ADU Builder in Morgan Hill, CA
Morgan Hill occupies a distinct position in Santa Clara County — far enough south of San Jose to have a genuinely different character (wine country, open land, quieter streets), but close enough via US-101 to draw renters who commute north to work. As housing costs in San Jose and the core Silicon Valley cities have pushed tenants further afield, Morgan Hill has become an increasingly active rental market, with families and working households looking for more space at a price that actually works.
The city’s ADU rules are among the more practical in the county: no minimum lot size, eased parking requirements, and a 1,200 sq ft maximum for detached units. Apex Homes builds ADUs throughout Morgan Hill, managing permits, design, and construction as a complete end-to-end service.
ADU Regulations in Morgan Hill
Morgan Hill follows California’s state ADU framework with a few local specifics — notably a tiered attached ADU size limit based on bedroom count, and a multi-family provision that references percentage of existing units.
Single-family lots (R-1)
- One detached or attached ADU + one Junior ADU (JADU) per lot
- Size — detached: up to 1,200 sq ft
- Size — attached: 1-bedroom up to 900 sq ft; 2-bedroom up to 1,000 sq ft; also capped at 50% of the primary dwelling’s floor area; JADUs up to 500 sq ft
- Setbacks: 4 ft from side and rear property lines
- Height: 16 ft for single-story detached ADUs
- Lot size: no minimum lot size requirement
- Parking: eased requirements — no replacement parking required when converting a garage
Multi-family lots (R-2+)
- Up to 2 detached or attached ADUs per lot
- Each unit may not exceed 25% of existing dwelling units or 1 unit, whichever is smaller
- Same setback and height standards as single-family
The tiered attached ADU limits (900 sq ft for 1-bedroom, 1,000 sq ft for 2-bedroom) are specific to Morgan Hill. Apex confirms which size applies to your design before any plans are prepared.
Build Your ADU in Morgan Hill
Enter your address in ParcelZ to check your lot’s ADU eligibility, buildable area, and compatible floor plans. Free. No account needed.
The Morgan Hill ADU Permitting Process
Morgan Hill handles ADU applications by email PDF submission. Applicants prepare a complete document package and send it directly to the city’s Building Division, rather than using an online portal. Once approved, inspections are scheduled through the city’s eTRakit system. Review typically completes within 60 days, with faster turnaround when using pre-approved or pre-reviewed ADU designs.
Free Feasibility Study
Apex verifies your zoning, checks setbacks, confirms which attached ADU size tier applies to your design, and reviews parking requirements for your specific lot. Because Morgan Hill has no minimum lot size, most residential properties qualify — but setbacks and coverage limits still need to be confirmed.
Select a Floor Plan
Choose from Apex’s ADU designs sized to fit within Morgan Hill’s limits. We’ll match the right plan to your lot based on the feasibility results and your goals; rental income, multi-generational housing, or both.
Permit Package Preparation & Email Submittal
Apex prepares the complete PDF package: site plan, architectural drawings, structural calculations, Title 24 energy compliance, and all required city forms, and submits by email to the Morgan Hill Building Division. A thorough, complete package minimizes correction rounds.
City Review
The city reviews within 60 days under California state law. Apex tracks the review and responds to any plan-check comments on your behalf.
Construction & eTRakit Inspections
After permit issuance, Apex manages the build through all required city inspections (scheduled via eTRakit) and final certificate of occupancy.
Why Build an ADU in Morgan Hill?
Homeowners in Morgan Hill can benefit from additional rental income and increased property value while enjoying flexible multigenerational or home office space. The city’s relaxed ADU rules—no minimum lot size, reduced setbacks, and eased parking requirements—make building simpler, more affordable, and faster than in many neighboring communities.
Have questions? Contact Apex Homes Today
Our team knows Morgan Hill’s zoning, permits, and pricing inside out. Call us for a free, no-pressure conversation about your property. We’ll tell you exactly what’s possible.