How Does Rent Control Apply to Duplexes in Los Angeles?

Owning a duplex in Los Angeles can be a smart investment—but if it was built before October 1, 1978, you’re likely subject to the city’s Rent Stabilization Ordinance (RSO). Here’s how rent control rules affect duplex owners, whether you’re renting one unit or both.

Duplexes and the RSO

A duplex is considered a multi-family property. Under the RSO:

• Pre-1978 Duplexes: Fully covered, meaning rent increases are capped at the annual allowable percentage (3% for July 2025–June 2026, plus 1% if you pay gas/electric) and eviction rules follow the RSO’s “just cause” list.

• Post-1978 Duplexes: Not subject to RSO rent caps, but covered by the Just Cause Ordinance (JCO) for eviction protections.

Example: If your duplex was built in 1975, you cannot raise rents beyond RSO limits and must follow strict eviction procedures.

Key Landlord Requirements

• Annual Registration: All RSO duplexes must be registered with the LA Housing Department (LAHD).

• Notices: Rent increases require a 30-day notice (or 90 days for increases above 10%).

• Relocation Assistance: Required for no-fault evictions, ranging from $8,500 to $21,200 depending on the tenant’s situation.

Exemptions

• An owner-occupied duplex with the second unit rented may still be covered by RSO rules unless it meets specific exemption criteria.

Considering renting out your Los Angeles duplex? The Borges Real Estate Team can help you navigate rent control laws to maximize your investment while staying compliant.