Expert Architecture & Design-Build Services
Our team blends modern architecture with Los Angeles permitting expertise to deliver projects that move fast, look exceptional, and measurably increase property value. From single-family additions to ED-1 housing, every service is designed to turn vision into city‑approved plans, quickly and affordably.
Real Projects,
Real Results
Los Angeles homeowners and developers trust 121 Design Build to turn ideas into profitable realities. From unlocking rental income with ADUs to maximizing property value with SB9, our clients see tangible returns on their investments. These stories highlight what’s possible when design, permits, and construction support come together under one roof.
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Professional, reliable, and extremely skilled, 121 Design Build Inc. delivered outstanding results on our kitchen and bathroom remodel. They communicated clearly and always showed up on time. We’re so glad we chose them.
The team at 121 Design Build Inc. transformed my vision into reality. Their creativity and professionalism made the entire process enjoyable and stress-free.
121 Design build is one of the most reliable and trustworthy architectural companies that I worked with.
After interviewing multiple companies, we chose 121 Design Build because of their design expertise and transparent process. They delivered exactly what they promised a beautiful, high-quality renovation completed on time and within budget. We especially appreciated how responsive they were to our questions and ideas.
They know what they are doing. Extremely fast, very knowledgeable. I recommend them to all my friends and family.
Frequently Asked Questions
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Ready to build Smarter?
Book your free consultation today and discover how quickly we can turn your ideas into permits and long-term property value. Our team is here to guide you from the first sketch to final approval.