CSLB Lic. #1144906 — Licensed & Insured
Room Additions & ADUs in Anaheim
& Orange County
Adding square footage to your Anaheim or Orange County property is one of the best investments you can make — and one of the most complex projects to execute without the right contractor. Ulloa Construction manages the full scope of room additions and ADU construction: architectural planning, permit acquisition from your local building department, foundation work, framing, MEP rough-in, drywall, and complete finish work. We design additions that integrate seamlessly with your existing home's roofline, exterior, and interior flow. Our team holds CSLB License #1144906 and has deep experience with Orange County's seismic requirements and ADU permitting process.
Serving all of Orange County — from Anaheim to San Clemente and everywhere in between.
What's Included in Our Room Additions & ADUs Service
- Site assessment, design consultation, and architectural planning support
- Permit acquisition with city building department
- Foundation design and concrete work (slab, stem wall, or raised)
- Framing, sheathing, and roofline tie-in to existing structure
- Electrical, plumbing, and HVAC rough-in and finish
- Insulation, drywall, texture, and paint
- Flooring, trim, doors, and windows to match or complement existing
- ADU kitchen and bathroom construction (full build-out)
How It Works
Simple Steps.
No Surprises.
Step 01
Free Consultation
We visit your home, assess the scope, and discuss your vision — at no cost and no obligation.
Step 02
Custom Proposal
You receive a detailed written estimate covering materials, timeline, and total cost. No hidden fees, no surprises.
Step 03
Expert Build
Our licensed OC crew gets to work with daily progress updates and strict quality checkpoints at every stage.
Step 04
Final Walkthrough
We walk through every detail with you before considering the job complete. Your satisfaction is the standard.
Step 01
Free Consultation
We visit your home, assess the scope, and discuss your vision — at no cost and no obligation.
Step 02
Custom Proposal
You receive a detailed written estimate covering materials, timeline, and total cost. No hidden fees, no surprises.
Step 03
Expert Build
Our licensed OC crew gets to work with daily progress updates and strict quality checkpoints at every stage.
Step 04
Final Walkthrough
We walk through every detail with you before considering the job complete. Your satisfaction is the standard.
See the Transformation
Drag the slider to compare — real work by our crew in Orange County.
Why Choose Ulloa Construction
20+ Years Experience
Two decades serving Anaheim and Orange County homeowners with proven craftsmanship.
OC Licensed & Insured #1144906
CSLB License #1144906, full general liability, and workers' compensation on every project.
Seismic Code Specialists
All work meets California seismic requirements — critical for Orange County remodels and additions.
Get a Free Room Additions & ADUs Estimate
Fill out the form and we'll be in touch within 24 hours. No obligation, no pressure.
Ready to Start Your Room Additions & ADUs?
Call (714) 487-1860 or fill out the form for a free, no-obligation estimate.