Maximum casita size under Nevada AB 396 is set by each local jurisdiction’s code. The state law
removed the largest lot-size barriers but left specific square-footage limits to municipalities. The City of
Henderson currently caps detached ADUs at 1,200 square feet, which is one of the clearest published
thresholds in the valley. Other jurisdictions (City of Las Vegas, Clark County, North Las Vegas) have their
own maximums depending on the specific ordinance language adopted under AB 396. The most
accurate answer for your specific property requires checking your jurisdiction and any applicable HOA
architectural review committee. Kingdom & Co. confirms the size limits for your specific lot and
jurisdiction during the discovery phase before design work begins.