Riverside County Ord. 348 hillside-development standards limit grading, building height, and lot coverage on slopes above 10 percent, addressing wildfire risk, erosion, and viewshed protection in mountain communities.
Ord. 348 sets density and design controls based on natural slope, calculated through topographic analysis. Slopes from 10 to 25 percent face reduced lot coverage and required slope-density formulas. Slopes above 25 percent typically require discretionary review and may be designated open space. Mountain communities such as Idyllwild, Pine Cove, and Anza Valley apply additional fire-safety standards including ignition-resistant materials, secondary access, and water flow. Grading exceeding 1,000 cubic yards or 50 vertical feet of cut requires plot-plan or conditional-use approval.
Unpermitted grading triggers stop-work orders, restoration requirements, daily code-compliance penalties, and disqualification from future entitlement on the parcel.
Other ordinances people look up for this city. Green dot = verified primary-source excerpt.
Riverside County, CA
On-road motor vehicle noise in unincorporated Riverside County is governed mainly by the California Vehicle Code, which the county's own Noise Element acknow...
Riverside County, CA
Under County Ordinance 413, only the Director of Transportation may paint curbs to mark parking rules in the unincorporated county. Red means no stopping, ye...
Riverside County, CA
County Ordinance 413, Section 1.9, lets the Director of Transportation establish loading and passenger loading zones marked by colored curbs. Yellow zones al...
Riverside County, CA
Movement of oversize or overweight vehicles on unincorporated Riverside County roads requires a permit from the road commissioner under County Code Chapter 1...
Riverside County, CA
Common fencing materials - wood, vinyl, masonry block, and metal - are permitted in unincorporated Riverside County, subject only to Ordinance No. 348 Sectio...
Riverside County, CA
California's SB 1383 requires diverting organic waste from landfills. In unincorporated Riverside County, where green-cart organics collection is offered, re...
See how Mead Valley's hillside overlay rules rules stack up against other locations.
Help us keep this page accurate. If you notice an error or outdated information, let us know.