How Does AB 1482 Evaluate Each Building I Own?

The California Tenant Protection Act of 2019, commonly called AB 1482, is codified at Civil Code Sections 1947.12 (rent cap) and 1946.2 (just cause eviction). The law does not recognize a landlord’s portfolio as a unit. It evaluates each building independently, looking at three variables for each property:

• Age: Is the building covered or still within the 15-year new-construction exemption window?
• Location: Which Bureau of Labor Statistics metropolitan area governs the CPI calculation for that building?
• Municipal overlay: Does the city have a stricter local rent ordinance that supersedes the state cap?

The rent cap formula under Civil Code Section 1947.12(a)(1) is the lower of: (a) 5% plus the regional Consumer Price Index, or (b) 10% total. The regional CPI is defined as the April-to-April change in the CPI for All Urban Consumers for the metropolitan area in which the property is located, as published by the BLS (BLS, 2025). There is a second component to AB 1482 that portfolio owners often overlook: the law also imposes just cause eviction requirements on covered units once a tenant has lived in the property for 12 months. That means a covered building is not only subject to a rent ceiling but also restricts how and when you can remove a non-paying or problem tenant. These two protections travel together. Understanding which buildings in your portfolio are covered by both is the first step in compliance.

The 15-Year Rolling Coverage Trigger, Building by Building

AB 1482 exempts new construction for its first 15 years from the date of the initial certificate of occupancy (Civil Code Section 1947.12(d)). This exemption window is rolling, not fixed. Every year, some buildings age out of the exemption and become covered for the first time. Every year, newly completed buildings enter the exemption window.

For a portfolio owner, this means the coverage status of your buildings is not static. A building you bought a decade ago may have just crossed the 15-year threshold. A building you thought was still exempt may have become covered since you last checked.

Pull the certificate of occupancy date for each building in your portfolio from county assessor records. Do not rely on the year you purchased the property or the year it was listed on the market. The CO date from the issuing municipality is the only date that matters for the exemption calculation.

Which CPI Region Applies to My Buildings in OC or IE?

The most common mistake multi-building owners make is applying a single rent increase percentage across all of their properties regardless of location. AB 1482 does not allow that. The CPI used in the formula must match the BLS metropolitan statistical area where each building sits. In Southern California, two distinct MSAs are relevant:

• Los Angeles-Long Beach-Anaheim: This MSA covers Los Angeles County and Orange County. Buildings in Irvine, Anaheim, Huntington Beach, Costa Mesa, Santa Ana, and all other OC cities fall under this CPI.
• Riverside-San Bernardino-Ontario: This MSA covers Riverside County and San Bernardino County. Buildings in Redlands, Fontana, Ontario, Rancho Cucamonga, Riverside, Temecula, Murrieta, and surrounding IE cities fall under this CPI.

As of April 2025, the BLS reported the following 12-month CPI changes for these two regions (BLS, April 2025):

The BLS publishes new CPI figures each April. The cap for any given year is set by the most recent April CPI release before the increase takes effect (BLS, April 2025). This means you need to update your compliance tracker each spring with new figures for each region where you hold property. Call (714) 899-2200

What Happens When I Own Buildings in Both OC and IE?

TrueDoor works with many landlords who hold properties in both Orange County and the Inland Empire. This is a common portfolio pattern: an investor might own a 12-unit in Irvine acquired ten years ago and a 20-unit in Redlands purchased more recently, or a fourplex in Huntington Beach alongside a small apartment building in Murrieta.

When you own in both regions, you are not running one compliance problem. You are running two simultaneously, with different CPI inputs producing different ceilings. The practical risk is straightforward: if you apply a single rent increase percentage to every building at the same time, you will very likely exceed the cap for at least one region.

The unit of compliance under AB 1482 is the individual dwelling unit within each building. A 15-unit building with 15 overcharges is 15 separate violations. The law does not aggregate them into a single portfolio-level dispute. Each tenant has an individual right to recover, and each recovery is calculated against what that tenant’s unit was actually overcharged.

There is a secondary issue for mixed-region portfolios: the just cause eviction rules also apply per building and per tenant. A tenant in a covered Irvine building who has been in residence for 12 months is protected by AB 1482 just cause provisions. A tenant in an exempt new-construction Murrieta building is not covered, regardless of how long they have lived there. Treating both tenants the same way on eviction notice procedures creates a different but equally serious exposure.

Do City Ordinances Like Santa Ana’s Override the State Cap?

AB 1482 is a state floor, not a state ceiling. Cities in California are permitted to enact local rent ordinances that are more protective of tenants than state law. When a local ordinance is stricter, the local ordinance controls for properties in that city. The state cap is irrelevant for those buildings.

In TrueDoor’s service territory, the most significant example is Santa Ana:

Santa Ana Tenant Protection Ordinance (TPO)

Santa Ana enacted its Tenant Protection Ordinance (Santa Ana Municipal Code, 2022) with terms that are materially stricter than AB 1482:

• Rent cap: 3% annually (vs roughly 8% under AB 1482 for OC in 2025)
• Coverage trigger: Buildings 10 or more years old (vs 15 years under AB 1482)
• Just cause trigger: After 30 days of tenancy (vs 12 months under AB 1482)
• Relocation assistance: 1 month’s rent for no-fault terminations

If you own a 1990-built 8-unit building in Santa Ana and also a 1985-built 8-unit building in Irvine, the Santa Ana building operates under a 3% cap while the Irvine building operates under the state 8.0% cap. These are not interchangeable. You cannot give Santa Ana tenants an 8% increase just because your Irvine property qualifies for that amount.

“California has become increasingly tenant-friendly and a little bit anti-landlord.” | Kyle Thompson, Owner and Co-Founder, TrueDoor Property Management

Which of My Buildings Are Exempt From AB 1482?

Not every property in a landlord’s portfolio is automatically covered by AB 1482. Several categories of units remain exempt, and for a diversified portfolio that includes a mix of asset types, recognizing these exemptions matters for tracking purposes and for rent-setting decisions at turnover.

The SFR and Condo Notice Requirement

Single-family homes and condominiums are exempt from the AB 1482 rent cap only if the landlord serves the required written notice before or at the time the lease is signed (Civil Code Section 1947.12(d)). The notice must include specific statutory language. Without it, the property is treated as a covered unit regardless of its type.

For a portfolio owner who holds a mix of apartment buildings and scattered SFRs, this creates an administrative obligation: confirm that the SFR/condo notice is in every current lease for those units. If it is missing from an existing lease, the SFR loses its exemption for that tenancy. A missing notice is not just a gap in your records; it is a substantive change in your legal position on rent increases for that unit.

For a complete breakdown of which California rental properties are exempt from AB 1482 and what the exemption notice must say, see our companion guide: What Properties Are Exempt from AB 1482 in California?

How Do I Build a Multi-Property AB 1482 Compliance Tracker?

The practical problem with AB 1482 compliance across a portfolio is not legal complexity. The statute is specific about what it requires. The practical problem is that most self-managing landlords track rent increases in spreadsheets, in property management software not designed for California law, or in their heads. None of these are reliable at scale.

A functioning multi-property tracker needs the following columns for each unit in each building:

• 1
  List every building with its address, APN, and certificate of occupancy date.

  Pull each building’s initial CO date from county assessor or city building department records. Do not use the listing date, purchase date, or last renovation date. The initial CO date from the first certificate issued for the structure is the legal trigger for the 15-year exemption window.

• 2
  Classify each building as covered, exempt, or city-overlay restricted.

  Apply the 15-year rule to each CO date. Check each city’s current municipal code for local ordinances. A building in Santa Ana that might appear covered by state law at 8.0% is actually subject to the 3.0% TPO cap. The classification changes every year as buildings age into or out of the exemption window, so this column needs an annual review date.

• 3
  Assign the correct CPI region to each covered building.

  Orange County properties use the LA-Long Beach-Anaheim MSA CPI. Inland Empire properties use the Riverside-San Bernardino-Ontario MSA CPI. Do not average these or use a statewide figure. The BLS publishes regional CPI data each April at bls.gov/regions/western.

• 4
  Record every unit’s current rent, last increase date, and increase amount.

  AB 1482 measures the 12-month rolling window ending on the date the new increase takes effect. All increases within any rolling 12-month period count together toward the annual cap. A unit that received a 4% increase in March and a 5% increase in September of the same year has received 9% in the same rolling window and is out of compliance in OC where the ceiling is 8.0%.

• 5
  Calculate each building’s next allowable window and maximum percentage.

  Using the current BLS CPI for the building’s region, calculate the maximum allowable increase for the next 12-month period. Subtract any increases already given within the current rolling window. The remainder is your headroom for the next notice. Set a calendar reminder 90 days before each tenant’s window opens to prepare notices and verify the math.

• 6
  Serve written notice before any increase takes effect.

  California Civil Code Section 827 requires 30 days’ written notice for rent increases of 10% or less for month-to-month tenants. Because AB 1482 limits increases well below 10%, the 30-day notice standard applies in most cases. Deliver notice by first-class mail or personal service. Keep proof of service for every notice.

• 7
  Update the tracker each May with new BLS CPI figures.

  The BLS releases April CPI data each spring. Update the maximum allowable cap for each region in your tracker when those figures are published. OC and IE will likely show different changes year over year. If you lock in last year’s numbers, you may inadvertently exceed the new ceiling for one region while staying compliant in another.

What Happens If I Exceed the AB 1482 Rent Cap?

California Civil Code Section 1947.15 establishes the remedies available to a tenant who was charged more than the AB 1482 cap allows. The statute gives tenants the right to recover:

• Actual damages: The amount overcharged, calculated as the difference between the rent actually paid and the rent that was lawfully permitted under the cap
• Civil penalty: Up to $500 to $2,000 per violation, in addition to actual damages
• Attorney’s fees and costs: At the court’s discretion if the tenant prevails in a lawsuit

There is a safe harbor: a landlord who receives written notice from a tenant of an alleged overcharge can avoid the civil penalty by repaying the entire amount of the overcharge within 15 days of receiving that notice. However, the right to repayment of actual damages survives regardless of the timing. The safe harbor eliminates the penalty only; it does not eliminate the underlying obligation to make the tenant whole.

Overcharges can also become a landlord-tenant dispute that affects the property’s performance. A tenant with a pending Section 1947.15 claim has a legal basis to dispute additional charges, withhold some amounts pending resolution, or bring a small claims action. For a portfolio owner trying to run buildings efficiently, a compliance failure in one building creates management friction that affects everything from lease renewals to the building’s operating history when you eventually sell.

How Does TrueDoor Manage AB 1482 Compliance Across a Portfolio?

Kyle Thompson and the TrueDoor team stay current on California rent law through active membership in NARPM (National Association of Residential Property Managers) and CalNARPM, the California state branch that tracks California-specific legal changes. When a new bill passes or a court interprets an existing statute, that update goes into the training and operational procedures the account management team uses day-to-day (NARPM, 2025).

“Property managers are becoming a much more needed service provider because of the complexity of navigating tenant relations, applications for properties, and making sure that we stay in line with California laws.” | Kyle Thompson, Owner and Co-Founder, TrueDoor Property Management

For multifamily owners with multiple buildings, TrueDoor handles the compliance tracking that most self-managing landlords struggle to maintain consistently. Each building gets its own coverage classification, CPI region assignment, and increase history. Notices are prepared against the correct ceiling for each building’s location. When the BLS publishes new CPI data each spring, TrueDoor updates the cap figures for OC and IE properties before any new notices go out.

TrueDoor also works with independent attorney consultants who interpret new laws and advise on specific situations. For a portfolio owner facing a rent increase question that touches a city ordinance, a building crossing the 15-year coverage threshold, or a tenant dispute over a prior increase, that legal access is part of what the management relationship provides.

Beyond compliance, TrueDoor’s TrueScreen AI fraud detection system helps reduce the tenant quality problems that make eviction and rent disputes more common in the first place. Getting good tenants into covered units means fewer situations where the just cause eviction rules create complications. As Kyle Thompson puts it: “Getting good tenants is the name of the game here.” Based on internal portfolio analysis, TrueDoor’s systems catch approximately 30% more fraudulent applications than standard screening methods, which results in roughly 10% fewer evictions across the managed portfolio (TrueDoor internal portfolio data, 2025).

Sources: California Civil Code Sections 1947.12, 1946.2, and 1947.15 (AB 1482, 2019) · Bureau of Labor Statistics, Consumer Price Index, All Urban Consumers, Los Angeles-Long Beach-Anaheim MSA and Riverside-San Bernardino-Ontario MSA, April 2025 · Santa Ana Tenant Protection Ordinance (Santa Ana Municipal Code, 2022) · NARPM, California Rent Control Update, 2025 · TrueDoor Property Management, operational screening and eviction rate data, 2025.

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