ADU rules in Reno, NV — also called accessory dwelling unit regulations or granny flat ordinances — cover setbacks, owner-occupancy, parking, and permit requirements.
Reno allows Accessory Dwelling Units on most single-family lots under RMC Title 18 after 2021 revisions. Detached ADUs up to 1200 sq ft and attached/internal ADUs up to 50 percent of the primary dwelling are permitted with building permits.
Reno expanded ADU allowances to help address the Truckee Meadows housing shortage. Eligible zones include Single Family Residential (SF) and most mixed-use zones. Setbacks follow the underlying zone (typically 5 ft side, 20 ft rear). One additional off-street parking space is required unless within 1/2 mile of frequent transit. Short-term rental use of ADUs requires separate STR permitting. Owner-occupancy of either the primary or accessory unit is required. Impact fees apply but are lower than for new single-family homes.
Unpermitted ADU: stop work, fine up to 1000 dollars, removal or permit-to-keep process. STR violation in ADU: 1000 dollars per occurrence.
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See how Reno's adu rules rules stack up against other locations.
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