Accessory Dwelling Unit (ADU) Permit in Sparks, Nevada

Sparks requires an accessory dwelling unit (adu) permit for: ADU may be constructed as a new building, adapted from an existing accessory structure, or carved from part of the main structure; One ADU maximum per lot; ADU not allowed on a nonconforming lot; Located in the established rear yard, at least 10 feet from the rear lot line; Must conform to side yard setbacks; Must be architecturally consistent with the main structure; Maximum gross floor area: 1,000 sq ft or 50% of main structure's floor area, whichever is less; maximum 2 bedrooms; Maximum height: 2 stories or height of principal dwelling unit, whichever is less; ADU shall not obtain a separate address; ADU shall utilize the same water, electric, and gas meters as the principal dwelling unit; Applications submitted via ONE Regional Permitting portal; NRS 278.257 (eff. July 1, 2026): any local ordinance requirement that the owner must occupy the primary residence as a condition of renting the ADU is superseded — ADU may be used as rental housing. If your project isn't listed, confirm with City of Sparks Community Development — Building Permits at (775) 353-2306 before starting work.

In Sparks, the published Building Permit — valuation-based is: Varies — valuation-based per the Sparks tiered permit fee table (same as new residential construction). Additional published fees: Re-inspection Fee — $100.00 per hour. These are the jurisdiction's own published figures — see the fee schedule table and source citations on this page.

Plan review for an accessory dwelling unit (adu) permit in Sparks typically runs 10–30 business days. This is an estimate, not a published figure — confirm current review times with City of Sparks Community Development — Building Permits at (775) 353-2306.

You'll need: Building Permit Application (via aca-prod.accela.com/ONE/); Construction Drawings. Depending on your project, Sparks may also ask for: Owner Builder Affidavit (if applicable). See the required-documents checklist on this page for details on each.

Sparks requires 4 inspection(s) for an accessory dwelling unit (adu) permit, in order: Foundation, Framing, MEP Rough-In, Final. Schedule each through City of Sparks Community Development — Building Permits ((775) 353-2306).

Apply through City of Sparks Community Development — Building Permits at 431 Prater Way, Sparks, NV 89431. Phone: (775) 353-2306, email: buildingpermits@sparksnv.gov. Office hours: Mon–Fri 9:00 AM – 4:00 PM (closed holidays). Official information: https://www.cityofsparks.us/your_government/departments/community_development/building_permits/index.php.

Yes. Sparks Municipal Code Section 20.03.003 authorizes ADUs in residential zoning districts. One ADU per lot is allowed, subject to rear yard setback (10 ft minimum), size limits (1,000 sq ft or 50% of main structure, whichever is less), and 2-bedroom maximum. As of July 1, 2026, NRS 278.257 prohibits Sparks from restricting the ADU's use as rental housing.

Per SMC 20.03.003, an ADU may not exceed 1,000 square feet gross floor area or 50% of the main structure's floor area, whichever is less. It may not have more than 2 bedrooms or exceed 2 stories or the height of the principal dwelling.