ADU Company in Aliso Viejo, CA
Adding an ADU in Aliso Viejo means working with a housing stock that was almost entirely master-planned between the mid-1980s and late 1990s. Most lots sit under HOA CC&Rs governed by the Aliso Viejo Community Association (AVCA), and many homes are attached townhomes or condos, which pushes viable projects toward JADUs and garage conversions. We’re Lodgewick ADU Builders, the ADU company of the Kingswell family. If you’re weighing an accessory dwelling unit – a small, separate living space on your existing property – call us at (254) 602-5618 for a free estimate with a written price before any work starts.
Why Aliso Viejo Homes Are Different
Aliso Viejo doesn’t look like other Orange County cities when you walk a neighborhood. The housing stock is dominated by attached townhomes, stacked condos, and smaller-lot single-family homes built in planned-community phases. That changes the ADU conversation immediately. On many lots, a detached backyard unit simply doesn’t fit, so the work shifts to a JADU – a Junior ADU carved out of the existing home’s footprint – or a garage conversion. And many of those garages are tandem-style or share a common wall, which means a structural evaluation comes before any framing or drywall.
The HOA layer is just as real. AVCA’s Architectural Review Committee runs a mandatory parallel approval process on top of city permitting. California’s AB 3182 stops HOAs from banning ADUs outright, but the ARC still reviews design, materials, and placement on its own timeline. We’ve seen projects get city approval and then sit for months because the ARC application wasn’t filed at the same time. Submitting both concurrently is the single fastest way to keep an Aliso Viejo project moving.
Hillside and canyon-edge lots add another variable. Homes adjacent to Aliso and Wood Canyons Wilderness Park can fall within Wildland-Urban Interface fire zones, which triggers ignition-resistant construction standards – Class A roofing, ember-resistant venting, fire-rated assemblies. That’s a meaningful cost difference from flat-lot work, and it’s the kind of thing that only shows up when someone knows the area.
Our Main Aliso Viejo Services
Most Aliso Viejo homeowners we talk to are deciding among three paths: a home addition, a garage conversion, or a dedicated ADU build. Each comes with its own local realities.
Home Addition Contractor in Aliso Viejo
A home addition in Aliso Viejo often means working within the existing footprint or a modest extension, since lots here run smaller than what you’d find in Laguna Niguel or Mission Viejo. Attached-wall conditions are common, so we check sightlines, setbacks, and shared walls before drawing plans. On canyon-edge lots, fire-zone materials can push a project toward stucco and composite assemblies. If you’re thinking about adding a bedroom, a second living area, or a dedicated home office, start with Home Addition Contractor in Aliso Viejo for the full breakdown.

Garage Conversion Contractor in Aliso Viejo
Garage conversions make particular sense in Aliso Viejo because so many homes have tandem or shared-wall garages that aren’t practical for parking two cars anyway. Converting that space into a studio or one-bedroom unit puts the square footage you already own to work. The catch: many of these garages need structural evaluation before conversion, especially where a common wall is involved. We handle that assessment up front and put the price in writing before work begins. See Garage Conversion Contractor in Aliso Viejo for specifics on what a conversion costs and how long it takes here.

ADU Builders in Aliso Viejo
A detached ADU is the dream for many Aliso Viejo homeowners, but lot size and HOA design review determine whether it’s realistic. Where it is, we work with prefab manufacturers like Dvele and Cover to shorten the on-site timeline. Where it isn’t, a JADU within the existing footprint is often the smarter move, and it usually clears AVCA review faster because there’s no new structure. Russ Delmar leads our team, and he’s walked enough AVCA submittals to know what the ARC flags and what it lets through. Read ADU Builders in Aliso Viejo to compare paths and realistic timelines.

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 Aliso Viejo
We work hands-on with leading ADU brands and materials including Cover, Dvele, and Boxabl, matched to each Aliso Viejo lot, budget, and HOA requirement. Turnaround varies by brand and custom spec, but having a contractor who knows these systems well means fewer surprises in the field. Learn more on our brands page.
Pricing for ADU Company in Aliso Viejo, CA
| Service | Typical range in Aliso Viejo |
|---|---|
| JADU (Junior ADU within existing footprint) | $65,000 – $125,000 |
| Garage conversion to studio ADU | $90,000 – $150,000 |
| Garage conversion to one-bedroom ADU | $110,000 – $175,000 |
| Detached ADU (prefab, 1-bedroom) | $165,000 – $240,000 |
| Detached ADU (custom, 1-bedroom) | $220,000 – $310,000 |
| Detached ADU (custom, 2-bedroom) | $260,000 – $380,000 |
| Home addition (200 – 400 sq ft, attached) | $120,000 – $220,000 |
| Home addition (400 – 800 sq ft, attached) | $200,000 – $380,000 |
In Aliso Viejo, the big price movers are Wildland-Urban Interface fire-zone requirements on canyon-edge lots, the structural work tied to tandem or shared-wall garages, and AVCA design-review changes that can add materials or slow a permit. Every estimate we give is a written price before any work starts – no change orders at the door.
Neighborhoods We Serve in Aliso Viejo
We work across Aliso Viejo’s planned neighborhoods, from the attached-home communities near the Town Center to the single-family pockets along the canyon edges. HOA rules and lot types change from one tract to the next, so we come out, look at your specific parcel, and tell you straight what’s feasible.
- Glenwood
- Westridge
- Laguna Audubon
- Canyon View
- Vantis
Service Area – Cities Near Aliso Viejo
Lodgewick ADU Builders serves Aliso Viejo and the surrounding South Orange County communities. If you’re in a neighboring city, you’ll find the same written-price commitment and the same 365-Day Done Right Promise. Nearby coverage includes Laguna Hills, CA, Laguna Woods, CA, Laguna Niguel, CA, and Laguna Beach, CA.
Serving Aliso Viejo, CA - Our Local Coverage Area
We’re based in the Aliso Viejo 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 Aliso Viejo
Most Aliso Viejo projects start with a site visit within about a week, then we prepare plans and written pricing. The real variable here is AVCA’s ARC review, which runs on its own timeline. We submit ARC applications concurrently with city plans so you’re not stuck waiting on one while the other sits idle. Call (254) 602-5618 to schedule a free estimate.
Yes. California’s AB 3182 prevents AVCA from banning ADUs outright, but the Architectural Review Committee still runs a mandatory parallel approval process. Skipping it or treating it as an afterthought is the most common delay we see in Aliso Viejo. We handle both the city and HOA submittals from day one.
It’s our written guarantee on every project: if the work isn’t done right within 365 days, we come back and make it right at no charge. The promise is in writing before work begins, not after. That’s The Kingswell Way – say the price first, show up in the window given, leave the site clean, and stand behind the work. Call (254) 602-5618 to talk through your project.
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 Aliso Viejo Customers Say
"The ADU came out beautiful and the permitting, which terrified me, was handled start to finish. They kept me updated every week so I was never wondering what was happening."
- Shauna Mills"A whole backyard ADU from scratch. Terrified me going in, but they kept me updated weekly and there were no nasty surprises. Quality work and a fair price."
- Noreen Fletcher"Built a backyard unit for my mother in law. They handled the permits, gave me a real timeline, and stuck to it within a few days. The written price is what we paid, which anyone who's done construction knows is rare."
- Dennis Fairchild