Build backyard homes with the premier ADU Contractor in Pasadena.
As a dedicated ADU contractor in Pasadena, we build custom backyard units and garage conversions. We handle design, permits, and construction under one contract.
About Our Team
Expert ADU Contractor in Pasadena
We focus exclusively on accessory dwelling units. Since 2009, our team has completed over 200 custom builds and garage conversions as a leading ADU contractor in Pasadena.
Building a detached ADU is a ground-up construction project requiring grading, foundation work, framing, and independent utility connections. Many general builders handle these projects as secondary work between custom homes. We specialize in them. We self-perform our core trades and coordinate the design, permitting, and construction in-house to deliver a premium guest house or rental property.
Learn About Our Team
What We Do
ADU Services from a Los Angeles Design-Build Team
From feasibility through final inspection, one ADU builder handles your full scope so timelines and costs stay clear.
Plan your project with dedicated ADU builders Los Angeles homeowners trust for faster approvals, buildability, and rental value.
ADU Plans & Design
Our team acts as the expert ADU contractor Los Angeles cities work with daily, handling all submissions and correction responses.
ADU Permits & Approvals
Build ADU space with one accountable team managing construction quality, schedule, and trade coordination from start to final inspection.
Detached ADU Construction
Your Trusted ADU Contractor in Pasadena
We are not a generalist builder that occasionally takes on backyard units. As a dedicated ADU contractor in Pasadena, our crews construct secondary units full-time. This focus guarantees consistent craftsmanship, predictable timelines, and a single point of contact from first concept to final inspection.
- Dedicated project manager assigned at contract signing
- Weekly written progress updates throughout the build
- Self-performed core trades, with no hand-offs to unknown crews
- All work inspected by the city at every required phase
- Certificate of occupancy obtained before project closeout
- 1-year workmanship warranty on all completed construction
Build Process
Our Process as Your ADU Contractor in Pasadena
From site prep to the final details, we manage every stage of your detached ADU construction under a single contract.
Site Prep
We grade the site, dig utility trenches, run primary sewer and electrical lines, and pour the concrete foundation.
Framing & Envelope
We frame the walls and roof structure, install energy-efficient windows, and apply weatherproofing and roofing.
Rough-Ins
Our in-house trades install plumbing lines, electrical wiring, and the high-efficiency HVAC system.
Finishes
We insulate, install drywall, paint, fit cabinetry, lay flooring, mount fixtures, and complete the final municipal inspection.
ADUs Starting From $150,000
Pasadena ADU costs are competitive with the broader San Gabriel Valley market. Garage conversions and JADUs offer the most cost-effective entry points for homeowners. All-inclusive of design, engineering, permitting, and full construction.
- Design, architecture and engineering included
- Permitting and city approval management included
- Full construction and site work included
- Final inspection and certificate of occupancy included
* All-inclusive pricing. Final cost depends on scope and site conditions.
Get a Free Estimate for Your Pasadena Property
We will assess your property, review your Pasadena zoning, and provide a detailed cost and timeline estimate, at no charge, with no obligation.
- Pasadena-specific feasibility review for your lot
- Realistic all-inclusive cost range for your ADU type
- Timeline from design through certificate of occupancy
- Response within 1 business day
Also serving nearby
Request Your Free Estimate
We will be in touch within 1 business day.
Common Questions
ADU Questions for Pasadena Homeowners
Can I build an ADU in Pasadena's historic districts?
Is a garage conversion a good ADU option in Pasadena?
How long does ADU permitting take in Pasadena?
What rental income can I expect from a Pasadena ADU?
Do I need to add parking when building an ADU in Pasadena?
What is the maximum size allowed for an ADU in Pasadena?
How do Pasadena setback requirements affect where I can build?
Can I build both an ADU and a JADU on my Pasadena property?
Does Pasadena Water and Power require separate utility meters for an ADU?
Are there school impact fees for ADUs in Pasadena?
Need help planning your ADU project?
Talk with an ADU specialistWhy ADU Build LA
ADU Expertise You Can Count On
We have built ADUs across Pasadena and the surrounding area, navigating local zoning, permit processes, and site conditions that generalist contractors do not know.
Pasadena-Specific ADU Services
Detailed local guides covering permits, pricing, and timelines specific to Pasadena.
ADU Construction in Pasadena - Built Right the First Time
Full-service ADU construction in Pasadena. Detached ADUs, garage conversions, and JADUs - including historic overlay areas. Fixed-price contracts. Free estimate.
Pasadena Garage Conversion: Historic Districts, Design Review & Permit Process
Convert your Pasadena garage into a permitted ADU. Historic overlay districts, Design Commission review, Pasadena permit process, and costs from $80K. Free assessment.
ADU Projects in Pasadena
Real completed projects from our team in Pasadena, see the challenge, solution, and results.
Planning an ADU in Pasadena?
Design your ADU in our interactive configurator, choose type, size, style, and finishes. Get a matching floor plan and budget estimate before you talk to anyone.
Build Your ADU in Pasadena
Join over 200 Los Angeles homeowners who have added rental income and lasting property value with an ADU from ADU Build LA. Your free estimate is the first step.
Learn about our process as a full-service ADU design-build company serving all of Los Angeles County.