apartment Community. Income and student restrictions apply at this community. To determine eligibility, please contact the Leasing Office for current income limits. Addison on Fourth Apartment Homes is an affordable apartment community located in the heart of downtown Seattle between 4th Ave S. and Jackson offers the perfect location for downtown living. Addison is located close to the stadiums, major transit, restaurants, shopping, and much more. The International District and Pioneer Square are just blocks away. Youll enjoy on-site amenities such as the resident lounge, fitness facility, and on-site management means convenience for you.Call or visit us online to schedule your tour of Addison Apartments and learn about our affordable community. With a location close to several art galleries, restaurants, cafes, and landmarks, youll love calling Addison on Fourth your new home!