Casa-Estudio Juan O’Gorman (1933). The Juan O’Gorman Residence and studio in San Angel, Mexico City. He built and lived in the house, moved out and eventually moved back in. He would end up taking his own life on the property.
Between 1928 and 1932, he built five houses. This includes the studio for Diego Rivera and Frida Kahlo, in the same neighborhood of San Angel. He built the first "Functionalist" modern house in Mexico in 1928, for his father, Cecil. It's next to Frida and Diego buildings. You can see those, here. O'Gorman's own house is just a three minute walk away. This was part of O'Gorman's Le Corbusier / International Style phase, which was popularized by the teachings of José Villagrán García in Mexico (whom O'Gorman worked for).
O'Gorman felt that Functionalism could help solve Mexico's housing problem. He worked on a number of prototypes in this style, like this apartment building for journalists.

This is O'Gorman's first petro-mural, referenced in the post on the
Nanwarrow house.
Mexico!
This O'Gorman painting came with the house.
This room was added later.
Second floor fireplace
The square wall lamp is original.
O'Gorman stopped practicing architecture from 1934 to 1948.
O'Gorman built a second home, Casa Cueva, on San Jerónimo in Pedregal. It was a protest against his earlier Functional International Style. It was built from 1948 to 1954.
O'Gorman criticized his earlier "box-like architecture". He said: “[…] a conscious effort has been made to create this house, both as a whole and in its details, as a plastic and original work. No style has been copied in this work, nor have any of the tired architectural clichés of the now boring, commercial, and expensive ‘modern’ architecture been applied.” He added that the design of this house was the antithesis of the so-called International Style and of everything that modern architecture, which was imported, meant in Mexico; instead, O'Gorman followed the principles of organic architecture, influenced by Wright, but without copying him, as it is an original design created by him.
This original architecture corresponded to the geography and history of Mexico, as it was designed based on the specific characteristics of the Pedregal soil, respecting the context. From this new perspective on architectural production, the speaker stated that “buildings constructed in cities by technicians and within the necessary conditions of specialized labor, using engineering principles applied to the construction of dwellings, will not constitute architecture that can be considered a work of art.” He also acknowledged that this was not the best solution for a house.
Source: Modernization and nationalism in Mexican architecture in five voices: 1925–1980
In 1969 he had to sell the San Jerónimo house, which he considered his masterpiece. The sculptor who purchased it destroyed it a few months later. O'Gorman was heartbroken as he moved back to his San Angel house. In 1982, he died by suicide in the backyard.