Whether you’re planning a detached guest house, converting a garage, or building a rental unit for extra income, an Accessory Dwelling Unit (ADU) can transform your property—and your possibilities. At Orr Construction Company, we are the ADU builder Los Alamitos homeowners rely on for expert guidance, full-service construction, and enduring value.
From early zoning evaluations to final walkthroughs, our veteran-led team manages every detail of your ADU build with professionalism and clarity.
Veteran-Led Experience You Can Trust
Founded by U.S. Army combat veteran Robert Andrew Orr, Orr Construction Company brings the leadership, structure, and integrity of military service to high-quality residential construction. With over 150 completed projects across Southern California and certifications including DVBE, SB, and SDVOSB, we offer experience that’s built on discipline and results.
Our deep understanding of local codes, zoning rules, and permitting in Los Alamitos helps ensure a smooth, successful ADU project—every time.
Custom ADUs Designed to Fit Your Property and Goals
We build more than backyard units—we create living spaces that are beautifully designed and fully functional. Whether your ADU will house family, generate rental income, or provide extra flexibility, we tailor the design and layout to your specific needs.
Our Los Alamitos ADU services include:
- Detached ADUs and standalone backyard cottages
- Garage conversions with full interior buildout
- Above-garage and attached ADU design
- Full permitting and code compliance
- Utility upgrades and sewer/gas/electric connections
- Custom kitchens, bathrooms, and storage
- Smart home integration and energy-efficient systems
No matter the size or configuration, we make sure your ADU enhances both your lifestyle and your property value.
Our Four-Phase ADU Build Process
We’ve developed a clear, proven process that keeps your project on track and your experience hassle-free:
1. Site Evaluation & Consultation
We begin with a site visit to assess feasibility based on lot size, setbacks, access, and Los Alamitos zoning requirements. We help you identify the right type of ADU for your goals and property.
2. Design Development & Permits
Our team works with trusted designers—or yours—to develop a plan that complies with all local guidelines. We handle every aspect of plan submission, revision, and permit acquisition, so you don’t have to.
3. Construction
Once permits are issued, our team breaks ground. We coordinate every trade, manage schedules, maintain a clean site, and provide updates at key milestones. Your ADU will be built with precision, quality, and accountability.
4. Final Walkthrough & Delivery
When construction is complete, we conduct a full walkthrough to review finishes, test systems, and resolve any final details. Your ADU is handed over ready for occupancy—whether that’s family or future tenants.
Why Build an ADU in Los Alamitos?
Los Alamitos is known for its large lots, great schools, and stable neighborhoods—making it an ideal city for adding an ADU. Benefits include:
- Creating a rental unit for monthly income
- Providing independent space for aging parents or returning college students
- Increasing the value and versatility of your home
- Enhancing resale potential with added square footage
- Building a private office, studio, or guest retreat
California’s supportive ADU legislation makes now the ideal time to take advantage of what your property has to offer.
Why Choose Orr Construction Company?
Los Alamitos homeowners trust Orr Construction Company because we offer:
- Veteran-led leadership and dependable execution
- More than 100 years of combined construction experience
- Expert navigation of local rules and processes
- Full-service design, build, and project management
- Transparent communication and a client-first approach
We deliver more than construction—we deliver confidence, clarity, and high-quality results that last.
Ready to Start Your ADU in Los Alamitos?
Let’s build the extra space your home deserves. Call (562) 498-0224 today to schedule your consultation with Orr Construction Company, the ADU builder Los Alamitos residents trust for custom solutions, skilled construction, and veteran-grade professionalism.