CA Commercial Rent Increases: SB 1103, Escalation, Prop 13
Understand California commercial rent rules, including SB 1103 QCT termination/non-renewal notice requirements, escalation clauses, and Prop 13 impacts.
Legal Disclaimer
This content is for general informational and educational purposes only. It does not constitute legal advice and should not be relied upon as such. Laws change frequently — always verify current regulations and consult a licensed attorney in your jurisdiction for advice specific to your situation. Landager is a property management platform, not a law firm.Information last verified: May 2026.
California commercial rent increases are primarily governed by the lease agreement under the California Civil Code (effective since 1 January 1873, though enacted in 1872). However, SB 1103 (the Commercial Tenant Protection Act, effective January 1, 2025) introduced mandatory notice periods for rent increases and lease terminations affecting Qualified Commercial Tenants (QCTs). Additionally, Proposition 13 (California Constitution Article XIIIA) property tax framework creates indirect rent pressure through NNN expense pass-throughs. Disputes are adjudicated in the Superior Court of California.
No Rent Control for Commercial Properties
Official Law Citation: The rules and regulations outlined on this page are strictly configured under the California Civil Code § 1954.27 and SB 1103 (2024). Landlords must ensure their lease agreements directly adhere to these state codes.
California's Tenant Protection Act (AB 1482) - which caps residential rent increases at 5% + CPI - does not apply to commercial leases. Furthermore, Civil Code § 1954.27 (The Commercial Rent Control Act of 1987) explicitly prohibits any public entity from enacting or enforcing a system of rent control on commercial real property.
Landlords can raise commercial rents by any amount, at any frequency, as defined in the lease agreement, subject to the new notice requirements for QCTs.
SB 1103: New Notice Requirements for QCTs
Starting January 1, 2025, landlords must provide enhanced notice to Qualified Commercial Tenants for both rent increases and lease terminations.
Rent Increase Notices (Civil Code § 827)
For periodic tenancies (e.g., month-to-month), the notice required for a rent increase depends on the percentage:
Lease Termination Notices (Civil Code § 1946.1)
Landlords must provide enhanced notice before terminating a lease or refusing to renew for a QCT:
These requirements apply regardless of any conflicting clause in the lease for tenancies of unspecified duration.
Who Qualifies as a QCT?
- Microenterprises - 5 or fewer employees (including the owner)
- Restaurants - fewer than 10 employees
- Nonprofits - fewer than 20 employees
QCTs must self-certify their status in writing upon lease execution and annually.
Operating Cost Restrictions for QCTs (Civil Code § 1950.9)
Under Civil Code § 1950.9, landlords cannot charge a QCT for building operating costs unless they are allocated proportionately and the landlord provides written notice with supporting documentation at least annually (or as specified in the lease).
Common Escalation Structures
Fixed Annual Increases
A pre-set dollar amount or percentage per year. Common in multi-year leases.
CPI-Based Adjustments
Rent adjusts annually based on changes in the Consumer Price Index. Leases often include floor and ceiling provisions (e.g., minimum 2%, maximum 5%).
Fair Market Value (FMV) Resets
At option renewal periods, rent resets to current market rates. Disputes are typically resolved via appraisal or arbitration in accordance with lease terms.
NNN Expense Pass-Throughs
In NNN leases, the tenant's total cost increases when operating expenses rise, even if the base rent stays flat. Key categories:
- Property taxes - can spike upon reassessment (see Prop 13 below)
- Insurance premiums - rising across California
- CAM charges - maintenance/shared costs
Proposition 13 and Property Tax Pass-Throughs
Proposition 13 (1978), codified in Article XIIIA of the California Constitution, caps annual property tax increases at 2% per year based on assessed value. However, a change in ownership (sale) triggers reassessment to current market value, which can dramatically increase property taxes.
In NNN leases, this tax increase is passed through to the tenant. Practical implications:
Best practice: Tenants should negotiate Prop 13 protection clauses limiting their exposure to tax increases caused by a change in ownership.
Frequently Asked Questions
▶What are the California landlord-tenant laws every property owner should know?
California landlord-tenant law is governed primarily by Civil Code §1940–1954.06 and the Tenant Protection Act (AB 1482). Key requirements include a one-month security deposit limit (effective July 2024), statewide rent caps of 5% + CPI or 10% (whichever is lower), just-cause eviction protections for tenancies over 12 months, mandatory habitability standards, and extensive disclosure requirements. Non-compliance can result in statutory penalties and punitive damages.
Read the complete guide▶What is the California eviction process and how long does it take?
California distinguishes between at-fault and no-fault evictions. For unpaid rent, landlords serve a 3-Day Notice to Pay or Quit. For lease violations, a 3-Day Notice to Cure or Quit is required. No-fault evictions require 30 days notice for tenancies under one year, or 60 days for longer tenancies, plus relocation assistance equal to one month's rent under AB 1482. After notice expires, an Unlawful Detainer lawsuit is filed, and the full court process typically takes 5-8 weeks.
Read the complete guide▶What is the California security deposit limit in 2026?
As of July 1, 2024, California limits security deposits to one month's rent for all residential properties, regardless of whether the unit is furnished or unfurnished — eliminating the previous two-month limit. Landlords must return the deposit within 21 days of move-out with an itemized statement of deductions. Allowable deductions include unpaid rent, cleaning beyond normal wear and tear, and repair of tenant-caused damage.
Read the complete guide▶What are the California rent increase laws and caps for landlords?
Under AB 1482 (the Tenant Protection Act), most California residential properties are subject to annual rent caps of 5% plus the local Consumer Price Index (CPI), or 10%, whichever is lower. Landlords must provide 30 days written notice for increases of 10% or less, and 90 days for increases above 10%. Exemptions include properties built within the last 15 years, certain single-family homes, and owner-occupied duplexes.
Read the complete guide▶What is the grace period for late rent in California?
California does not mandate a statutory grace period for late rent — technically, rent is late the day after it is due. However, most leases include a 3-5 day contractual grace period. Late fees must be reasonable and reflect the landlord's actual costs from the delay. A 3-Day Notice to Pay or Quit cannot be served until rent is actually past due, and courts may reject excessive late fee provisions as unenforceable penalties.
Read the complete guide▶What disclosures must California landlords provide to tenants?
California requires extensive pre-lease disclosures including: lead-based paint warnings (pre-1978 buildings), Megan's Law sex offender database notice, bed bug history, mold hazards, proximity to former military ordnance locations, flood zone status, and any known environmental hazards. Landlords must also disclose the property's demolition or renovation history and provide contact information for the property owner or authorized agent.
Read the complete guide▶What are the California lease requirements for rental properties?
While oral leases are technically valid for terms under one year, California strongly favors written agreements. Required lease elements include rent amount and due date, security deposit terms, maintenance responsibilities, and rules regarding pets, smoking, and subletting. Lease terms must comply with AB 1482 just-cause eviction protections, and any waiver of tenant rights in the lease is void and unenforceable.
Read the complete guide▶What are California landlord maintenance obligations and habitability standards?
Under California's implied warranty of habitability, landlords must maintain properties in fit and livable condition. This includes working plumbing, heating, electrical systems, weatherproofing, clean common areas, functioning locks and windows, and pest control. If a landlord fails to make necessary repairs within 30 days of written notice, tenants may use the 'repair and deduct' remedy (up to one month's rent) or withhold rent entirely until conditions are corrected.
Read the complete guide📬 Get notified when these laws change
We'll email you when landlord-tenant laws update in No spam — only law changes.
