Investing in California real estate offers significant opportunities, but buying a mobile home park means stepping into one of the most heavily regulated asset classes in the state. Unlike standard commercial properties, mobile home parks are governed by specialized state statutes, constantly evolving local rules, and strict operational oversight.
In California, park residents typically own their physical homes but lease the land beneath them from you, the park owner. This creates a unique and tightly regulated dynamic. Skipping thorough due diligence before removing contingencies can expose investors to serious regulatory fines, unexpected rent control restrictions, and costly civil litigation..
Navigating the MRL and local rent control
The foundation of mobile home park operations is the Mobilehome Residency Law. The MRL strictly limits valid grounds for eviction to specific statutory reasons under Civil Code § 798.56, such as non-payment of rent or a formally approved change of use. California Civil Code § 798.30 also requires a minimum of 90 days’ written notice before any rent increase takes effect.
A common mistake among out-of-state investors is assuming that mobile home spaces fall under California’s statewide rent cap law, AB 1482 (the Tenant Protection Act of 2019). There are two key points to understand here:
- The AB 1482 exemption: Mobile home park spaces are generally exempt from the Tenant Protection Act of 2019 because they are already governed by the MRL and local ordinances.
- The local ordinance factor: Instead, spaces are subject to a patchwork of city and county Mobilehome Rent Control Ordinances (MRCOs). Many California cities enforce “hard” vacancy control, meaning space rent stays capped even when a new resident moves in.
Understanding your specific local MRCO is critical. If the applicable ordinance has no vacancy decontrol clause, the law bars you from raising space rents to market rate when a tenant moves out, directly limiting your revenue potential.
Regulatory compliance, Title 25, and utilities
Physical due diligence must include a thorough regulatory audit under Title 25 of the California Code of Regulations, enforced by the California Department of Housing and Community Development (HCD). As the new owner, you inherit all outstanding health, safety, and infrastructure violations. Unresolved violations can lead to the suspension of your Permit to Operate (PTO) until you correct them, which can halt your entire operation.
Utility billing adds another layer of regulatory complexity:
- The rate cap rule: Under Civil Code § 798.40 and Public Utilities Code § 739.5, park owners using master-meter or submeter arrangements must charge residents the exact rate the public utility would charge if it billed residents directly.
- The markup prohibition: Adding administrative fees or convenience charges on top of submetered utility bills is illegal under Public Utilities Code § 739.5 and can expose park owners to class-action statutory damages.
Thorough due diligence is the cornerstone of a sound mobile home park acquisition. Before closing, work with a dedicated real estate attorney to review municipal rent stabilization histories, audit HCD Title 25 records, and identify any outstanding compliance issues, so your investment is fully protected under California law.

