Your backyard.
A beautiful new ADU.
Transparent pricing.
Garage conversions. Detached ADUs. Custom designs. Architect-designed, all across Los Angeles.
15 minutes · No obligation
Nine ADU plans.
One clear estimate.
Each Signature Home comes with one clear, all-in project estimate — architect-designed, refined from 126 Los Angeles projects, and priced to the dollar before we break ground. From a 400-square-foot studio to a 1,200-square-foot three-bedroom two-story.
The Wilshire
The Sunset
The Westwood
The Laurel Canyon
The Melrose
The Lincoln
The Fairfax
The Venice
The Culver
A finished home. Not a construction project.
Most ADU builders sell you a quote. We deliver a fully designed home — architect-designed, transparently priced, and backed by nearly a decade of Los Angeles ADU design and permitting.
Transparent Pricing, Always
Your estimate is detailed and agreed before you commit. No change orders for surprises we should have anticipated. No "market conditions" invoices the week before drywall. When we say $329,000, we mean $329,000 — our plans are precise enough to stand behind that estimate from day one.
Built On Site, On Your Lot
Every Signature Home is built on your property by a Los Angeles framing crew — not trucked in from a factory. That means no truck access requirement, no crane staging, no neighborhood lots that don't qualify. If a contractor can build a backyard deck there, we can build a Signature Home there.
The Two-Story Advantage
Three of our nine Signature Homes are full two-story ADUs. No prefab ADU company offers two-story construction — factory and transport constraints don't allow it. On a tight Los Angeles lot, going up instead of out is the difference between a rental and a home.
The certainty of prefab.
The flexibility of custom.
Built for Los Angeles.
Most homeowners building an ADU end up choosing between two compromises. CALI ADU is built to be the third option.
Prefab ADUs
Fast, polished, but constrained.
Factory-built and trucked to your site. Pricing is predictable and timelines are short. But floor plans are locked — usually one or two options — and almost never two stories. Many Los Angeles lots can't accept the truck access or crane footprint required to set the modules. The home that arrives is the home you got.
Custom Construction
Flexible, but uncertain.
An architect-designed home built one-of-one for your lot. The floor plan is whatever you want it to be. But the price is an estimate that becomes a real number eight months later, and the timeline depends on how many trades the contractor can keep moving. Custom ADU projects in Los Angeles routinely come in well over the original budget.
CALI ADU Signature Homes
The product approach to a custom build.
Nine architect-designed floor plans, refined from 126 Los Angeles ADU projects. Three are full two-story homes. All are built on site for your lot — no truck access required. Your estimate is agreed before you commit, and the build schedule is set in writing with the licensed general contractor. And you'll have walked through your home in our 3D model before construction starts.
See the Signature Homes →
See your ADU. In your backyard.
Pick any model, see it placed on your actual lot to scale, and walk through the interior in 3D — all in a 15-minute Backyard Review.
Architect-designed · Transparent pricing · Predictable schedule
Four steps. One team. One price.
Backyard Review
A 15-minute video call where we place any Signature Home on your actual lot so you can see exactly how it fits. We cover setbacks, placement options, and which models work for your property.
You receive a site mockup showing your ADU in your backyard.
Design & Contract
Choose your model, interior finishes, and exterior style. We finalize the site plan, coordinate the structural engineering, and lock your design and scope into a clear written agreement.
You receive a finalized site plan and a clear written design-and-scope agreement.
Permitting
We submit, track, and expedite your permit through your city's building department. You pay city fees at cost — no markup. Our pre-engineered plans mean fewer corrections and faster approvals.
You receive an approved building permit.
Construction & Keys
One project manager coordinates the independent licensed general contractor from groundbreaking to final walkthrough. Weekly updates, with a clear schedule agreed in writing before work begins.
You receive the keys to your finished ADU.
More home.
Same footprint.
Three of our nine Signature Homes — The Fairfax, The Venice, and The Culver — are full two-story ADUs. On a Los Angeles lot where every square foot of yard is precious, going up instead of out means a larger ADU, more yard, and more rental or resale value.
CALI ADU is the only Los Angeles ADU company offering a full two-story lineup at transparent pricing. No prefab ADU company can build two-story — factory and transport constraints don't allow it. If you want a two-story ADU in LA, your options are fully custom or us.
One of one.
Most of our clients find the right fit in the Signature ADU Plan lineup. Occasionally, a lot, a vision, or a lifestyle calls for something entirely its own.
For a small number of clients each year, we design and manage the build of fully custom ADUs — the same team, the same standard of craft, shaped to your exact brief. The 1,200 sqft Mediterranean two-story above, with its 600 sqft rooftop deck on a tight West LA lot, is one example. Custom projects begin with a design fee and a conversation. If your project is a fit, we will tell you. If a Signature ADU plan would serve you better, we will tell you that too.
Built across Los Angeles.
Designed and built across Los Angeles — every neighborhood, every lot condition, every style.
In their words.
"We had a TERRIFIC experience with Charlie at CALI ADU. He was efficient, communicative and provided us with great blueprints for our garage conversion… Highly recommend working with him."
"I am so happy we chose CALI ADU to design and build our garage ADU… The consistent communication is so appreciated, and the outstanding quality of their work is exactly like the pictures."
"Charlie is professional, and he was always accessible when we had questions. He is adaptable and patient with changes. My wife and I highly recommend Charlie."
"Their design was perfect for the property and my budget, they kept me updated on the progress and promptly responded to my inquiries."
"We love it! The work crews were outstanding and the quality of the materials and craftsmanship is excellent."
"Highly recommend if you want a boutique experience!"
Before you book a call.
How does CALI ADU's pricing work?
How long does an ADU take from start to finish?
What happens if construction runs late?
Can I use an ADU as a rental?
Do I qualify for an ADU on my lot?
Can I customize a Signature Home?
See your ADU. In your backyard.
Pick a Signature Home, see it placed on your actual lot, and walk through the interior in 3D. 15-minute Backyard Review. No commitment required.
Architect-designed · Transparent pricing · Predictable schedule