MEP Plans in Morro Bay, CA
Permit-ready mechanical, electrical and plumbing plans for ADUs, garage conversions, additions and single-family homes in Morro Bay, prepared for plan check at the City of Morro Bay building department, with Title 24 available in the same order.
Morro Bay project facts we design around
| County | San Luis Obispo County |
|---|---|
| Title 24 climate zone | Climate Zone 5, confirmed by ZIP for every project |
| Electric utility (most addresses) | Pacific Gas and Electric (PG&E) |
| Permit review | The City of Morro Bay building department |
| ADU permits issued, 2021–2025 | 98 (#220 of 450 cities) |
| ADU approval timeline | Approve or deny within 60 days of a complete application (state law) |
ADU building activity in Morro Bay
Morro Bay issued 98 ADU building permits from 2021 through 2025, the 220th most among the 450 California cities that reported ADU permits. Permits went from 18 in 2021 to 22 in 2025.
| 2021 | 2022 | 2023 | 2024 | 2025 |
|---|---|---|---|---|
| 18 | 26 | 17 | 15 | 22 |
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 Morro Bay
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.
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 |
|---|---|---|---|
| San Luis Obispo | CZ 5 | Pacific Gas and Electric (PG&E) | 386 |
| Grover Beach | CZ 5 | Pacific Gas and Electric (PG&E) | 257 |
| Nipomo (unincorp.) | CZ 5 | Pacific Gas and Electric (PG&E) | 109 |
| Paso Robles | CZ 4 | Pacific Gas and Electric (PG&E) | 108 |
| Atascadero | CZ 4 | Pacific Gas and Electric (PG&E) | 107 |
| Arroyo Grande | CZ 5 | Pacific Gas and Electric (PG&E) | 78 |
San Luis Obispo County → · All California cities and communities →
Guides for Morro Bay projects
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Start My OrderGeneral guidance, not legal advice. Climate zone and utility are shown for most addresses in Morro Bay; requirements vary by project. Confirm with the City of Morro Bay building department.