Beach House

Does anyone know when Beach House was built? I suspect it might have been one of Hester’s creations or was it built by Henry Humberstone? Could the house where Henry in 1911 was building an addition to his house at seawall, Leigh Beck be the Beach House? When researching the family and noting the maiden name of Henry’s wife (Beach) and the fact that she died in 1909 I wondered was the place called Beach House not because of its location but in memory of Henry’s wife!