What Altadena Regulates: A Complete Ordinance Overview

Altadena, California may not be the biggest city in the state, but it has its own set of local rules that residents need to follow. With 22 tracked ordinances across 15 categories, there is more here than you might expect.

Short-Term Rentals

Occupancy Limits: Guest occupancy is limited to two persons per bedroom plus two additional, with an absolute maximum of 12 guests per booking per LA County Code Section 7.96.060.K..

Also covered: Short-Term Rental Parking Rules (moderate). See the full short-term rentals guide for Altadena for details.

Cannabis Regulations

Home Cultivation: California Proposition 64 (Health & Safety Code 11362.1) allows adults 21+ to cultivate up to 6 cannabis plants for personal use. LA County Ordinance 2017-0025 limits cultivation to indoor or secured outdoor areas not visible to the public..

Rental Property Rules

Just Cause Eviction: Tenants in Altadena covered by the LA County RSTPO can be evicted only for an enumerated 'just cause', non-payment, lease violation, nuisance, owner move-in, withdrawal from market (Ellis Act), or substantial remodel, with relocation assistance for no-fault terminations..

Also covered: Rent Control (moderate). See the full rental property rules guide for Altadena for details.

Environmental Rules

Flood Zones: Most of Altadena is in FEMA Flood Zone X (minimal hazard), but the area along Eaton Wash, the Arroyo Seco tributaries, and post-Eaton Fire burn-scar areas have heightened flood and debris-flow risk. LA County Code Ch.

Sign Regulations

Political Signs: Political signs on private property in Altadena are protected speech under the First Amendment (Reed v. Town of Gilbert, 2015).

Fire Regulations

Brush Clearance: Altadena is largely in a Very High Fire Hazard Severity Zone. LA County Fire requires year-round brush clearance within 200 feet of any structure and 10 feet of combustible fences and roadways..

Also covered: Wildfire Zones (moderate). See the full fire regulations guide for Altadena for details.

Noise Ordinances

Leaf Blower Rules: LA County does not have a county-wide gas leaf-blower ban, but operation is subject to the Ch. 12.08 dB limits and construction-hours rules (7 a.m.–8 p.m.

Soliciting & Door-to-Door

Solicitor Permits: Door-to-door commercial solicitors in Altadena must obtain a business license under LA County Code Title 7 and respect 'No Soliciting' signs. Non-commercial canvassing (political, religious) is protected speech..

Swimming Pools & Spas

Pool Permits: All swimming pools, spas, and hot tubs in Altadena require a building permit from LA County Building & Safety under Title 26 (Building Code) plus a plumbing permit and electrical permit for equipment..

Landscaping Rules

Weed Ordinances: LA County Fire's Brush Clearance program also functions as the weed-abatement ordinance: vacant and improved lots must keep weeds and grasses cut to under 3 inches in fire-hazard areas. Annual notices issued each spring..

Also covered: Water Restrictions (limited), Tree Trimming (moderate). See the full landscaping rules guide for Altadena for details.

Food Trucks & Mobile Vendors

Food Truck Permits: Mobile food facilities operating in Altadena need a LA County Department of Public Health Mobile Food Facility permit, a LA County business license under Title 7, and must operate from approved commissaries..

Trash & Recycling

Recycling Requirements: California SB 1383 requires all residents and businesses in Altadena to separate organic waste (food scraps + yard trimmings) from trash. LA County Code Chapter 20.87 implements at the county level via Athens Services' three-bin program..

Parking Rules

EV Charging: Altadena is an unincorporated community in Los Angeles County, so EV charger installations are permitted by LA County Public Works Building & Safety Division at the East LA District Office. New one- and two-unit single-family homes must be EV-Capable with conduit and panel space for a Level 2 charger under the 2022 California Building Standards Code (CBSC) and CalGreen §4.106.4.

Also covered: Abandoned Vehicles (moderate), Street Parking Limits (moderate). See the full parking rules guide for Altadena for details.

Property Maintenance

Property Blight: LA County Code Title 11 (Health and Safety) and the Nuisance Abatement provisions in Title 22 prohibit accumulating trash, junked vehicles, overgrown vegetation, or maintaining buildings in disrepair. Enforced by LA County Code Enforcement..

HOA Rules

CC&R Enforcement: HOAs in Altadena are governed by California's Davis-Stirling Common Interest Development Act (Civ. Code 4000 et seq.).

What to Do With This Information

Whether you are renting, buying, or renovating in Altadena, knowing the local rules upfront saves headaches later. Dig into the individual ordinance pages linked above for the complete picture, including fines and exemptions.