ADU CONTRACTOR IRVINE
Licensed ADU builder serving Irvine and Orange County. We navigate HOA design review and city permits so you don't have to.
Architecture · Engineering · HOA Submittals · Permits · Construction — All Under One Roof · CSLB #1160701
Why Irvine Homeowners Choose Payless4ADU
We're a licensed Southern California ADU contractor (CSLB #1160701) that handles architecture, engineering, permits, and construction under one roof. No subcontractor shuffle. No surprise invoices. Just a straight answer on what your project will cost and how long it will take.
About our team- HOA design review specialists — we prepare the full submittal package, not just the city permit set.
- California state law (Civil Code §4751) protects your right to build an ADU despite HOA restrictions.
- Fixed-price contracts — no time-and-materials surprises.
- In-house architecture and structural engineering under one roof.
- Strong track record in Northwood, Woodbridge, University Park, and Turtle Rock.
- Se Habla Español — bilingual staff available.
Irvine ADU Permit Rules at a Glance
Every city in Southern California layers its own standards on top of California state ADU law. Here's what matters most for Irvine homeowners.
Rear & Side Setback
4 ft minimum (detached ADU)
Max Height
16 ft (standard zones)
Max Size
Up to 1,200 sq ft
JADU Max Size
500 sq ft (within existing structure)
Permit Timeline
8–14 weeks (city); add 4–8 weeks for HOA review
HOA Restrictions
HOAs cannot ban ADUs (CA Civil Code §4751)
Replacement Parking
Not required for garage conversions (state law)
Owner-Occupancy
Not required (state law preempts)
Permit Fees
Approx. $5,000–$12,000 + HOA application fees
ADU Cost Estimates in Irvine
Ranges include architecture, engineering, permits, and construction. They exclude landscaping, utility connection fees, and furnishings.
| ADU Type | Estimated Cost |
|---|---|
| Junior ADU (interior conversion) | $50,000 – $90,000 |
| Garage conversion | $90,000 – $140,000 |
| Detached ADU (400–600 sq ft) | $160,000 – $230,000 |
| Detached ADU (800–1,200 sq ft) | $230,000 – $370,000 |
Irvine 1BR ADUs typically rent for $2,300–$3,000/month. Proximity to UC Irvine and major employers keeps vacancy rates consistently low and rental demand strong.
Ready to Build in Irvine?
Get a free ADU site analysis for your Irvine property. We'll assess your lot, review HOA constraints, and give you a straight answer on cost and timeline — no pressure, no BS.
Licensed · CSLB #1160701 · Se Habla Español