Washoe County, NV Accessory Structures: Tiny Homes (2026)
Tiny home rules in Washoe County, NV, covering tiny houses on wheels (THOWs), park model RVs, and tiny home on foundation builds, determine where they are legal and how they get permitted.
Key Facts
- Manufactured ADU age
- Built within 6 years
- Must be
- Permanently affixed, real property
- Size cap
- 1,500 sq ft (as detached ADU)
- Shed as mobile home
- Not allowed (HUD rules)
- Standalone tiny-home zone
- None (treated as ADU)
Summary
A manufactured or modular home built within 6 years of placement may serve as a detached ADU if permanently affixed and converted to real property. A shed or accessory structure cannot be a mobile/manufactured home.
A manufactured or modular home constructed within six (6) years of the date of its placement is permitted as a detached accessory dwelling unit, subject to the size and regulatory zone requirements in (d) above and the provisions of Article 312, Fabricated Housing, provided that the unit is permanently affixed to the property.
Official source re-checked September 7, 2026: no newer edition of the code had been published (publisher’s edition: Code of Ordinances: Supplement 20 Update 2).
Full Breakdown
Washoe County has no standalone tiny-home category; a tiny house is treated as an accessory dwelling or manufactured home. Under WCC 110.306.25(e), a manufactured or modular home constructed within six years of placement is permitted as a detached ADU if permanently affixed, its foundation masked, and it is converted to real property under Article 312 (Fabricated Housing) by final inspection. It must meet the same size and zone limits (Sec. 110.306.25(d): up to 1,500 sq ft). A detached accessory structure (e.g. shed) may not be comprised of a mobile or manufactured home due to federal HUD standards (Sec. 110.306.10(i)). Reno and Sparks set their own tiny-home standards inside city limits.
Violations & Fines
Unpermitted tiny homes or RVs used as dwellings are code violations under Article 910; long-term RV occupancy is separately restricted under Article 310 temporary-use rules.
Frequently Asked Questions
Can I live in a tiny home on wheels on my lot?
Can a shed be a manufactured home?
Sources & Official References
Other rules in Washoe County
Compare Washoe County to another location·View the Nevada accessory structures overview
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