Lyon County, NV Accessory Structures: Shed & Carport Rules (2026)

Lyon County Code § 15.335.03(A)(2) splits accessory building standards by lot size. On lots under two acres, the combined footprint of every accessory building on the parcel cannot exceed 30 percent of the total lot area, and all required setbacks must still be maintained. An accessory building cannot sit closer to the adjoining road than the principal structure, though a double-frontage lot may place the accessory building to the rear of the house as long as the principal setback is held along the street-facing property line.

Height sets the setback tier: a shed or garage up to 15 feet tall only has to meet the principal structure's front setback, with side and rear setbacks no less than five feet, while anything taller than 15 feet must meet the full principal-building setbacks listed in Chapters 310 through 314 for the parcel's zoning district. Lots of two acres or more follow the same 30 percent coverage cap and the same 15-foot height break for setbacks, but gain an added carve-out: on parcels of five acres or larger, an accessory building may sit as close as 100 feet to a road instead of matching the house's setback.

Every accessory building, regardless of lot size, is also subject to the dimensional, impermeable-surface and structural coverage limits in Chapters 310 through 316, and the Community Development Department checks these numbers during the building permit review before a shed, garage or barn goes up.