Structure Height Limits: Hayward vs Livermore
How do structure height limits rules compare between Hayward, CA and Livermore, CA?
Hayward and Livermore have similar restriction levels.
Hayward, CA
Alameda County
Hayward limits single-family residential structures to 30 feet and 2 stories in most RS zones. Downtown and mixed-use districts permit taller buildings per the Hayward Downtown Specific Plan.
View full Hayward rules →Livermore, CA
Alameda County
Livermore residential height limits are typically 30 ft / 2 stories in RL and RS zones; detached ADUs allowed up to 16-25 ft per state law.
View full Livermore rules →Key Facts Comparison
| Fact | Hayward | Livermore |
|---|---|---|
| RS max | 30 ft and 2 stories | - |
| Accessory | 15 ft typical | - |
| ADU | 16 ft baseline state law | - |
| Downtown | Up to 105 ft+ | - |
| Airport zone | FAA Part 77 limits | - |
| RL/RS Max | - | 30 ft / 2 stories |
| RM Max | - | 35 ft |
| Detached ADU | - | 16-25 ft state law |
| Features | - | +3-5 ft with screening |
| Hillside | - | Ridgeline protection |
Highlighted rows indicate differences between cities.
Hayward FAQ
How tall can I build my ADU?
State law baseline is 16 feet, with 18-25 feet allowed near transit or for two-story additions per AB 2221 and SB 897.
Do rooftop HVAC units count toward height?
Mechanical equipment can exceed the limit if properly screened and in line with specific zoning exceptions.
Livermore FAQ
Can I build a 3-story house?
Not in most Livermore residential zones — 2 stories / 30 ft is the typical cap. Variances are rarely granted.
How tall can my ADU be?
Detached single-story ADU up to 16 ft; up to 18-25 ft if within half-mile of transit or on multifamily lot.
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