Major Remodels and Custom Homes

We provide clients with award winning design services, early cost estimating, quality construction, and an exceptional client experience.

Our Versatile Style, Custom Tailored To You

Full-Service Design Build Approach, Project Management, Cost Estimation

Our clients are highly discerning individuals, that are seeking like-minded architects, interior designers, and general contractors that are passionate about transforming homes into remarkable living spaces. Take a look at some of the remodeled spaces and custom homes we have created together with our clients.

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Our Proudest Achievement & Biggest Regret of 2025

Business of Home

When asked about our biggest 2025 achievement, Bill Baldwin reflected on what may be the most meaningful work our design/build firm has undertaken.

Clean & Contemporary Scandinavian-Inspired Kitchen

Watch Our Most Recent Project Spotlight

This home's kitchen and living room redesign is rooted in simplicity and functionality, pulling inspiration from Scandinavian-style interior design. The home’s existing layout divided its central spaces into a small kitchen, dining room, and living room. Removing the dividing walls allowed for a new, larger kitchen and a more welcoming and luxurious central living space.

Explore This Project

Building in a High Fire Zone Webinar

Featuring The Lamonette Residence

Join us for an in-depth look at this custom home built in a high-fire zone. Hear the story behind this complex design/build project and learn about high-fire zone requirements and recommendations directly from the team.

Frequently Asked Questions

HartmanBaldwin is a fully integrated Architecture, Construction and Interior Design company specializing in large-scale, residential, design-build remodels, expansions, additions, and custom homes. We provide full-service architecture, interior design, and construction for any complex residential remodeling project.

We proudly serve the greater San Gabriel Valley, Orange County, and Los Angeles County. Our offices are based in the historic towns of Claremont and Pasadena, California.

General contractors can be useful as coordinators for projects involving minimal design. Design/Build firms offer improved integration of design and construction services compared to general contractors, which can translate into higher quality projects and a more seamless construction experience for homeowners.