Yes, in most Las Vegas valley market segments. A well-built in-law suite or casita reliably adds property value because the local market has a long-standing preference for homes with separate quarters. Specific value-add varies by neighborhood, finish level, and size, but a 500 to 1,200 square foot casita on a luxury lot frequently adds a six-figure premium at resale. The bigger value comes from use during ownership: aging-parent housing, guest accommodations, returning adult children, and home office or studio use all add real lived value beyond eventual resale. Kingdom & Co. designs casitas for the use case first, with resale value as a downstream benefit rather than the primary goal.