Hsu McCullough: custom residential design and development devoted to the art of living

Hsu McCullough is an architecture studio based in Los Angeles specializing in custom home design rooted in comfort and unique beauty.
Led by principals Peggy Hsu, AIA and Chris McCullough, we envision and create exceptional places through a collaborative process with our clients.

Hsu McCullough’s meticulous approach offers thoughtful and elegant solutions for all budget and schedule challenges.  Our studio engages every detail of the process that flows from initial project analysis to communicating the design vision through to construction completion. A Hsu McCullough space reflects the aspirations and lifestyles of our clients with a loyalty to natural light and an equal enjoyment of interior and exterior environments in all their many forms.



Peggy Hsu, AIA


Peggy received her Bachelor of Architecture degree from California State Polytechnic University, Pomona where she spent an year studying abroad in Copenhagen, Denmark. Prior to establishing Hsu McCullough, Peggy worked at several architectural and real estate development companies where she fully guided design and construction projects ranging from single family residences, executive suites in office buildings, mixed-use condominium developments and boutiques restaurants located throughout Southern California. Peggy is a licensed architect in California.

Chris McCullough


Upon graduating with distinction from Carleton University School of Architecture in Canada, Chris moved to Osaka, Japan to work in an architecture office.  From there, he later worked for 12 years at a design-build architecture firm in Los Angeles before forming Hsu McCullough, an idea born through the design and construction of his first home together with his wife Peggy Hsu. Chris has over 25 years of architectural design experience with a specific focus on custom luxury homes as well as restoration of historic homes by architects such as Cliff May, Ray Kappe and David Hyun.
Chris was blessed to spend ample time in the country as well as the city during his childhood. He has as much love for plants as building structures.  Landscape - especially trees - are typically weaved into Hsu McCullough homes.

Soroush Sarang

Project Architect

A graduate of Cal Poly Pomona, Soroush’s command of design visualization along with incorporating the latest technology in project design and delivery provide integral success to each Hsu McCullough project.



More than 50 years’ combined experience


Over 160 proud homeowners living in Hsu McCullough designed homes


Over 50 publication features


Unspoiled nature: Over 30 homes conserve existing legacy trees where trees are not removed for space or “views”


Custom residential projects completed since 2009


Worked in over 36 jurisdictions (and growing)


Working with us

We work with homeowners to build their dream homes.
From finding the perfect lot to providing overall project budget estimates, schedules, design, permitting right to the finished home, our service is inclusive. So you don’t have to work out the details on your own.
Architecture and Interior Design: We have completed homes as well as other spaces of all sizes since 1998.
Engineering: We partner up with the best surveyors, civil, soils and structural engineers in your city to ensure your home is safe and energy efficient.
Permit Processing: Our secret is that we are really good at the boring stuff too, like expeditiously permitting through the local city’s entitlement process.
Construction: We can introduce you to our always growing network of contractors that will build your home as we shepherd you through this process.

Start a Project

We celebrate the talented experts that we work with on all of our projects.

If you are a contractor, builder, developer, engineer, interior or landscape designer, photographer, videographer, or in another related field, and would like to work with us, get in touch.

Start a Project

If you are interested in working at Hsu McCullough, and are a passionate and self-motivated individual with strong 3D visualization skills, please tell us about yourself.

Get in Touch