Inyo County Unincorporated, California Zoning Map

The NGNAUO designation on several commercial and agricultural zones reflects the Owens Valley's unique water rights environment, where the City of Los Angeles controls large portions of surface and groundwater through historic acquisitions. Development on NGNAUO-designated parcels may require a groundwater neutrality assessment to demonstrate that the proposed use will not increase net groundwater consumption beyond a defined baseline. Developers and investors must understand this overlay as a distinctive constraint specific to the Owens Valley that has no equivalent elsewhere in California.

The C2 zone reflects the county's dependence on highway-oriented tourism - with US-395 as the primary travel corridor through the Owens Valley connecting Los Angeles to Mammoth Lakes, Mono Lake, and Yosemite. Gas stations, motels, restaurants, and outdoor equipment outfitters along US-395 are the economic backbone of small communities like Lone Pine, Independence, and Big Pine. The multiple minimum-acreage variants accommodate everything from small service station parcels to large highway commercial nodes.

C5 Commercial Recreation at 693 acres across its variants is designed for campgrounds, guest ranches, resort lodges, pack stations, climbing guide services, and other outdoor recreation businesses that require significant land area to operate. The 10-acre and 60-acre minimum variants accommodate resort-scale hospitality projects. Given the proximity to Death Valley National Park, Alabama Hills, and Eastern Sierra climbing and skiing areas, C5 sites near recreation hubs carry strong demand from outdoor hospitality operators.

The City of Los Angeles Department of Water and Power owns approximately 95% of the privately transferable land in the Owens Valley through a century of water rights acquisitions. This leaves very limited private land available for development, and LADWP as a major landowner influences the county's overall development pattern. Private parcels in unincorporated Inyo County are relatively scarce and often carry LADWP-adjacent ownership considerations, grazing leases, or water rights encumbrances that must be evaluated in due diligence.

The D overlay applies to certain C1, C2, C3, and C4 zones in gateway communities and scenic corridors - requiring projects to go through an architectural design review board for approval of exterior design, materials, signage, and site layout. In a county where visual character, dark skies, and rural aesthetics are major tourism assets, design review protects the character of communities like Lone Pine (gateway to Whitney Portal) and Bishop. Applicants in D-overlay zones should budget extra time and design fees for the review process.