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Alameda County, CA Rental Property Rules: Rent Increase Notice (2026)

Some Restrictions
Compiled from the official code textEditor Martyn O'NeillLast verified August 2026

Key Facts

Applies to
Mobilehome parks only
Governing chapter
Ch. 3.32
Must disclose
On-site MRL review location
Standard annual cap
4% (§ 3.32.050)
Coverage
Unincorporated County only

Summary

Unincorporated Alameda County mobilehome park owners cannot charge a rent increase until they give the notices state law requires and disclose where residents can review the Mobilehome Residency Law.

City-specific rules exist: Oakland, San Leandro, Fremont, Berkeley, and Hayward have their own rent increase notice rules that differ from Alameda County's county-level regulations. If you live in one of those cities, check the city-specific page instead.

Rent increases pursuant to this chapter shall not be effective and shall not be charged, accepted, received or retained until the park owner has given all notices required by state law (see e.g. Civil Code Section 798.30), this chapter, and the rent review procedures.

Park owners shall maintain a current paper copy of the California Mobilehome Residency Law (Civil Code Sections 798 et seq.) and of this chapter in the on-site management office in an area readily accessible for review by mobilehome owners. If the copy cannot be made readily available in an on-site management office, the park owner shall immediately notify the housing director who may permit the copy to be stored in an alternate location. Each notice of a rent increase shall state the on-site location where the mobilehome residency law may be reviewed.

(Ord. No. 2017-16, § 2, 4-11-17)

Full Breakdown

Under Chapter 3.32 (Mobilehome Park Rent Review), a space-rent increase in an unincorporated-area mobilehome park is not effective, and cannot be charged, accepted, received, or retained, until the park owner has given all notices required by state law (the chapter points to Civil Code § 798.30), by Chapter 3.32 itself, and by the county's rent review procedures. Every rent-increase notice must also state where on-site the park keeps a current paper copy of the California Mobilehome Residency Law for residents to review. This is a mobilehome-park-specific rule; it does not cover ordinary apartment or house rentals, which follow state notice law instead.

Violations & Fines

A rent increase issued without the required notices, or without disclosing the on-site Mobilehome Residency Law review location, is not effective under § 3.32.070: the park owner cannot lawfully charge, accept, or retain it.

Frequently Asked Questions

Does this cover apartment rent increases?
No. Chapter 3.32 covers only mobilehome-park space rent in unincorporated Alameda County; regular rental housing follows state Civil Code § 827 notice rules instead.
What must the notice say beyond the amount?
It must state the on-site location where the park's copy of the California Mobilehome Residency Law is available for review, per § 3.32.070.

Sources & Official References

Other rules in Alameda County

All Alameda County rules

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