Cal. Civ. Code § 70-24-409
Fire Or Casualty Damage -- Rights Of Tenant
Operative Text
(1) If the dwelling unit or premises are damaged or destroyed by fire or casualty to an extent that enjoyment of the dwelling unit is substantially impaired, the tenant may: (a) immediately vacate the premises and notify the landlord in writing within 14 days of the tenant's intention to terminate the rental agreement, in which case the rental agreement terminates as of the date of vacating; or (b) if continued occupancy is lawful, vacate any part of the dwelling unit rendered unusable by the fire or casualty, in which case the tenant's liability for rent is reduced in proportion to the diminution in the fair rental value of the dwelling unit. (2) This section does not apply when the fire and casualty damage was caused by the purposeful or negligent act of the tenant or the tenant's family or guests. (3) If the rental agreement is terminated, the landlord shall return all security recoverable pursuant to Title 70, chapter 25, and all prepaid rent. Accounting for rent in the event of termination or apportionment must be made as of the date of the fire or casualty.
Montana Code § 70-24-409 addresses what happens to a rental agreement when a dwelling unit is significantly damaged or destroyed by fire or other casualty. If the damage substantially impairs a tenant's ability to enjoy the unit, the law provides two paths: the tenant may end the rental agreement by vacating and giving written notice within 14 days, or—if continued occupancy is lawful—may vacate only the unusable portion and have rent reduced proportionally to the loss in fair rental value. These protections do not apply when the tenant, their family, or their guests caused the damage through purposeful or negligent conduct, and any returned security deposit or prepaid rent is calculated as of the date the fire or casualty occurred.
Plain English — not legal advice.
Under Mont. Code Ann. § 70-24-409, compliant property owners and managers typically assess the extent of fire or casualty damage promptly to determine whether a tenant's enjoyment of the unit is substantially impaired. When a tenant provides written notice of intent to terminate within the 14-day window, operators generally process the return of all recoverable security deposits and prepaid rent, prorated to the date of the casualty rather than the end of the lease term. Operators also document whether the damage was caused by the tenant, household members, or guests, since § 70-24-409(2) removes these statutory protections in cases of purposeful or negligent tenant-caused damage.
General guidance for property managers — not legal advice for your specific situation. Consult an attorney for advice on your case.
Mont. Code Ann. § 70-24-409 gives Montana tenants meaningful options when fire or casualty substantially impairs their ability to use their home. If you vacate the entire unit, providing written notice to the landlord within 14 days preserves your right to terminate the rental agreement and receive back your security deposit and any prepaid rent, calculated from the date of the casualty. If only part of the unit is rendered unusable and continued occupancy is lawful, § 70-24-409(1)(b) allows for a proportional rent reduction—tenants who believe these rights are being denied may consider contacting a local tenant-rights organization or consulting with a housing attorney to understand available options.
General guidance for tenants — not legal advice for your specific situation. Consult a tenant-rights organization or attorney for advice on your case.
Generated October 22, 2026 — auto-generated, not yet human-reviewed. See /transparency for methodology.
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