We build fully customized homes in the Tri-Cities and Southwest Washington. Landmark Homes was established by Mark Questad, who has over twenty years experience in every aspect of new home construction. Landmark Homes and our partners pride ourselves on flexibility and affordability.Landmark Homes has built a reputation of being "The Buyer's Builder." We have designed a wide variety of house plans to fit the needs of anyone in the market for a quality home. Building on one of our prime lots or a lot you already own, we have a plan that will work for you.