Landscaping Rules in Thousand Oaks, CA (2026)
9 verified landscaping rules for Thousand Oaks, California, sourced directly from the municipal code and official government pages.
Verified from official government sources
Grass Height Limits
Thousand Oaks regulates grass and vegetation height through property maintenance standards and fire prevention requirements. Overgrown vegetation exceeding 12 inches is subject to code enforcement, with stricter standards in fire hazard zones.
Thousand Oaks Grass Height Ordinance
Some RestrictionsTree Trimming
Thousand Oaks has a strong tree protection program regulating trimming and pruning of protected trees. The city's Heritage Tree Ordinance protects oaks, sycamores, and walnuts of qualifying size, requiring permits for significant trimming.
Thousand Oaks Tree Trimming Ordinance
Heavy RestrictionsCal. Pub. Resources Code § 4291
4291. (a) A person who owns, leases, controls, operates, or maintains a building or structure in the state responsibility area shall at all times do all of the following: (1) (A) Maintain defensible space of 100 feet from each side and from the front and rear of the structure, but not beyond the property line, except as provided in subparagraph (B). The amount of fuel modification necessary sha...
Tree Removal & Heritage Trees
Thousand Oaks has oak tree preservation protections — no ADUs or structures in protected tree zones. Tree removal permits may be required by TOMC Title 9 for protected species. Contact Community Development for permits.
landscaping/tree-removal
Some RestrictionsWeed Ordinances
Thousand Oaks requires property owners to maintain their properties free of weeds and combustible vegetation under the city's fire prevention and property maintenance codes. The Ventura County Fire Protection District conducts annual inspections.
Thousand Oaks Weed Abatement Ordinance
Heavy RestrictionsCal. Food & Agric. Code § 5004
5004. “Noxious weed” means any species of plant that is, or is liable to be, troublesome, aggressive, intrusive, detrimental, or destructive to agriculture, silviculture, or important native species, and difficult to control or eradicate, which the director, by regulation, designates to be a noxious weed. In determining whether or not a species shall be designated a noxious weed for the purpose...
Water Restrictions
Thousand Oaks enforces water conservation measures through its municipal code and coordination with the Calleguas Municipal Water District. Permanent water waste prohibitions under California law apply, with additional restrictions during drought declarations.
Thousand Oaks Water Restrictions Ordinance
Heavy RestrictionsCal. Code Regs. tit. 23, § 490 et seq. (Model Water Efficient Landscape Ordinance)
About 40% of the water Californians use at home is used outdoors. Large water savings can be gained by efficient landscape design, installation, management, and maintenance. This is accomplished by choosing climate adapted plants, improving soil conditions, using, and maintaining high efficiency irrigation equipment and managing the irrigation schedule to fit the plants water needs as they are ...
Rainwater Harvesting
Rainwater harvesting is legal and encouraged in Thousand Oaks under California Water Code Section 10574. Residential rain barrel installations do not require permits, and the city supports stormwater capture as part of its water conservation and watershed protection programs.
Thousand Oaks Rainwater Harvesting Ordinance
Few RestrictionsCalifornia AB 1750 — Rainwater Capture Act of 2012 (Water Code Part 2.4, Sections 10570-10574)
PART 2.4. Rainwater Capture Act of 2012. 10570. This part shall be known, and may be cited, as the Rainwater Capture Act of 2012. ... 10573. Solely for the purposes of this part, and unless the context otherwise requires, the following definitions govern the construction of this part: (a) "Developed or developing lands" means lands that have one or more of the characteristics described in subpa...
Native Plants
Thousand Oaks encourages native plant landscaping through its water-efficient landscape ordinance and development review process. New development must comply with MWELO, and the city's extensive open space preserves serve as models for native landscaping.
Thousand Oaks Native Plants Ordinance
Few RestrictionsArtificial Turf
Artificial turf is permitted in Thousand Oaks as a water-conserving alternative to natural grass. California AB 2104 prohibits HOAs from banning artificial turf, and the city does not require special permits for standard residential installations.
Thousand Oaks Artificial Turf Ordinance
Few RestrictionsCalifornia Civil Code Section 4735 (HOA artificial turf and drought-tolerant landscape protections)
(a) Notwithstanding any other law, a provision of the governing documents or architectural or landscaping guidelines or policies shall be void and unenforceable if it does any of the following: (1) Prohibits, or includes conditions that have the effect of prohibiting, the use of low water-using plants as a group or as a replacement of existing turf. (2) Prohibits, or includes conditions that ha...
Composting
Thousand Oaks encourages residential composting and complies with California SB 1383 organic waste diversion requirements. The city provides green waste collection through its waste hauler, and backyard composting bins are encouraged. Compost piles must be maintained to avoid nuisance odors and pest attraction.
Thousand Oaks Composting Rules
Few RestrictionsLooking for Ventura County county-wide rules?
County ordinances apply to unincorporated areas and may supplement Thousand Oaks city rules.
Landscaping Rules in Ventura County →