Born in Mexico, Loubet died in Contra Costa County, CA, at the age of 82. His last residence was in the 94595 zip code of Walnut Creek, CA.

SSN: 548-03-8599. A notice of Loubet's death appeared in the American Institute of Architects Journal in 1974: "Deaths," AIA Journal, 61:5, 05/1974, p. 26.