ADU Contractors
Dashboard

ADU Builders & Contractors in Mission Viejo, CA

Mission Viejo, CA is home to 298 ADU contractors ready to help. From initial permits to final inspection, these local professionals know Mission Viejo's building codes and can guide your project from concept to completion.

📊 ADU Quick Facts for Mission Viejo

Avg. Cost/sqft

$207-$382

Permit Timeline

60-120 weeks

Max Size

1200 sqft

Setbacks

4ft sides

Top 298 ADU Contractors in Mission Viejo

🏗️
#1ARX DECO LLC

Mission Viejo, CA

Arx Deco Llc — licensed ADU contractor in Mission Viejo, CA. Detached ADU construction.

View Profile📞 (888) 279 3326
🏗️
#2JACOBS JOHN CONSTRUCTION

Mission Viejo, CA

Jacobs John Construction — licensed ADU contractor in Mission Viejo, CA. Detached ADU construction. 49+ years experience.

View Profile📞 (949) 215 6633
🏗️
#3YOUNG JAMES CONSTRUCTION

Mission Viejo, CA

Young James Construction — licensed ADU contractor in Mission Viejo, CA. Detached ADU construction. 48+ years experience.

View Profile📞 (949) 878 8027
🏗️
#4INTELLISPEC PRECISION BUILDERS

Mission Viejo, CA

Intellispec Precision Builders — licensed ADU contractor in Mission Viejo, CA. Detached ADU construction. 19+ years experience.

View Profile📞 (949) 888 0847
🏗️
#5GOOD MEASURE CONSTRUCTION INC

Mission Viejo, CA

Good Measure Construction Inc — licensed ADU contractor in Mission Viejo, CA. Detached ADU construction. 6+ years experience.

View Profile📞 (949) 981 6234
🏗️
#6KING CONSTRUCTION HOME IMPROVEMENTS INC

Mission Viejo, CA

King Construction Home Improvements Inc — licensed ADU contractor in Mission Viejo, CA. Detached ADU construction. 31+ years experience.

View Profile📞 (949) 697 8967
🏗️
#7EVERGREEN CONSTRUCTION CO

Mission Viejo, CA

Evergreen Construction CO — licensed ADU contractor in Mission Viejo, CA. Detached ADU construction. 13+ years experience.

View Profile📞 (949) 842 6886
🏗️
#8TRICOR CONTRACTORS INC

Mission Viejo, CA

Tricor Contractors Inc — licensed ADU contractor in Mission Viejo, CA. Detached ADU construction. 28+ years experience.

View Profile📞 (949) 588 1051
🏗️
#9SKYLIGHT CONSTRUCTION INC

Mission Viejo, CA

Skylight Construction Inc — licensed ADU contractor in Mission Viejo, CA. Detached ADU construction.

View Profile📞 (747) 257 9183
🏗️
#10STUD CONSTRUCTION

Mission Viejo, CA

Stud Construction — licensed ADU contractor in Mission Viejo, CA. Detached ADU construction. 12+ years experience.

View Profile📞 (714) 873 3473
View All 298 Contractors →

💰 How Much Does an ADU Cost in Mission Viejo?

Garage Conversion

$73,500 - $133,500

Converting existing garage to living space

Detached ADU

$157,000 - $332,000

New standalone unit (600-1,200 sqft)

Permit & Fees

$1,105 - $5,105

Plan check, permits, utility connections

* Costs vary based on size, finishes, site conditions, and contractor. Get quotes from multiple Mission Viejo contractors to compare pricing.

❓ Frequently Asked Questions About ADUs in Mission Viejo

How much does it cost to build an ADU in Mission Viejo?▼
The average cost to build an ADU in Mission Viejo ranges from $157,000 to $332,000, or approximately $207 to $382 per square foot. Garage conversions typically cost $73,500 to $133,500.
How long does it take to get an ADU permit in Mission Viejo?▼
The ADU permit process in Mission Viejo typically takes 60 to 120 weeks. California law requires cities to approve or deny ADU permits within 60 days of receiving a complete application.
What are the ADU size limits in Mission Viejo?▼
In Mission Viejo, detached ADUs can be up to 1200 square feet. Attached ADUs are limited to 50% of the primary dwelling or 1,200 sqft, whichever is less. Junior ADUs (JADUs) are limited to 500 sqft and must be within the existing home.
What is the setback requirement for ADUs in Mission Viejo?▼
Mission Viejo requires 4-foot setbacks from side property lines and 4-foot setbacks from rear property lines for new ADU construction. Converted structures (like existing garages) may maintain their current setbacks.
Do I need to provide parking for my ADU in Mission Viejo?▼
No parking is required for ADUs in Mission Viejo if your property is within half a mile of public transit, in a historic district, part of an existing multi-family building, or if the ADU is a garage conversion. Otherwise, one space may be required.

Also See ADU Contractors In

Los Angeles (3215)San Diego (2582)San Francisco (2170)Sacramento (1551)Riverside (925)Fresno (904)Anaheim (784)Irvine (760)

Ready to Build Your ADU in Mission Viejo?

Get free quotes from top-rated local contractors

Find Contractors Now
← View all contractors in California