With its elevated views and highly desirable location, Signal Hill offers homeowners the perfect opportunity to expand with an Accessory Dwelling Unit (ADU). Whether you’re looking to house aging family members, create a rental unit, or add flexible living space, Orr Construction Company is the ADU builder Signal Hill residents trust for tailored design, code-compliant builds, and a seamless construction experience.
From initial feasibility assessments to the final inspection, our veteran-led team ensures your ADU is built to perform, last, and add long-term value to your property.
Veteran-Owned. Permit-Ready. Built to Last.
Founded by U.S. Army combat veteran Robert Andrew Orr, Orr Construction Company approaches every project with clarity, accountability, and mission-level discipline. We’ve completed more than 150 residential and commercial builds across Southern California—including many custom ADUs for hillside and view-lot properties like those found in Signal Hill.
As a certified DVBE, SB, and SDVOSB contractor, we bring both professionalism and proven experience to the table, delivering results that align with your goals and local requirements.
Tailored ADU Solutions for Signal Hill Homes
An ADU is more than an extra building—it’s an opportunity to design a highly functional, self-contained living space that fits your property and purpose. We offer fully custom ADU solutions, including:
- Detached ADUs, garage conversions, and above-garage units
- Full-service design and architectural collaboration
- City permitting and zoning navigation
- Complete buildout including kitchen, bath, and utility installation
- Smart home integration and energy-efficient features
- Finish options tailored to match your main home or stand out with style
Whether your lot is flat or sloped, compact or expansive, we’ll help you determine the right type of ADU for your space, your budget, and your goals.
Our Four-Step ADU Build Process
We guide you through a clear and efficient ADU building process designed to reduce stress and deliver exceptional results:
1. Consultation & Site Review
We begin with an on-site assessment to evaluate your lot, understand your objectives, and check for zoning, access, and feasibility issues unique to Signal Hill’s terrain and regulations.
2. Design & Planning
Our team works with trusted design professionals—or yours—to create a full set of plans. We manage all permitting and ensure compliance with local ordinances, including height restrictions, lot coverage, and required setbacks.
3. Construction
Once approved, we handle the entire build—from demolition to final finish. Our team coordinates trades, oversees daily site management, and keeps you informed throughout the process.
4. Final Walkthrough & Delivery
Upon completion, we walk through the finished ADU with you to ensure it meets our standards—and yours. We quickly resolve any remaining items so your new unit is move-in ready without delay.
Why Build an ADU in Signal Hill?
Signal Hill is a rare gem—offering ocean views, proximity to major job centers, and larger lots than many nearby neighborhoods. An ADU adds significant versatility and value to your property by allowing you to:
- Create space for extended family or guests
- Generate rental income from long- or short-term tenants
- Plan ahead for multigenerational living
- Design a flexible office, studio, or wellness space
- Boost overall property value in a desirable real estate market
In a city with so much to offer, adding an ADU makes your home even more powerful and personalized.
Why Choose Orr Construction Company?
Homeowners choose Orr Construction Company as their ADU builder in Signal Hill because we offer:
- Veteran-led organization and project leadership
- Local code expertise and strong relationships with city inspectors
- Clear estimates, timelines, and communication from start to finish
- Durable materials and high-end craftsmanship
- Tailored design and client-focused solutions
We don’t just add square footage—we help you build smarter, live better, and increase your property’s future potential.
Ready to Build Your ADU in Signal Hill?
Your property has more to offer—and Orr Construction Company is here to unlock that potential. Call (562) 498-0224 today to schedule your ADU consultation with Signal Hill’s trusted builder. Let’s build something that enhances your lifestyle and your investment.