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PAS Architects is a service-driven architecture firm in Southern California creating passive, adaptive, and sustainable spaces with purpose-driven design. As a registered Southern California architectural firm, we specialize in custom, user-centered architecture — delivering clarity, creativity, and full-service support from concept to completion.
A curated mix of built and conceptual work — each rooted in purpose and crafted to elevate how we live, work, and connect.
Every great project starts with a conversation. At PAS Architects, our service-driven process begins with deep listening and a commitment to clarity, care, and collaboration. As a licensed SoCal architect and sustainable design firm, we guide you from first sketch to final permit—delivering sustainable, purpose-driven architecture shaped by your site, your lifestyle, and your vision.
From first sketch to final build, PAS Architects offers thoughtful, place-driven architectural services tailored to your lifestyle, goals, and site. Whether you're planning a custom home, a sustainable renovation, or a feasibility study, our Southern California licensed architect team leads every step with care, clarity, and creativity — through a service-driven, purpose-led design process rooted in sustainability and adaptability.
Tailored residences that reflect your lifestyle, values, and vision.
Smart, efficient design solutions that seamlessly expand your space.
Thoughtful updates that respect the original while improving function, flow, and beauty.
Well-balanced living environments that foster community, comfort, and performance.
Purpose-driven spaces that elevate business, rooted in design clarity and sustainability.
Crafted interiors that connect function with feeling — natural, modern, and refined.
At PAS Architects, our process begins long before pen meets paper. We start by listening — to the land, to the people, and to the deeper purpose behind every project. As a service-driven, user-centered architecture firm in California, we design with heart and build with meaning. Each space is rooted in sustainability, simplicity, and regional character — resulting in architecture that feels personal, performs beautifully, and truly belongs.
Rooted in Local Expertise PAS Architects is based in Cerritos and proudly serves homeowners, business owners, and developers across Southern California — including Artesia, Bellflower, Buena Park, Cerritos, Cypress, Downey, La Mirada, La Palma, Lakewood, Long Beach, Norwalk, Whittier, Manhattan Beach, Palos Verdes Estates, San Marino, Pasadena, and Newport Beach. Our team brings deep expertise in local zoning codes, permitting processes, ADU regulations, hillside conditions, and Title 24 energy requirements. Whether you're planning a compact backyard ADU in Norwalk, a custom home in Long Beach, or a commercial renovation in Pasadena, we deliver architecture grounded in clarity, compliance, and regional insight.
Wondering what your project might cost? Use our fast, no-signup tools to estimate fees for custom homes, ADUs, or remodels.
Have a commercial or unique project instead?
At PAS Architects, every project begins with purpose and ends with lasting impact. As a purpose-driven, adaptive design firm, our architectural process is clear, collaborative, and built on trust. We guide you step by step — delivering custom, sustainable spaces that reflect your goals, support your lifestyle, and respond to the unique character of your site.
We start by listening — to your needs, the site, and the story behind the space.
Concepts take form through sketches and early ideas, aligning vision with feasibility.
Details evolve — materials, structure, and systems — refining the design with precision.
We translate the vision into technical drawings ready for permitting.
Finding the right builder.
We assist during construction to align with the design intent.
“Architecture is a dialogue — with site, climate, and community. I believe our job is to listen first, then respond with care and clarity.”
— Larry Phong, Architect
| Field | Details |
|---|---|
| Title | Founder & Principal Architect |
| Name | Larry Phong |
| Practice | PAS Architects | California architecture firm |
| Licenses | CA Architect (C-40875); TX Architect (31220) |
| NCARB | Certificate Holder (109143) |
| Languages | English & Vietnamese |
| Education | BArch, Cal Poly Pomona College of Environmental Design |
| Philosophy | Passive • Adaptive • Sustainable—architecture that feels right, performs well, and belongs to its place. |
“Architecture is a dialogue — with site, climate, and community. I believe our job is to listen first, then respond with care and clarity.”
— Larry Phong, Architect
