When mold begins spreading across your walls, or when peeling lead paint shows up in an older home, the consequences can affect far more than your comfort. Mold, lead dust, and other toxic hazards can trigger serious health problems, damage property, and make your home unsafe to live in. Yet many tenants are told they must pay out of pocket, handle repairs themselves, or simply “live with it.”
California law does not support this. Landlords and property owners have legal duties to keep homes safe, and tenants have powerful rights when those duties are ignored. The Law Offices of Katherine Cohan, APLC created this guide to help you understand your protections, your legal options, and the steps you should take if you believe toxic exposure is affecting your home or health.
Mold growth often begins quietly. A small leak under a sink, moisture in a wall cavity, or a roof issue after a storm can turn into a widespread infestation. If you develop respiratory issues, headaches, allergic reactions, or other symptoms after mold appears, you may be dealing with more than a repair problem. You may have a premises liability claim.
Property owners have a legal duty to maintain safe premises and to fix or warn others about dangerous conditions. This means they can be held responsible if they knew or should have known about hazards such as:
If the owner ignored the problem or failed to fix it in a reasonable time, negligence may apply.
Civil Code section 1941.1 requires landlords to provide homes that are fit to live in. A home filled with mold caused by poor maintenance is not habitable. This rule cannot be waived or altered by lease language. Even if your lease says you must handle mold, the law overrides it.
This statute lists mold as a condition that can make a property “substandard.” Once a home is legally substandard, it cannot be rented until the hazard is corrected. Landlords who ignore substandard conditions may face penalties or liability for resulting health problems.
Both mold and lead paint trigger serious health consequences, but in different ways.
Mold spreads quickly and can infiltrate walls, ceilings, ventilation systems, and furniture.
Lead exposure is most common in homes built before 1978. Even small amounts of lead dust can:
Lead problems often begin with peeling or chipping paint but can spread as dust during repairs or renovations.
California enforces strict rules to protect renters from lead-based hazards.
For homes built before 1978, landlords must:
Failure to comply can result in federal penalties.
State law aligns with federal rules but brings extra protections:
These rules apply even if the landlord claims they “did not know” the paint contained lead.
Most hazards stem from poor maintenance or failure to address structural issues. Common examples include:
When a property owner fails to take reasonable steps to maintain the building, liability increases.
To show a landlord or property owner caused mold or lead-related illness, you must connect three things:
Photos, videos, inspection reports, and samples can establish mold or deteriorating paint.
Evidence might include:
Medical records and expert reports can link symptoms to exposure. Environmental specialists or doctors may also provide testimony.
The Law Offices of Katherine Cohan, APLC helps tenants build these connections and present strong evidence.
Here is what you should do if you suspect mold, lead, or another environmental hazard.
Take photos of stains, peeling paint, leaks, or visible mold. Note dates, smells, water damage, and any changes in your health.
Ask for records of prior inspections, repairs, or known hazards. Written requests help protect your rights.
If repairs disturb paint or drywall, insist on certified contractors, proper containment, and dust control.
Depending on the hazard, contact:
If you experience symptoms, especially children or pregnant individuals, request testing and keep medical documentation.
Maintain a file of photos, emails, medical results, reports, contractor notes, and receipts.
Depending on the situation, tenants may pursue:
If toxic conditions make the home unsafe, tenants may recover damages.
Medical bills, suffering, lost property, relocation costs, and diminished quality of life may be compensable.
Tenants may recover money they spent correcting hazards the landlord should have fixed.
Courts can order landlords to repair hazards immediately or stop unsafe practices.
Courts may reduce rent when habitability is substantially compromised.
Toxic exposure claims can be complex. Some of the challenges tenants must navigate include:
Strong documentation and timely action are essential.
Toxic exposure cases require a combination of legal skill, environmental knowledge, and habitability expertise. At The Law Offices of Katherine Cohan, APLC, we help tenants:
Your initial case review is offered through a Free Assessment with no upfront costs.
If you suspect mold, lead paint, or other toxic hazards in your rental home, do not wait. The longer the exposure continues, the more difficult the case becomes.
Contact The Law Offices of Katherine Cohan, APLC today for a Free Assessment. We will help you understand your rights, protect your health, and hold negligent landlords accountable.
