MEP Plans in Magalia, CA
Permit-ready mechanical, electrical and plumbing plans for ADUs, garage conversions, additions and single-family homes in Magalia (unincorporated Butte County), prepared for plan check at Butte County Department of Development Services – Building Division, with Title 24 available in the same order.
Magalia project facts we design around
| County | Butte County (unincorporated) |
|---|---|
| Title 24 climate zone | Climate Zone 16, confirmed by ZIP for every project |
| Electric utility (most addresses) | Pacific Gas and Electric (PG&E) |
| Permits issued by | Butte County Department of Development Services – Building Division |
| ADU permits issued, 2021–2025 | 5 |
| ADU approval timeline | Approve or deny within 60 days of a complete application (state law) |
ADU building activity in Magalia
Butte County issued 5 ADU building permits from 2021 through 2025 for addresses in Magalia, based on the county's reports to the state. Permits went from 1 in 2021 to 2 in 2025.
| 2021 | 2022 | 2023 | 2024 | 2025 |
|---|---|---|---|---|
| 1 | 2 | not reported | not reported | 2 |
Source: California Department of Housing and Community Development, Annual Progress Report data (ADU building permits by year).
Title 24 in Climate Zone 16
- Windows: U-factor 0.27 or lower (no SHGC limit in this zone), with total window area up to 20% of floor area.
- Solar PV sized by the CEC formula kW = (floor area x 0.59) / 1000 + 1.22; no PV is required if that is under 1.8 kWdc, which for a single ADU works out to about 983 sq ft or smaller.
Climate Zone 16 requirements in full →
HVAC design for Magalia
The HVAC is sized from a room-by-room Manual J using the outdoor design conditions for the address, in Climate Zone 16's mountain climate with cold, snowy winters. Cold-climate heat pump sized for the local winter design temperature.
Electrical service from Pacific Gas and Electric (PG&E)
If the load calculation shows you need a service upgrade, a second meter or a relocated service, Pacific Gas and Electric (PG&E) handles that through its Your Projects portal, separately from the building permit.
ADU electrical service with Pacific Gas and Electric (PG&E) →
Plumbing and sewer
The plumbing plan shows the route, slope and cleanouts of the connection to the existing sewer lateral or septic system.
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 |
|---|---|---|---|
| Chico | CZ 11 | Pacific Gas and Electric (PG&E) | 218 |
| Durham (unincorp.) | CZ 11 | Pacific Gas and Electric (PG&E) | 14 |
| Oroville | CZ 11 | Pacific Gas and Electric (PG&E) | 11 |
| Forest Ranch (unincorp.) | CZ 16 | Pacific Gas and Electric (PG&E) | 6 |
Guides for Magalia projects
Ready for permit-ready MEP plans in Magalia?
Upload your architectural plans, get an instant flat price, and receive PDF plans in about 5 business days.
Start My OrderGeneral guidance, not legal advice. Climate zone and utility are shown for most addresses in Magalia; requirements vary by project. Confirm with Butte County Department of Development Services – Building Division.