MEP Plans in Los Alamos, CA
Permit-ready mechanical, electrical and plumbing plans for ADUs, garage conversions, additions and single-family homes in Los Alamos (unincorporated Santa Barbara County), prepared for plan check at Santa Barbara County Planning & Development – Building & Safety Division, with Title 24 available in the same order.
Los Alamos project facts we design around
| County | Santa Barbara County (unincorporated) |
|---|---|
| Title 24 climate zone | Climate Zone 5, confirmed by ZIP for every project |
| Electric utility (most addresses) | Pacific Gas and Electric (PG&E) |
| Permits issued by | Santa Barbara County Planning & Development – Building & Safety 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 Los Alamos
Santa Barbara County issued 5 ADU building permits from 2021 through 2025 for addresses in Los Alamos, based on the county's reports to the state. Permits went from 1 in 2021 to 1 in 2025.
| 2021 | 2022 | 2023 | 2024 | 2025 |
|---|---|---|---|---|
| 1 | 1 | 1 | 1 | 1 |
Source: California Department of Housing and Community Development, Annual Progress Report data (ADU building permits by year).
Title 24 in Climate Zone 5
- 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 0.585) / 1000 + 1.06; no PV is required if that is under 1.8 kWdc, which for a single ADU works out to about 1,265 sq ft or smaller.
Climate Zone 5 requirements in full →
HVAC design for Los Alamos
The HVAC is sized from a room-by-room Manual J using the outdoor design conditions for the address, in Climate Zone 5's coastal, marine-influenced climate. Right-size the heat pump from a real Manual J instead of a tonnage guess.
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 |
|---|---|---|---|
| Santa Maria | CZ 5 | Pacific Gas and Electric (PG&E) | 2,199 |
| Santa Barbara | CZ 6 | Southern California Edison (SCE) | 683 |
| Lompoc | CZ 5 | City of Lompoc Electric Utility | 214 |
| Goleta | CZ 6 | Southern California Edison (SCE) | 134 |
| Guadalupe | CZ 5 | Pacific Gas and Electric (PG&E) | 122 |
| Carpinteria | CZ 6 | Southern California Edison (SCE) | 43 |
Santa Barbara County → · All California cities and communities →
Guides for Los Alamos projects
Ready for permit-ready MEP plans in Los Alamos?
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 Los Alamos; requirements vary by project. Confirm with Santa Barbara County Planning & Development – Building & Safety Division.