Multifamily and Duplex Properties for Sale in Navarro: Zoning and Rent Rules

What multifamily in Navarro looks like

In Navarro, "multifamily" rarely means an apartment building. The County’s General Plan Chapter 6 describes the town as residential with limited commercial uses, and LAFCo’s 2015 AVCSD sphere update notes, quoting the plan, that much of the land in and around Navarro belongs to a large industrial timber company. Rental property here is usually a house with an ADU or JADU, two homes or cabins on a rural parcel, a mobile home, or employee housing on a ranch or vineyard. These deals typically use 2-4 unit financing or a rural lender; for larger apartment buildings elsewhere in the county, see apartment building loans.

Where the zoning allows it

Navarro is unincorporated and covered by the County’s Inland Zoning Code. With no water or sewer district, density is set at the code’s most restrictive level.

Sources: TPZ, A-G, R-C standards, C-1, C-2. We did not verify parcel zoning in Navarro; order a County Letter of Zoning.

In TPZ, dwelling groups need an administrative permit and cluster developments need a use permit, and the County must find any use-permit project compatible with timber growing before approving it. That makes TPZ a poor place to plan multiple rentals. The General Plan’s CP-AV-1 points new development toward the four Anderson Valley towns and their immediate surroundings, and CP-AV-19 keeps agricultural and resource zoning throughout the valley.

ADUs. The County’s ADU page says most parcels with a single-family home can add an ADU and a JADU, sometimes also a family care unit or guest house. Detached ADUs can be up to 1,200 square feet, JADUs up to 500, new ADUs need solar, and no ADU may sit on the leach field or replacement area. See our ADU investment guide.

SB 9. Timber and agricultural parcels around Navarro are unlikely to meet the state’s urban-area test for lot splits. Confirm with Planning; our SB 9 guide explains the requirements.

Rent rules: state law only

The Attorney General’s rent cap page, updated July 16, 2026, lists no local rent ordinance in Mendocino County. Under AB 1482, covered units are capped at 7.7% for increases starting August 1, 2025 and 8.6% for increases starting August 1, 2026 through July 31, 2027. A single-family home or ADU owned by an individual may be exempt with the required notice in the lease. Read our AB 1482 guide and just cause eviction guide.

Navarro rental property rules

We found no Navarro-specific rental rules. County rules that apply:

• Short stays. Rentals of 30 days or less owe transient occupancy tax and a Business Improvement District assessment through the Treasurer-Tax Collector. Highway 128 coast traffic brings visitor demand.
• Employee housing. Employee housing is a permitted use in both TPZ and A-G. If rent is tied to a job, state employee housing rules may apply.
• Permits. Cabins and second homes on rural parcels are often unpermitted; confirm each unit’s permit history with County Planning and Building Services.

Wells, septic, the river and fire

No public utilities. LAFCo’s 2014 Anderson Valley review says the community services district provides no water or wastewater service, and most developed parcels use private wells or private community water systems and septic. Action CP-AV-11.1 supports small, decentralized water and wastewater systems for Navarro and the other towns, but none has been built.

Navarro River. The North Coast Regional Water Quality Control Board’s Navarro River TMDL page says the river is listed as impaired for excess sediment and high temperature, with EPA TMDLs from December 2000. New roads, pads and septic sites on slopes near the river deserve careful engineering, and the General Plan (CP-AV-21) limits hillside development with excessive grading.

Fire. The Anderson Valley CSD has stations at Navarro and Rancho Navarro. CP-AV-13 supports community hydrant systems in the four towns, which do not exist yet, so plan for on-site water storage and price insurance early. For three or more units with elevated decks, see SB 721 balcony inspections.

Underwriting a Navarro multifamily purchase

1. Confirm the zoning and whether TPZ status limits added homes.
2. Verify every dwelling’s permits.
3. Test each well and inspect each septic system.
4. Check road access, maintenance agreements and any nearby timber operations.
5. Model AB 1482 where it applies, and collect estoppel certificates.
6. Rebuild expenses with reassessed taxes and insurance in our rental property analysis.

Questions people ask

Sources & notes

1. Mendocino County General Plan Chapter 6 (2009)
2. Mendocino LAFCo, Anderson Valley CSD MSR (2014)
3. Mendocino LAFCo, AVCSD Sphere of Influence (2015)
4. North Coast Regional Water Quality Control Board, Navarro River TMDL
5. Ch. 20.068 TPZ Timberland Production
6. Ch. 20.052 A-G Agricultural
7. R-C standards summary
8. Ch. 20.088 C-1 Limited Commercial
9. Ch. 20.092 C-2 General Commercial
10. Mendocino County ADU page
11. Mendocino County TOT payment page
12. California Attorney General, rent caps (updated July 16, 2026)

General information, not legal or tax advice. Last reviewed October 2026 by Matthew Martinez.

Related: Navarro real estate guide · Commercial real estate in Navarro · Multifamily investing guide · Investor services