His parents were Luis Porrata-Doría, mayor of Ponce in 1898, and Ana Gutierre de Pando.
[6][7] Returning to Puerto Rico, Porrata-Doria became director of Public Works for the Municipality of Ponce from 1912 to 1916.
He also designed the famed Teatro Fox Delicias (today a hotel), the Hotel Meliá (still in operation), the El Cometa Building (today headquarters of the Ponce Municipal Assembly, next to city hall), the San Lucas Hospital (on Guadalupe street) and the Dr. Pila Clinic (now an apartment building).
[13] In addition, and also surrounding plaza Las Delicias, Porrata-Doria designed the Forteza Building (previously occupied by the Bella Hess Stores and now home to the PUCPR-School of Architecture) and the Gonzalez Building, long-time home of Farmacias Gonzalez and today a mixed-commercial location.
He participated in the design and rebuilding of Teatro La Perla, the Ponce Public Library, and the Abraham Lincoln and José Celso Barbosa elementary schools.
During this time he also designed a church in Hato Rey, and the home residence of Antonio S. Luchetti, the director of the Authority.
This last one, commissioned by the government of Puerto Rico, caused so much public criticism that the home was sold without Luchetti ever living it.
During this second period in the private sector, he designed many luxurious homes, the González y Compañía building across from Parque de Bombas (first a department store, then a drugstore, and now occupied by the Pontifical Catholic University of Puerto Rico School of Architecture), the clinic of Dr. Fernández García and his last two churches.