MEP Plans in Anaheim, CA
Permit-ready mechanical, electrical and plumbing plans for ADUs, garage conversions, additions and single-family homes in Anaheim, prepared for plan check at the City of Anaheim building department, with Title 24 available in the same order.
Anaheim project facts we design around
| County | Orange County |
|---|---|
| Title 24 climate zone | Climate Zone 8, confirmed by ZIP for every project |
| Electric utility (most addresses) | Anaheim Public Utilities |
| Permit review | The City of Anaheim building department |
| ADU permits issued, 2021–2025 | 1,713 (#10 of 450 cities) |
| ADU approval timeline | Approve or deny within 60 days of a complete application (state law) |
ADU building activity in Anaheim
Anaheim issued 1,713 ADU building permits from 2021 through 2025, the 10th most among the 450 California cities that reported ADU permits. Permits went from 157 in 2021 to 441 in 2025.
| 2021 | 2022 | 2023 | 2024 | 2025 |
|---|---|---|---|---|
| 157 | 337 | 349 | 429 | 441 |
Source: California Department of Housing and Community Development, Annual Progress Report data (ADU building permits by year).
Title 24 in Climate Zone 8
- Windows: U-factor 0.30 or lower and solar heat gain coefficient (SHGC) 0.23 or lower, with total window area up to 20% of floor area (west-facing up to 5%).
- Whole-house fan required (at least 1.5 cfm per square foot of floor area); units of 500 sq ft or less are exempt.
- Solar PV sized by the CEC formula kW = (floor area x 0.586) / 1000 + 1.37; no PV is required if that is under 1.8 kWdc, which for a single ADU works out to about 734 sq ft or smaller.
Climate Zone 8 requirements in full →
HVAC design for Anaheim
The California Energy Commission's design-day data for Anaheim gives the outdoor conditions a Manual J load calculation uses: a summer design temperature of 90°F and a winter design temperature of 32°F.
| Summer design (1%) | 90°F dry bulb / 68°F wet bulb |
|---|---|
| Winter design (median of extremes) | 32°F |
| Daily temperature range | 26°F |
| Elevation | 158 ft |
Both seasons matter here. The heat pump is usually sized for the 90°F cooling condition and then checked to confirm it still covers the heating load at 32°F.
Electrical service from Anaheim Public Utilities
If the load calculation shows you need a service upgrade, a second meter or a relocated service, Anaheim Public Utilities handles that through its Meter Spot Report process, separately from the building permit.
ADU electrical service with Anaheim Public Utilities →
Plumbing and sewer
The plumbing plan shows the route, slope and cleanouts of the connection to the existing sewer lateral.
Pricing is flat statewide: ADU plans from $995, full ADU MEP package from $2,295, Title 24 add-on $240. See what's in a complete ADU MEP set.
Nearby places compared
| Place | Climate zone | Electric utility | ADU permits 2021–25 |
|---|---|---|---|
| Fullerton | CZ 8 | Southern California Edison (SCE) | 2,171 |
| Garden Grove | CZ 8, 6 | Southern California Edison (SCE) | 2,046 |
| Santa Ana | CZ 8 | Southern California Edison (SCE) | 956 |
| Westminster | CZ 6 | Southern California Edison (SCE) | 908 |
| Huntington Beach | CZ 6 | Southern California Edison (SCE) | 437 |
| Laguna Beach | CZ 6 | Southern California Edison (SCE) | 432 |
Guides for Anaheim projects
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Start My OrderGeneral guidance, not legal advice. Climate zone and utility are shown for most addresses in Anaheim; requirements vary by project. Confirm with the City of Anaheim building department.