Housing construction in Mexico is not limited to the development of new properties. For millions of families, enhancing their assets means adding a room, building a second floor, upgrading facilities, or adapting spaces to meet new needs. This transformation of existing homes represents a significant market for the construction materials industry and for self-built housing.

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According to the 2025 update on the "Housing Deficit" (Rezago Habitacional)—prepared by the Secretariat of Agrarian, Territorial, and Urban Development (Sedatu) and the National Housing Commission (Conavi)—Mexico has 39.6 million housing units, 8.33 million of which are considered to have a "housing deficit"—equivalent to 21% of the total.

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The scale of this market is also reflected in the significance of self-built housing. According to the National Housing Information and Indicators System (SNIIV), this model accounts for 62.8% of owner-occupied homes, while self-built projects represent 56.3% of the Gross Domestic Product (GDP) of the housing sector.