ADU in Santa Clarita - One Fixed Price, Permits Handled
We handle the design, the engineering, and the city permit, then build it. One contract, one crew, one accountable point of contact. Free feasibility check on your lot before you commit.
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Our ADU Services
From garage conversions and junior ADUs to brand-new detached cottages and full site prep, we handle every phase of your ADU journey under one roof.
ADU Design & Permitting
Professional adu design & permitting service. Licensed & insured with a satisfaction guarantee on every job.
ExploreGarage Conversion ADU
Professional garage conversion adu service. Licensed & insured with a satisfaction guarantee on every job.
ExploreNew Detached ADU
Professional new detached adu service. Licensed & insured with a satisfaction guarantee on every job.
ExploreJunior ADU & Interior Conversion
Professional junior adu & interior conversion service. Licensed & insured with a satisfaction guarantee on every job.
ExploreADU Site Prep & Utilities
Professional adu site prep & utilities service. Licensed & insured with a satisfaction guarantee on every job.
ExploreOur Work in Santa Clarita
A look at recent adu projects across Santa Clarita and surrounding areas.
ADUs Built With the Care of a Custom Home
We've watched Santa Clarita grow for years, and we understand what it means to add a structure to a neighborhood where families have put down roots. That's why we approach every ADU - whether it's a 400-square-foot junior unit or a fully detached two-bedroom cottage - with the same deliberate craftsmanship we'd bring to building our own home.
Our team isn't a rotating cast of subcontractors. We have long-standing relationships with the tradespeople we trust, and we stay on-site and accountable from groundbreaking to your final walkthrough. Quality isn't a checkbox for us - it's the standard every project is measured against.
See Our Work
Deep Santa Clarita Roots, Proven ADU Experience
Navigating ADU regulations in the City of Santa Clarita requires more than a generic knowledge of California ADU law - it requires knowing the specific zoning overlays, utility connection requirements, and local building department preferences that affect your particular parcel. We've built that knowledge project by project, right here in the SCV.
When you work with us, you're not explaining your neighborhood to someone who's never seen it. We know the streets, the lot challenges, and the inspectors. That local familiarity saves you time, reduces permit friction, and means the advice we give you is grounded in real experience - not guesswork.
Talk to a Local Expert
What Homeowners Say
Projects across Santa Clarita and surrounding communities.
"Every allowance was itemised at the start, so the finish selections did not turn into a surprise at the end."
"The rental income has covered the payment since the second month. They were realistic about the numbers rather than optimistic."
"They walked us through setbacks and utility capacity before we paid anything, and told us one of our two options was not going to get approved."
"The permit set and the build were one contract with one number. Our neighbours used two firms and spent a year watching them blame each other."
A Clear Path From Vision to Move-In Day
We've refined every step of the ADU process so Santa Clarita homeowners always know what's happening, what's next, and who to call.
Discovery Consultation
We sit down with you - in person or virtually - to understand your goals, your budget, and the story behind why you want an ADU. No pressure, just honest conversation.
Site Assessment & Feasibility
Our team walks your property to evaluate lot size, setbacks, utility access, and zoning requirements specific to Santa Clarita. You'll leave this step knowing exactly what's possible.
Custom ADU Design
Our in-house designers draft a layout tailored to your lifestyle and your lot - blending function, beauty, and long-term value into every square foot.
Permitting & City Approvals
We prepare and submit a complete permit package to the City of Santa Clarita and manage all back-and-forth with the building department so you never have to chase paperwork.
Site Preparation & Utilities
Before a single wall goes up, we handle grading, drainage, foundation work, and utility connections - laying a solid foundation for everything that follows.
Construction & Framing
Our seasoned crews build with care and precision, maintaining a clean, organized job site and keeping you updated at every milestone throughout the build.
Finishes & Final Inspections
From flooring and cabinetry to plumbing fixtures and paint, we see every finish through to completion - then coordinate all final city inspections to achieve your certificate of occupancy.
Walkthrough & Handoff
We do a thorough walkthrough with you, answer every question, and make sure you're completely satisfied before we hand over the keys to your new ADU.
What Sets Our ADUs Apart
Every project we touch reflects the same commitment to quality and care that has earned us a loyal reputation across Santa Clarita.
Structural Integrity
We engineer every ADU to meet and exceed California's strict seismic and building standards, so your structure stands strong for generations.
Permit Mastery
Our deep familiarity with Santa Clarita's building department means fewer delays, fewer revision cycles, and a smoother path to your approved permit.
Thoughtful Space Design
We design ADUs that feel like real homes - not afterthoughts - maximizing livability within every square foot through smart layouts and natural light.
Craftsmanship You Can See
From framing to finish carpentry, our tradespeople take pride in their work and hold themselves to standards you'll notice in every corner of your ADU.
Utility & Plumbing Precision
Proper water supply, drainage, and electrical planning from day one prevents costly surprises and ensures your ADU is comfortable and code-compliant.
On-Time, On-Budget Delivery
We set realistic timelines and budgets upfront, then manage every subcontractor and supplier to keep your project on track without unwelcome surprises.
Why Santa Clarita Builds With Us
Four reasons Santa Clarita homeowners choose us over the competition - and keep coming back.
Truly Local Expertise
We live and work in the Santa Clarita Valley. Our permit knowledge, contractor relationships, and neighborhood familiarity are built from years of projects right here - not applied generically from out of town.
Single-Team Accountability
Design, permitting, site prep, and construction are all managed under one roof. You have one point of contact and one team that stays with you from the first conversation to the final inspection.
Transparent, Honest Pricing
We provide detailed, written proposals with no vague line items. If a scope changes, we tell you why and what it costs before we proceed - every time, without exception.
Craftsmanship That Lasts
We select materials, finishes, and construction methods that hold up in California's climate and stand the test of time, because an ADU is too significant an investment to cut corners on.
Frequently Asked Questions
Honest answers to the questions Santa Clarita homeowners ask us most often about building an ADU.
Ready to Add an ADU to Your Santa Clarita Home?
Let's talk about your property, your goals, and what's possible. A friendly, no-pressure conversation with our team is the best first step - and it costs you nothing.
(747) 294-4817Tell Us About Your ADU Project
Share a few details and one of our Santa Clarita ADU specialists will reach out to schedule your complimentary consultation.
ADU Service Across the Santa Clarita Area
We Are the Santa Clarita Team for Ellery.
Ellery was founded in 2015, the year California's ADU law changed and the permitting queue became the actual product. It is a design-build studio rather than a contractor: the drawings, the permit set and the build are one contract with one price, because the ADU projects that go wrong are almost always the ones where the designer and the builder can each blame the other.
Same training, same parts, same pricing practice, and the same 365-Day Done Right Promise - delivered by people who live here.
Visit Ellery →Part of the Haven Family.
Haven is a family of home-service brands held to one written standard, and Ellery is the adu company in it. One promise stands behind every trade, in every town.