<span style="font-family: Theinhardt, -apple-system, BlinkMacSystemFont, &quot;Segoe UI&quot;, Roboto, Oxygen-Sans, Ubuntu, Cantarell, &quot;Helvetica Neue&quot;, sans-serif;">Mexico-based architecture office S-AR created Casa Caja, a low-cost concrete block house that's designed to be built by its owners, with support from a non-profit social housing project. "The subject of the non-profit organization is to make the benefits of architecture available for those that can't pay for it with money, but can work or construct their own houses or buildings, Photo 8 of 8 in 7 Affordable Prefab Homes and Other Alternative, Inexpensive Home Options

7 Affordable Prefab Homes and Other Alternative, Inexpensive Home Options

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<span style="font-family: Theinhardt, -apple-system, BlinkMacSystemFont, &quot;Segoe UI&quot;, Roboto, Oxygen-Sans, Ubuntu, Cantarell, &quot;Helvetica Neue&quot;, sans-serif;">Mexico-based architecture office S-AR created Casa Caja, a low-cost concrete block house that's designed to be built by its owners, with support from a non-profit social housing project. "The subject of the non-profit organization is to make the benefits of architecture available for those that can't pay for it with money, but can work or construct their own houses or buildings,