Completed earlier this year, the pair of similar homes each have four bedrooms and five bathrooms. They are located on a steep site in the upscale Jardines del Pedregal area of Mexico City that was originally designed by Luis Barragán in the 1940s.
The area is named after the rocky landscape that characterises its building lots. It is sited atop a lava field, a feature that Barragán sought to emphasise in his original design for the area.
"He had a vision of a modernist residential development where the architecture would establish a clear dialogue in harmony with the natural landscape and the dramatic volcanic formations among other ideals," explained HEMAA.
Upon entering from the front gate, visitors find themselves in a verdant shared garden that fronts the two houses.
Because of the site's pronounced elevation change, the home's main level is up a flight of exterior stairs that leads to a full-width terrace fronting each house.
"Access to the house is guided by a staircase that highlights the character of the main door and is surrounded by flower boxes and plants on the facades," said HEMAA.
"One of the main challenges was adapting a vast programme for two big families whilst integrating the architecture to the natural topography and blending in with the landscape."