Custom Residential Design
Full-service design for single-family homes through four-unit residential buildings, including permitting, contractor coordination, and guidance through construction completion.
Compare the benefits of working with a local architecture and design practice versus a national home-building option. Ortiz Mexia Projects, Inc. brings hands-on residential design, permitting guidance, construction coordination, and integrated interiors to projects in Los Angeles and Colorado’s Roaring Fork Valley. Explore a more collaborative approach for custom homes, remodels, additions, and thoughtful residential environments.

Integrated architectural, permitting, construction guidance, and interior services for custom residential projects.
Full-service design for single-family homes through four-unit residential buildings, including permitting, contractor coordination, and guidance through construction completion.
Design and project guidance for new homes, combining timeless aesthetics, sustainable systems, VR visualization, permitting support, and coordination with consultants and contractors.
Residential remodeling support covering design, building permit procurement, construction oversight, and project completion for homes in Los Angeles and the Roaring Fork Valley.
Thoughtful additions and alterations for residences and buildings up to four units, supported through design, permitting, construction, and completion phases.
Guidance through building permit procurement for residential projects, with support for clients, consultants, and contractors across the applicable municipal process.
Custom interior environments integrating architecture, furniture, cabinetry, built-ins, sustainable practices, and health-conscious design for new construction and remodels.
Local architectural collaboration can offer a more connected experience than a national option. Ortiz Mexia Projects, Inc. works directly with homeowners, consultants, municipal agencies, and contractors, coordinating design and construction details from concept through Certificate of Occupancy. For projects in Los Angeles or Colorado’s Roaring Fork Valley, the studio combines regional understanding with timeless design, sustainable thinking, and immersive AI and VR tools.

A design-led practice for homeowners seeking thoughtful coordination and a cohesive residential result.
Architecture, interiors, furniture, cabinetry, and built-ins can be coordinated within one design practice.
Clients receive direct collaboration with consultants, agencies, and contractors throughout the project.
The studio creates elegant environments designed to outlast short-lived trends in Los Angeles and Colorado.
AI, BIM, and VR tools support clearer communication and more immersive design decisions.
Led by architect and principal Santiago Ortiz, the studio brings design depth to residential work.

Assoc. AIA, Principal
Santiago Ortiz is the founder and principal of Ortiz Mexia Projects, Inc., an architecture and design practice serving Los Angeles and Colorado's Roaring Fork Valley. Born and raised in Colombia, Santiago moved to Providence, Rhode Island, to pursue his passion for design, graduating from the Rhode Island School of Design in 1999 with degrees in Architecture and Fine Arts. After relocating to Los Angeles, he honed his craft at small architecture firms specializing in high-end custom residences and boutique commercial spaces before founding his own practice in 2006. Santiago is an Associate Member of The American Institute of Architects and brings a timeless, elegant sensibility to every project, from custom furniture and built-ins to full-scale residential construction. His work has been featured in Interior Design Magazine and the Los Angeles Times, reflecting his commitment to thoughtful, well-crafted design.
A local architecture and design practice typically offers closer, more direct collaboration and a deeper focus on the specific project and municipal context. National options may provide standardized systems or broader operational reach. Ortiz Mexia Projects, Inc. supports homeowners through design, permitting, consultant coordination, contractor bidding, construction guidance, and completion for custom residential projects.
Talk with the studio about your home, renovation, or design project.
Residential design and project guidance for clients in Los Angeles and Colorado’s Roaring Fork Valley.
Los Angeles, CA
Primary Market
Roaring Fork Valley
Colorado Region
By Appointment
Availability
Contact the studio to discuss location, scope, and project fit.
Professional affiliation with The American Institute of Architects.
Firm work has received design publication coverage.
Residential work has received local media coverage.
Share your project goals and receive guidance on the right next steps.
For immediate assistance, feel free to give us a direct call at +1 (310) 600-0241.
For immediate assistance, feel free to give us a direct call at +1 (310) 600-0241.