ADU Company in Irvine, CA
An ADU in Irvine is one of the smartest ways to add living space on a lot you already own, but Irvine is not like neighboring cities. The housing stock is almost entirely master-planned tract construction, most of it HOA-governed under Irvine Company-era CC&Rs, and that changes how every project is designed, priced, and permitted. Lodgewick ADU Builders works across Irvine’s villages, from Woodbridge to the Great Park Neighborhoods, and we put every price in writing before work begins. If you’re weighing an ADU, a garage conversion, or a home addition in Irvine, call (254) 602-5618 and we’ll walk through what’s possible on your specific lot.
Why Irvine Homes Are Different
Irvine’s housing stock is dominated by post-1970 master-planned construction, organized into distinct villages: Woodbridge, Turtle Rock, University Park, Northwood, and the newer Great Park Neighborhoods. Most homes are stucco with concrete tile roofs, built on standardized, often modest lots. That matters for ADU work, because rear-yard depths in the older villages frequently limit detached ADU footprints. In the 1980s-90s attached product, courtyard and zero-lot-line layouts are common, which makes garage-conversion JADUs, or junior accessory dwelling units, the most practical path to new living space. The bigger constraint is architectural review: virtually every residential neighborhood in Irvine operates under HOA design committees that require ADU exteriors to match the primary home’s exact palette, roof material, and window style. California state law (AB 670) prevents HOAs from outright prohibiting ADUs, but the dual-approval process, city permit plus HOA sign-off, is the defining reality of Irvine work. Builders who work mainly in non-HOA cities are routinely surprised by it. We’re not.
Our Main Irvine Services
Most Irvine homeowners call us about three things: adding square footage to the main house, converting a garage into legal living space, and building a detached or attached ADU from the ground up. Each has its own page with pricing, timelines, and the Irvine-specific details.
Home Addition Contractor in Irvine
Home additions in Irvine are shaped by the same master-planned grid that defines the rest of the city. Most additions we build are rear-yard or second-story expansions on standard village lots, and the HOA architectural committee reviews the roofline, stucco texture, and window style against the original elevation before the city even gets to structural review. We handle the design drawings, the HOA submittal, and the permit package as one process, so the addition actually matches the house instead of looking pasted on. Read more on Home Addition Contractor in Irvine.
Garage Conversion Contractor in Irvine
Garage conversions in Irvine are unusually viable because so many Woodbridge and University Park homes have single-car garages that are undersized for modern vehicles. Converting one into a JADU, a junior ADU under 500 square feet, is often the fastest path to rental income or multigenerational space. The catch is Irvine-specific: HOA architectural guidelines still require the garage-door bay to be infilled with stucco texture, paint color, and trim profile that exactly match the original elevation. A mismatched infill is the number-one reason these projects get rejected in design review. Full details on Garage Conversion Contractor in Irvine.
ADU Builders in Irvine
Detached and attached ADUs in Irvine require navigating the city permit process and the HOA architectural committee at the same time, and the order matters. We submit the HOA design package first, get sign-off in writing, then move through the city review. Prefab manufacturers like Abodu and Cover are often a strong fit for Irvine’s standardized lots, because their panelized systems install quickly on the flat, mild-climate sites common here. We match the ADU type, detached, attached, or prefab, to your lot geometry and budget. See ADU Builders in Irvine for the full scope.
What happens when you call
- 1
A real person answersNo phone trees - you reach a local pro.
- 2
You get an upfront price rangeHonest numbers before anyone is dispatched.
- 3
A background-checked tech heads outLicensed & insured, dispatched right away.
- 4
You approve before work beginsNothing starts until you say go.
Brands We Service in Irvine
We work hands-on with several established ADU and building-material brands, including Abodu, Cover, and Dvele, and we recommend them only when the lot calls for it. Parts and materials are ordered to our local Irvine project schedules, so there’s no mystery about lead times. Learn more on our brands page.
Pricing for ADU Company in Irvine, CA
| Service | Typical range in Irvine |
|---|---|
| Detached ADU (studio) | $95,000 – $145,000 |
| Detached ADU (1 bed / 1 bath) | $125,000 – $185,000 |
| Detached ADU (2 bed / 2 bath) | $185,000 – $290,000 |
| Attached ADU (1 bed / 1 bath) | $105,000 – $165,000 |
| Attached ADU (2 bed / 1 bath) | $135,000 – $205,000 |
| Garage conversion (JADU, under 500 sq ft) | $65,000 – $110,000 |
| Garage conversion (full ADU, 500+ sq ft) | $110,000 – $175,000 |
| Home addition (single room) | $70,000 – $120,000 |
| Home addition (primary suite) | $110,000 – $180,000 |
| Second-story addition | $185,000 – $320,000 |
What pushes a price toward the top of these Irvine ranges? HOA-mandated exterior matching is one factor, because custom stucco color matching, roof tile sourcing, and window-style replication add materials and review time. Fire-hardening requirements matter too: properties along the eastern edge near Shady Canyon and the Lomas Ridge interface fall within Orange County’s High Fire Hazard Severity Zones, triggering ember-resistant venting and ignition-resistant siding. Before any work starts, you get a written price. That number does not change at the door, and it’s part of the 365-Day Done Right Promise, our written guarantee delivered on every project.
Neighborhoods We Serve in Irvine
Our crews work across the full Irvine grid, from the older villages to the newer Great Park Neighborhoods, and we’re scheduling projects throughout the area every week. Typical lead time from signed paperwork to first day on site is two to four weeks, depending on permit and HOA review queues.
- Woodbridge
- Turtle Rock
- University Park
- Northwood
- Great Park Neighborhoods
Service Area – Cities Near Irvine
We’re based in the broader Orange County metro and run Irvine projects locally. We also serve homeowners in the surrounding cities: Tustin, CA, Santa Ana, CA, Orange, CA, and Lake Forest, CA. If you’re in one of these cities and weighing an ADU or addition, the same written-price promise applies.
Serving Irvine, CA - Our Local Coverage Area
We’re based in the Irvine area and know this community well. Use the map below to see our service coverage - if you’re nearby, we can almost certainly help.
FAQs About ADU Company in Irvine
Most Irvine HOA architectural committees meet monthly, and submittals must be complete or they’ll push you to the next cycle. We typically see 30 to 60 days for sign-off, then the city permit runs in parallel or after, depending on the scope. Call (254) 602-5618 and we’ll give you a realistic timeline for your specific village.
Yes. We prepare the HOA design package, submit it, and track it through architectural committee review. We also prepare and submit the city permit set, including any fire-hardening documentation if your property is in a High Fire Hazard Severity Zone. You get one written price for the whole project.
It does, and it’s in writing before we start. The Kingswell Guarantee means a written price first, a real arrival window, a clean job site, and a written guarantee on every project. If the work isn’t right within the first 365 days, we come back and make it right at no charge. Call (254) 602-5618 to schedule a free estimate.
What happens when you call
- 1A real person answersNo phone trees - talk to a local adu pro.
- 2You get an upfront price rangeHonest numbers before anyone is dispatched. No surprises.
- 3We come out and measureLicensed & insured, at a time that suits you - the visit and the quote are both free.
- 4You get the price in writingLine-itemed, yours to keep, and nothing starts until you say go.
What Irvine Customers Say
"I was nervous about adding on but they walked me through every step and every cost before we started. No surprise change orders halfway through like I'd heard horror stories about."
- Eleanor Pratt"Junior ADU conversion inside the house. They protected the rest of our place with plastic and daily cleanup. Done nearly on schedule and on the number they quoted."
- Sabrina Veld"Garage conversion into an office and guest room. Fair written price, finished close to on schedule, and they fixed a small drywall crack under warranty months later without any hassle."
- Diana Cho