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Sonoma is a small city in the heart of Sonoma County wine country. While it is part of Sonoma County, renters living within the City of Sonoma are governed primarily by California state tenant protection laws rather than any city-specific rent control or just-cause eviction ordinance. The City of Sonoma has not enacted its own local rent stabilization measure.
California’s Tenant Protection Act of 2019 (AB 1482) provides the primary rent increase limitations and just-cause eviction protections for eligible Sonoma renters. Additional statewide laws govern security deposits, habitability, retaliation, and unlawful lockouts. Tenants should note that the Sonoma County Residential Tenancy Protections Ordinance (adopted September 2024) applies only to unincorporated county areas and does not extend to the City of Sonoma.
This guide summarizes the state protections that apply to most Sonoma renters, along with local organizations that can help with housing issues specific to the Sonoma Valley area.
The City of Sonoma has no local rent control or rent stabilization ordinance. Landlords in the city are not subject to any city-enacted rent increase limits beyond those imposed by California state law. The Sonoma County Residential Tenancy Protections Ordinance (Ord. 6496, adopted September 17, 2024) applies only to rental properties in the unincorporated areas of Sonoma County and does not cover properties within the city limits of Sonoma.
For eligible rental units, California’s AB 1482 (Civ. Code § 1947.12) serves as the effective rent cap. Units exempt from AB 1482 — including single-family homes where the tenant has received proper notice of the exemption, condos sold separately, and buildings constructed within the last 15 years — face no cap on rent increases under current law.
Rent Increase Limits (AB 1482): Under the California Tenant Protection Act of 2019 (Civ. Code § 1947.12), most landlords may not raise rent by more than 5% plus the local Consumer Price Index, up to a maximum of 10%, in any 12-month period. For 2025–2026, the applicable CPI adjustment in the Sonoma area results in a combined cap of approximately 7.7% to 8.8% depending on the applicable index. Landlords are also limited to two rent increases per year. Many unit types are exempt, including single-family homes with proper notice and buildings less than 15 years old.
Just Cause Eviction (AB 1482 / SB 567): Tenants who have occupied a covered unit for 12 months or more may only be evicted for a stated just cause under Civ. Code § 1946.2. “At-fault” causes include nonpayment of rent, lease violations, and criminal activity. “No-fault” causes (such as owner move-in or withdrawal from the rental market) require payment of one month’s rent in relocation assistance. SB 567, effective April 1, 2024, tightened these protections by strengthening owner-move-in requirements and increasing penalties for landlords who abuse no-fault grounds.
Security Deposits (AB 12): As of July 1, 2024 (AB 12), landlords may collect a maximum security deposit of one month’s rent for most residential tenancies. The landlord must return the deposit within 21 days after the tenant vacates, along with an itemized statement of any deductions (Civ. Code § 1950.5). Wrongful withholding of a deposit may expose the landlord to liability for twice the withheld amount.
Habitability: Landlords must maintain rental units in a habitable condition, including working plumbing, heating, weatherproofing, and freedom from vermin (Civ. Code §§ 1941.1, 1942). Tenants may pursue repair-and-deduct remedies or rent withholding in certain circumstances after providing proper notice.
Termination Notice: For month-to-month tenancies, landlords must give at least 30 days’ notice if the tenant has rented for less than one year, and at least 60 days’ notice if the tenant has rented for one year or more (Civ. Code § 1946.1).
Retaliation Prohibited: Landlords may not raise rent, reduce services, or attempt to evict a tenant in retaliation for complaining about habitability or exercising any legal right (Civ. Code § 1942.5).
No Unlawful Lockouts: Landlords may not change locks, remove doors or windows, or shut off utilities to force a tenant out. Such self-help eviction is prohibited by Civ. Code § 789.3 and may result in statutory damages of up to $100 per day.
Source-of-Income Discrimination: Landlords may not refuse to rent to tenants based on their source of income, including housing vouchers, under Gov. Code § 12955.
Under California law (Civ. Code § 1950.5), landlords in Sonoma may collect a security deposit of no more than one month’s rent for most unfurnished units, pursuant to AB 12 which took effect July 1, 2024. (Certain small landlords who own no more than two residential rental properties totaling no more than four dwelling units may still charge up to two months’ rent under a transitional provision, provided no tenant currently in the unit has a waiver.)
After the tenancy ends, the landlord must return the deposit — along with an itemized written statement of deductions — within 21 calendar days. Allowable deductions are limited to unpaid rent, cleaning costs to restore the unit to its condition at move-in (normal wear and tear excluded), and repair of tenant-caused damage beyond normal wear and tear.
If a landlord wrongfully withholds all or part of the deposit, the tenant may sue in small claims court. A court may award up to twice the amount wrongfully withheld as a penalty, in addition to the actual deposit amount, if the withholding was found to be in bad faith (Civ. Code § 1950.5(l)).
Just Cause Requirement: Most Sonoma tenants who have lived in a covered rental unit for at least 12 months are protected by the just-cause eviction provisions of AB 1482 (Civ. Code § 1946.2). Landlords must state a valid reason for termination. At-fault just causes include: nonpayment of rent, breach of a material lease term (after a cure period), criminal activity on the premises, and refusal to allow lawful entry. No-fault just causes include: owner or family member move-in, substantial remodeling, and withdrawal of the unit from the rental market.
Relocation Assistance: For no-fault evictions, the landlord must pay one month’s rent in relocation assistance, or waive the last month’s rent (Civ. Code § 1946.2(d)). SB 567 (effective April 1, 2024) added requirements that landlords who use owner move-in as a basis for eviction must actually occupy the unit for at least 12 consecutive months, and increased the civil penalty for violations to three times the tenant’s monthly rent plus attorney fees.
Notice Periods: The landlord must serve a proper written notice before filing an eviction lawsuit. For nonpayment of rent, the minimum notice is 3 days (pay or quit). For lease violations, the notice period is 3 days to cure or quit. For no-fault evictions, the notice period is 30 days (tenancy under 1 year) or 60 days (tenancy 1 year or more) under Civ. Code § 1946.1.
Unlawful Detainer Process: If the tenant does not comply with a proper notice, the landlord may file an unlawful detainer (eviction) lawsuit in Sonoma County Superior Court. The tenant has the right to respond within 5 business days of service and to request a court hearing. A landlord cannot remove a tenant without a court judgment and a lockout carried out by the Sonoma County Sheriff.
No Self-Help Evictions: Removing a tenant by changing locks, removing belongings, or shutting off utilities without a court order is illegal under Civ. Code § 789.3. Tenants subjected to such conduct may seek emergency injunctive relief and statutory damages.
This article is for general informational purposes only and does not constitute legal advice. Tenant protection laws change frequently; always verify current statutes and local rules with a licensed California attorney or a qualified tenant rights organization before taking action. RentCheckMe.com is not a law firm and does not provide legal representation.
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