ADU Pass
Mineral County
ADU Pass helps homeowners in Mineral County, Nevada navigate the permit paperwork for building an accessory dwelling unit. We cover 4 cities and 4 ZIP codes in this county.
Map
County ADU details
County ADU ordinance
Mineral County does not maintain a standalone ADU ordinance. Accessory dwelling units fall under the general residential zoning provisions; in most residential and rural districts a second dwelling unit is permitted as a conditional use subject to acreage, septic, and water-rights review. Nevada has no statewide ADU preemption, so all ADU policy is local.
County assessor
Assessment policy: Nevada assesses real property at 35% of taxable value (NRS 361.225). When an ADU is added, the assessor adds the new improvement's taxable value (replacement cost less straight-line depreciation per NRS 361.227) to the parcel; the existing primary dwelling is not reassessed. Nevada's tax-cap statutes (NRS 361.4722-361.4724) limit annual property-tax bill increases to 3% on owner-occupied primary residences and up to 8% on other property, blunting the year-one bill impact of new ADU value.
County overlays (4)
- wui-fire-zone — Nevada has no statewide WUI building code; local enforcement is discretionary. Mineral County's wildfire risk is moderate compared to forested western Nevada counties.
- flood-zone — FEMA FIRM panels for Mineral County (Community ID 320019) should be consulted at the parcel level. ADUs in SFHAs must meet base flood elevation requirements.
- other — Applicants for any habitable structure (including ADUs) on parcels within the ESQD buffer should consult Mineral County Planning early; the county coordinates with the Army Depot's safety office on siting reviews.
- other — Non-tribal members seeking to build on tribal land typically cannot do so; tribal members and lessees follow tribal building codes and BIA realty processes.
Known county issues (5)
- policy-review — Outcomes depend on case-by-case discretionary review. Predictability is lower than in counties with an explicit ADU ordinance.
- staffing-shortage — Slower review cycles, no remote submittal option, and limited ability to track permit status remotely; applicants outside Hawthorne must travel or rely on mail.
- other — Some otherwise-buildable infill parcels in and around Hawthorne cannot accept an ADU without Army Depot safety clearance; applicants should confirm ESQD status before committing to a project.
- other — Misdirected permit applications waste time; non-tribal members cannot directly apply for ADU permits on reservation land. Cross-jurisdictional projects (e.g., near reservation boundary) require coordinated review.
- other — Water-rights review at the state level can delay or prevent ADU projects on parcels lacking adequate water entitlements, independent of any county zoning approval.
Nevada state — ADU law and programs
State financing programs
Nevada Housing Division (NHD), under the Department of Business and Industry, does not operate an ADU-specific loan or grant product as of 2026-04-26. NHD's primary homeowner-facing program is Home Is Possible, providing first-time and qualifying homebuyers in Clark and Washoe counties up to 4% of the loan amount as a non-repayable grant for down payment and closing costs, paired with a 30-year fixed-rate first mortgage. The Home Is Possible For Heroes overlay serves teachers, military, first responders, and healthcare workers. NHD also issued $283.3 million of 2024 tax-exempt bonding authority for affordable-housing development (multi-family); separately, the Nevada Affordable Housing Assistance Corporation (NAHAC) administers federal Hardest Hit Fund and Homeowner Assistance Fund programs for delinquency relief. None of these is ADU-specific; ADU construction can be financed only as part of a qualifying primary-residence purchase or refinance.
Federal (United States) — ADU-relevant rules and programs
Federal ADU law
The United States has no federal statute that directly regulates accessory dwelling unit entitlement or design. Land-use authority over ADUs resides with states and local governments under the traditional police power. Federal engagement is limited to financing (Fannie/Freddie/FHA/VA/USDA), flood insurance (FEMA/NFIP), and discretionary housing programs (HUD), which are recorded in sibling sections of this file.
Federal financing programs
Federal housing-finance agencies and GSEs set nationwide underwriting rules that govern whether an ADU can be financed, appraised, and counted toward mortgage qualifying income. The relevant actors are Fannie Mae, Freddie Mac, FHA (HUD), VA, and USDA Rural Development.
Federal tax credits
There is no ADU-specific federal tax credit. ADUs may incidentally qualify for existing federal energy-efficiency and clean-energy tax credits when the ADU construction includes qualifying measures.
Federal housing programs
HUD administers several discretionary programs that can fund ADU-related activity at the grantee's election, but none is an ADU-specific program.