Reno charges development impact fees on new ADUs under Nevada NRS Chapter 278B. Sewer connection fees apply where a new lateral or capacity allocation is required. Truckee Meadows Water Authority charges separate water connection fees for any new meter. Building permit and plan review fees are based on construction valuation.
Nevada development impact fees are authorized under NRS Chapter 278B and must be proportional to the actual demand created by new development. Reno's impact fee schedule covers sewer, parks, and fire/public safety. ADUs that share existing water and sewer service with the primary dwelling typically avoid most capacity charges; only ADUs that require a new TMWA meter or a new sewer lateral pay full connection fees. Truckee Meadows Water Authority (TMWA) bills water connection fees separately based on meter size. Reno sewer connection fees vary by basin. Total ADU impact and connection fees in Reno typically run $5,000-$15,000 depending on lot location, sewer basin, and whether new utility services are needed. Building permit and plan review fees scale with construction valuation, commonly adding $1,000-$2,500 to a typical detached ADU.
Failure to pay impact fees before permit issuance prevents construction. Reno may file liens for unpaid fees. Building without paying impact fees through unpermitted construction triggers double fees plus civil penalties under RMC Titles 14 and 18.
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See how Reno's adu impact fees rules stack up against other locations.
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