Unique property. Once in a lifetime opportunity. This 6900+ square foot home sits on a exceptional 22,600+ square foot flat lot in a desirable Beresford Manor neighborhood in San Mateo. Each one of the 12 extra spacious bedrooms is a suite with 1 standard sized bedroom. The second floor has its own kitchen, living room, and dining room with 2 suites. Features include sunlit office, formal dining room, inviting patio adjacent to a gated pool, and an attached garage. Home is conveniently located close to Serra High School, Laurelwood Plaza, Parks, and Highways 101/280. This home is one of a kind with endless possibilities. A MUST SEE!