Sun Valley's permits go through the county
Sun Valley sits northeast of Reno, outside city limits, in unincorporated Washoe County — which means the same county rule applies here as in the rest of unincorporated Washoe: a roof repair under 100 square feet, or one still under its one-year warranty, is exempt from permitting; a full re-roof always needs one, issued as an EZ Permit for like-for-like replacement. The office to call is Washoe County Building, 1001 E Ninth Street, Reno, NV 89512, 775-328-2020.
What applies here, climate-wise
Sun Valley sits at valley-area elevation within the county's 4,500–5,000 foot band, below the 5,300-foot threshold where ice-barrier underlayment becomes mandatory — the same starting-point design values as the rest of the Truckee Meadows: a minimum 29 psf roof snow load and a 120 mph design wind speed. See the snow load & elevation guide for how those numbers shift at higher elevation elsewhere in the service area.
What to read next
The roof repair guide covers the sourced national repair-cost figures and what actually fails on roofs in this climate; the replacement cost guide has the five-source Reno cost table for a full re-roof decision.
Nearby: Spanish Springs roofing · Sparks roof repair · full service area.