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

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

Key Facts

Move-in notice
Required before tenancy starts
Increase notice
Required with every rent increase
Language rule
Must match lease or negotiation language
Consequence of skipping
Increase not effective, § 11-3.09(A)(1)

Summary

Antioch Municipal Code § 11-3.10 requires landlords to give tenants written notice of their Rent Stabilization Ordinance rights at move-in and again with every rent increase notice. A rent hike is not legally effective until the landlord has met every notice requirement in the chapter.

§ 11-3.10 NOTICE REQUIREMENTS.

(A) On or before the date of commencement of a tenancy, the landlord of any residential real property subject to this Rent Stabilization chapter shall deliver to the tenant written notice of the following in a form prescribed by the city:

(1) The tenancy is regulated by this Rent Stabilization chapter, Antioch Municipal Code, Title 11, Chapter 3; and

(2) The tenant has a right to submit a complaint to the city pursuant to § 11-3.13 or a rent reduction petition pursuant to § 11-3.06 for rent charged in violation of this Rent Stabilization chapter; and

(B) At the same time and with any notice to increase rent, the landlord must deliver written notice of the following:

(4) No rent increase is effective unless and until the requirements of this Rent Stabilization chapter have been met.

Full Breakdown

04 by making the increase itself contingent on paperwork the landlord must provide at two separate moments. 06 if overcharged, and that the landlord can respond to any such petition. Subsection (B) requires a second, parallel notice delivered at the same time as any notice increasing the rent, covering the same regulated-tenancy statement, the tenant's right to petition, and one further point: that no rent increase is effective unless and until every requirement of the Rent Stabilization chapter has been met. Subsection (C) ties the required language to how the tenancy was negotiated: where there is a written lease, notices must be given in the language primarily used in that lease, and where there is no written lease, in whatever language the landlord and tenant used when negotiating the tenancy's terms. 04 cap.

Violations & Fines

Serving a rent increase without the § 11-3.10 notice makes the increase legally ineffective under § 11-3.09(A)(1), meaning the tenant can keep paying the old rent and the landlord cannot enforce the higher amount through eviction. A tenant who is billed the increase anyway can file a petition to determine compliance with a city Hearing Officer under § 11-3.09(C), or a rent reduction petition under § 11-3.06.

Frequently Asked Questions

What notice must an Antioch landlord give before raising the rent?
Under § 11-3.10(B), the landlord must deliver a written notice, in the city's prescribed form, at the same time as any rent increase notice. It must state that the tenancy is regulated by the Rent Stabilization chapter, that the tenant can file a rent reduction petition under § 11-3.06, and that the increase is not effective until all chapter requirements are met.
Does an Antioch landlord have to give a rent notice in Spanish?
Yes, if that is the language the lease was negotiated in. Section 11-3.10(C) requires the landlord to give required notices in the language primarily used in a written lease, or the language used when negotiating an unwritten tenancy, so a Spanish-negotiated tenancy must get the notice in Spanish.
Can a landlord collect a rent increase if they skipped the required notice?
No. Section 11-3.09(A)(1) makes a rent increase legally ineffective if the landlord fails to substantially comply with the Rent Stabilization chapter's requirements, which includes the § 11-3.10 notices. A tenant can keep paying the prior rent and ask a city Hearing Officer to confirm the increase never took effect.

Sources & Official References

Other rules in Antioch

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