Zone Zero Landscaping Rules in Hidden Hills
Zone Zero Hidden Hills / Landscaping
What Zone 0 changes at the foundation line
Zone Zero is mostly a ground-layer rule. Wood mulch, bark, dead leaves, dry ornamental grasses, and firewood stacks leave the first five feet. What replaces them: gravel, decomposed granite, pavers, stone, bare soil, and hardscape that reads perfectly natural on a ranch-style lot.
On an equestrian property the ground layer includes things a suburban checklist never mentions: hay storage, shavings and bedding piles, and paddock footing materials stacked against barn walls. Those are the first things an assessment flags.
Out of the zone
Combustible mulch, dead plants, dry grasses, leaf litter, firewood, hay, shavings, and stored combustibles within 0-5 ft of any structure.
Into the zone
Gravel or decomposed granite beds, stone borders, pavers, irrigated low-fuel plantings in noncombustible containers where the final rules allow.
Case by case
Mature trees, established hedges, and specimen plantings near structures. LA County's implementation decides these, parcel by parcel, not a blanket ban.
The oak question, answered honestly
Early drafts of the state rule drew pushback across California for reading like a mandate to strip greenery, and shade, from around homes. The April 2026 draft scaled back the blanket vegetation language, and the framework now leans on local authorities to write the specifics.
For Hidden Hills that means the oaks lining the bridle trails and yards are not automatically condemned. A healthy, irrigated, limbed-up tree is treated very differently from dead fronds or a resin-heavy shrub against a wall. Expect LA County's implementation to focus on ground fuels and dead material first.
Two honest caveats: the final state text is not adopted yet, and tree-by-tree decisions belong to the county's inspectors, not to any website. Verify before you cut, and before you assume you must.
Landscaping questions, answered
Do I have to remove my mature oaks?
No. The April 2026 draft scaled back blanket vegetation removal, and the local-first framework lets LA County allow well-maintained trees whose canopies are healthy and limbed up. The zone targets what sits on the ground in the first 5 feet, not established shade trees as a category.
Is wood mulch really banned in the first five feet?
Combustible mulch inside the 0-5 ft zone is one of the clearest targets of the draft rule. Gravel, decomposed granite, pavers, or bare soil are the compliant replacements at the foundation line.
What about hay, shavings, and manure piles near the barn?
Hay and dry bedding are among the most ignitable materials on any equestrian property. Keep them at least 5 feet off structure walls, and farther where practical. Manure is not the fire issue; the dry combustibles are.
Can I keep planters against the house?
Plan on noncombustible pots with well-irrigated, low-fuel plants, and be ready for the final text to be stricter. Dead or dry container plants against a wall behave like kindling regardless of the pot.
Get a ground-layer plan for your lot
A free assessment walks the first five feet of every structure on your property and tells you what stays, what moves, and what gets swapped.