It seems almost surreal that an oasis amidst a deep forest sits within the city limits of Seattle. Situated on Lake Washington, the property quietly settles against a gentle creek in the woods near Matthews Beach. Custom crafted for renowned Seattle artist Alden Mason in 1958 by architect Charles A. Marsh Jr. and builder Tom Paulsen, “The Alden Mason House” stands as a true mid-century modern retreat in the heart of the Pacific Northwest.