Rules for ZIP Code 91001
Altadena, CA · Los Angeles County
22 local rules on file for this area.
ZIP code 91001 is served by the city of Altadena, CA. The ordinances shown below come from Altadena's municipal code and apply to residential and commercial properties within city limits. These rules cover everything from noise restrictions and parking to building permits and animal regulations.
ZIP codes do not follow city lines. 91001 also covers:
- Altadena (community)~95% of residents
Shares are estimates from 2020 Census geography. If your address is in one of these, its rules apply instead.
Each topic below links to the full ordinance breakdown with specific code sections, fine amounts, and answers to common questions. The data is sourced from the official municipal code and verified by our editorial team.
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These are the local rules that apply to ZIP code 91001 based on Altadena ordinances.
Short-Term Rentals
2 rulesCannabis Regulations
1 rule- Home CultivationLight
Rental Property Rules
2 rules- Rent ControlSome
- Just Cause EvictionSignificant
Environmental Rules
1 rule- Flood ZonesSome
Sign Regulations
1 rule- Political SignsLight
Fire Regulations
2 rules- Wildfire ZonesSome
- Brush ClearanceSome
Noise Ordinances
1 ruleSoliciting & Door-to-Door
1 ruleSwimming Pools & Spas
1 rule- Pool PermitsSome
Landscaping Rules
3 rules- Weed OrdinancesSome
- Water RestrictionsLight
- Tree TrimmingSome
Food Trucks & Mobile Vendors
1 ruleTrash & Recycling
1 ruleParking Rules
3 rulesProperty Maintenance
1 rule- Property BlightSome
HOA Rules
1 rule- CC&R EnforcementSome