5 Things Your HOA Board Needs to Know About Tree Liability

Why Tree Liability Catches Boards Unprepared

HOA boards deal with paint colors, parking disputes, and assessment increases. Tree management rarely makes the agenda until a 60-foot eucalyptus drops a branch on a parked car, or a dead oak falls on a walkway and someone gets hurt. Then it becomes the most expensive item the board has ever faced.

I consult with HOA communities across the Bay Area, and the pattern is always the same. No inspection program, no documentation, no tree management policy, and a scramble after damage occurs. California law holds HOAs to a clear duty of care for common-area trees, and the liability exposure is real. Here are the 5 things every board needs to understand.

1. Your Duty of Care Is Real and Documented

Civil Code 4775(a)(1) makes the association responsible for 'repairing, replacing, and maintaining the common area' unless the CC&Rs say otherwise. Trees growing in the common area are part of the common area, so this maintenance responsibility covers them. The duty to keep those trees reasonably safe comes from California's general negligence rule (Civil Code 1714) and from Frances T. v. Village Green Owners Assn. (1986). That case holds an association to a landlord-like standard of care for its common areas.

The standard is ordinary care: whether the association knew or reasonably should have known of the hazard and failed to act. Ignoring visible defects such as dead branches, a leaning trunk, fungal growth at the base or cracks in the main stem exposes the association to negligence liability. Courts also defer to a board that, after reasonable investigation and in good faith, chooses among reasonable ways to meet its maintenance obligation (Lamden v. La Jolla Shores Clubdominium Homeowners Assn., 1999).

What protects your board is a documented inspection and maintenance program. When an arborist has assessed your trees and given written recommendations, and the board has followed them within a reasonable time, you have shown due diligence. That documentation becomes your defense in court.

2. City Tree Ordinances Apply to Your HOA

A common misconception is that HOAs can do whatever they want with trees on common-area property. They can't. Bay Area cities' protected tree ordinances apply to HOA common areas the same way they apply to individual homeowners. If you want to remove a protected tree, you need a city permit.

The thresholds vary dramatically across the Bay Area:

I've seen HOAs get fined for removing trees without permits, sometimes because a well-meaning board member approved removal without checking the city ordinance. Use our 56-city ordinance table to look up your city's rules, and check the Permit Checker before authorizing any tree removal.

For a deeper look at how Bay Area cities compare, see our article on the strictest tree ordinances in the Bay Area.

3. You Need a Professional Inspection Schedule

Many consulting arborists, myself included, recommend a professional tree risk assessment every 2 to 3 years for all common-area trees, plus annual visual inspections and post-storm assessments. No statute sets an interval; what matters legally is a documented, reasonable program.

A professional tree risk assessment is performed by an ISA Certified Arborist, ideally one with tree risk assessment qualification. The arborist evaluates every tree for structural defects, health issues, deadwood, root problems, and proximity to targets (people, cars, buildings). Each tree receives a risk rating, and the arborist provides prioritized recommendations.

What a typical assessment looks like for an HOA (costs are my estimates from Bay Area HOA work):

For more details on what goes into an arborist assessment, see our arborist report cost guide and tree risk assessment guide.

4. Your Insurance Probably Has Gaps

Most HOA master policies cover damage caused by fallen trees, but check your policy and CC&Rs. There are common exclusions that boards don't discover until they file a claim:

Gradual deterioration exclusion: If a tree was visibly declining over time and the association failed to address it, the insurer may deny the claim under the "lack of maintenance" or "gradual deterioration" exclusion. This is where documented inspections matter most: they prove the board was watching and acting.

High deductibles: Many HOA policies have deductibles of $5,000 to $25,000. For a branch failure that damages one car, the HOA may be paying out of pocket. Some CC&Rs allow the board to assess the deductible back to individual homeowners; check your CC&Rs.

Third-party claims: If a common-area tree damages a neighbor's property outside the HOA, the association's general liability policy should cover it, but check your policy limits. A tree falling on a neighbor's house can easily generate a $200,000+ claim.

Board member liability: D&O (Directors and Officers) insurance protects board members from personal liability for management decisions. Make sure your policy is current and covers tree-related claims. Some policies exclude "known hazard" situations, another reason to act promptly on arborist recommendations.

5. The Cost of Doing Nothing Is Always Higher

Here's the math that usually convinces boards to invest in tree management. The figures are my estimates from Bay Area HOA work and claims I have seen:

An annual tree maintenance budget of $5,000 to $15,000 for a mid-size community is a fraction of what one liability claim costs. And that maintenance budget covers the work that prevents claims in the first place. For more on costs, see our Cost Estimator tool.

Building a Tree Management Program

If your community doesn't have a tree management program, here's how to start:

Step 1: Inventory and Assess

Hire an ISA Certified Arborist to inventory all common-area trees and perform a baseline risk assessment. This gives you a complete picture of what you have, what condition it's in, and what needs immediate attention. Budget $3,000 to $5,000 for a community with 50 trees.

Step 2: Address Immediate Hazards

Act on high-priority recommendations first: dead trees, large deadwood over targets, and structural defects with high failure risk. These are the items that create the most liability exposure and should be addressed within 30 days of the assessment.

Step 3: Adopt a Written Policy

Put your tree management program in writing. Include inspection schedules, response timelines, permit requirements for your city, contractor insurance requirements, budget allocations, and emergency procedures. The board should formally adopt the program by resolution. If any part of it imposes rules on owners (approval requirements, species restrictions), give members the 28-day notice-and-comment period required by Civil Code 4360 before adopting it.

Step 4: Budget Annually

Include tree maintenance in your annual operating budget and your reserve study. Routine maintenance (pruning, deadwood removal) is an operating expense. Major tree removals and replacements may be reserve expenses depending on your community's reserve study.

Step 5: Document Everything

Keep inspection reports, arborist recommendations, board meeting minutes discussing tree issues, work orders, contractor invoices, and before-and-after photos. This paper trail is your legal defense. If a tree fails and there's a claim, the first thing an attorney requests is your inspection history.

For communities in fire-prone areas like Berkeley, Oakland, Mill Valley, or Lafayette, your tree management program should also address defensible space requirements. See our defensible space inspection guide for details.

Frequently Asked Questions

Is the HOA liable if a common-area tree falls on a homeowner's car?

Generally yes. Civil Code 4775 makes the association responsible for maintaining the common area, including its trees, unless the CC&Rs provide otherwise. If the association knew or should have known the tree was hazardous and failed to act, the HOA is liable for damages. Regular tree inspections create a documented record that the board is meeting its duty of care.

How often should an HOA have trees inspected?

Many consulting arborists recommend a professional tree risk assessment every 2 to 3 years for all common-area trees, with annual visual inspections by qualified staff. Trees near structures, walkways, parking areas, and playgrounds should be inspected more frequently. After major storms, an arborist should inspect all large trees for storm damage that may not be visible from the ground.

Does the HOA need a permit to remove a common-area tree?

In most Bay Area cities, yes. Tree protection ordinances apply to HOA common areas just as they do to individual homeowners. The HOA must follow the same permit process for protected trees. Cities like Palo Alto, Oakland, Los Gatos, and Saratoga require permits for trees above certain trunk diameter thresholds regardless of ownership. Removing a protected tree without a permit can result in fines against the HOA.

Can individual homeowners remove trees on their own lots in an HOA?

It depends on the CC&Rs and the city's tree ordinance. Many HOAs require architectural committee approval for tree removal even on individual lots. The city's protected tree ordinance also applies regardless of HOA rules. A homeowner in Cupertino, for example, needs a city permit to remove a native oak or other specimen-species tree over 12 inches in diameter, plus HOA approval if the CC&Rs require it.

Who pays for tree maintenance in an HOA, the association or the homeowner?

Unless the CC&Rs provide otherwise, common-area trees are the association's responsibility (funded through assessments), trees on an owner's lot are the owner's, and trees in exclusive-use common area (for example a fenced patio or yard assigned to one unit) are maintained by the owner but repaired or replaced by the association (Civ. Code 4775). However, if a common-area tree's roots damage a homeowner's property, the HOA may be liable for both the tree work and the property repairs.

What is an HOA's duty of care for trees?

Under California law, HOAs have a duty to maintain common areas in a safe condition. For trees, this means regular inspection, timely removal of hazardous conditions, proper pruning, and documented maintenance programs. The standard is ordinary care: whether the association knew or reasonably should have known of the hazard and failed to act. A documented tree management program with professional inspections is the strongest defense against liability claims.

Can an HOA be sued for not removing a dead tree?

Yes. If the board knew about a dead or hazardous tree and failed to address it, and the tree caused injury or property damage, the association faces significant liability. Under California premises liability law, the HOA can be sued for negligence. Individual directors are generally protected by Civil Code 5800 if they acted in good faith with the required insurance in place, but that protection does not cover willful, wanton or grossly negligent conduct such as knowingly ignoring a documented hazard.

What should HOA boards include in a tree management policy?

A solid policy covers inspection schedules and qualified inspector requirements, response timelines for identified hazards, emergency tree procedures after storms, the permit process for tree removal in the applicable city, budget allocation for routine tree maintenance, insurance requirements for tree service contractors, and documentation and record-keeping procedures. An ISA Certified Arborist can help draft a policy tailored to your community's specific tree inventory.

Does HOA insurance cover tree damage?

Most HOA master policies cover damage caused by fallen trees to common areas and structures. However, policies vary significantly. Some exclude wind-damaged trees, and most have deductibles that may be allocated to individual homeowners under the CC&Rs. Board members should review their policy's tree-related exclusions and make sure coverage is adequate for their community's tree inventory.

How much does a tree risk assessment cost for an HOA community?

In my practice, a professional tree risk assessment for a Bay Area HOA typically costs $2,000 to $10,000 depending on the number of trees and property size. A community with 50 common-area trees might pay $3,000 to $5,000 for a full inventory and risk assessment. Per tree, the cost runs $50 to $150 depending on access and complexity. This is a fraction of what a single liability claim from a failed tree can cost.

Can an HOA restrict homeowners from planting certain tree species?

Yes. HOAs can restrict tree species through the CC&Rs or architectural guidelines, provided decisions follow the written procedure required by Civil Code 4765 and the rules do not prohibit low-water-using plants as a group (Civil Code 4735). Many Bay Area HOAs have banned or restricted high-maintenance or high-risk species like blue gum eucalyptus, silver maple, and certain palm species. Some associations now require approval for any tree planting and keep approved species lists based on arborist recommendations.

What happens if an HOA tree damages a neighbor's property outside the HOA?

The HOA is treated like any other property owner under California tree law. If the HOA knew or should have known about a hazardous condition and the tree damages a neighbor's property, the association is liable. The affected neighbor can file a claim against the HOA's insurance. Regular maintenance and documented inspections protect the association from these claims.

Michael Schuck
ISA Certified Arborist WE-15750A · ISA Certified Urban Forest Professional WE-15750AF
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