Rules for ZIP Code 94028
Portola Valley, CA · San Mateo County
41 local rules on file for this area.
ZIP code 94028 is governed by the city of Palo Alto, CA, home to about 46% of the ZIP's residents. The ordinances shown below come from Palo Alto's own code and apply to residential and commercial properties within its limits, from noise restrictions and parking to building permits and animal regulations.
ZIP codes do not follow city lines. 94028 also covers:
- town of Portola Valley~32% of residents · not covered yet
- unincorporated San Mateo County~23% of residents
- Ladera (community)~11% 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 94028 based on Palo Alto ordinances.
Home Business
1 rule- Home DaycareSome
Short-Term Rentals
1 rule- Occupancy LimitsLight
Data Centers & Crypto Mining
2 rulesHOA Rules
4 rulesProperty Maintenance
2 rulesFire Regulations
3 rules- Brush ClearanceSome
- Smoke DetectorsSome
- Wildfire ZonesSome
Fence Regulations
1 ruleSoliciting & Door-to-Door
2 rulesParking Rules
4 rulesAnimal Ordinances
3 rulesNoise Ordinances
1 rule- Leaf Blower RulesHeavy
Landscaping Rules
5 rules- Weed OrdinancesSome
- Water RestrictionsSome
- Native PlantsSome
- Tree TrimmingSignificant
- Artificial TurfSome
Sign Regulations
1 rule- Political SignsSome
Building Safety
1 rule- Lead PaintSome
Food Trucks & Mobile Vendors
1 rule- Vending ZonesSome
Rental Property Rules
3 rules- Just Cause EvictionFew
- Rent ControlFew
- Rental RegistrationSignificant
Swimming Pools & Spas
2 rulesTrash & Recycling
2 rulesCannabis Regulations
1 rule- Home CultivationHeavy