Casitas reliably add value to a Las Vegas valley property because the local market has a long-established preference for homes with separate quarters (driven by the city’s tourism economy, family visiting patterns, and now the multigenerational and AB 396 trends). Exact valuation depends on the casita’s size, finish level, and integration with the primary residence. A well-built 800 to 1,200 square foot casita on a larger lot can add a six-figure premium to the property at resale, though the specific number varies by neighborhood and finish level. The bigger point: a casita pays back through use during your ownership (rental income is not an angle Kingdom & Co. promotes, but multigenerational living, guest accommodations, and home office use all add real lived value), not just through eventual resale.