Custom Residential Design
Full-service design for single-family homes through four-unit residential buildings, including architectural planning, permitting, consultant coordination, and construction-phase guidance.
Choosing a luxury home architect involves more than comparing portfolios. This detailed review explores the design capabilities, collaboration styles, technology, sustainability principles, and project guidance that distinguish leading residential practices. Learn how Ortiz Mexia Projects, Inc. approaches custom homes, renovations, interiors, and built-ins across Los Angeles and Colorado’s Roaring Fork Valley, with an emphasis on timeless, elegant results.

Explore integrated architectural and design services for custom homes, renovations, interiors, cabinetry, permitting, and project guidance.
Full-service design for single-family homes through four-unit residential buildings, including architectural planning, permitting, consultant coordination, and construction-phase guidance.
Custom design for new residences with support from initial concepts through construction completion, including VR visualization, permits, and contractor coordination.
Design-led residential remodeling that combines architectural planning, sustainable practices, permitting support, construction oversight, and attention to timeless aesthetic character.
Thoughtful preservation and remodeling for historically significant residences, maintaining architectural integrity while integrating modern sustainable systems and technologies.
Custom interiors for remodels, new construction, additions, and alterations, coordinating spatial design, furniture, cabinetry, sustainability, and occupant wellness.
Integrated cabinetry, built-ins, and furniture designed for practical use, environmental responsibility, durability, and aesthetic longevity within residential spaces.
The strongest luxury architecture partnerships connect the home’s structure, interiors, furniture, cabinetry, and built-ins into one coherent experience. Ortiz Mexia Projects, Inc. offers design support across these elements, combining timeless elegance with sustainable practices, advanced AI and VR workflows, and detailed coordination with clients, consultants, municipal agencies, and contractors. Projects are served by appointment across Los Angeles and Colorado’s Roaring Fork Valley.

Compare architecture practices by looking for integrated expertise, clear collaboration, and a lasting design philosophy.
Architecture, interiors, furniture, cabinetry, and built-ins can be coordinated through one design practice.
The studio favors elegant, enduring solutions over fleeting trends in residential design.
AI and VR tools support design workflows and help clients experience proposed spaces.
Clients receive coordinated support through design, permitting, bidding, construction, and Certificate of Occupancy.
Learn about the architect behind this integrated residential design practice.

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.
Architectural costs vary according to the project’s scope, complexity, location, level of design involvement, and services required. A custom home may involve design, permit procurement, consultant coordination, contractor bidding, construction guidance, and completion support. Ortiz Mexia Projects, Inc. does not publish pricing in the supplied information, so fees should be discussed directly after the project requirements are understood.
Talk through your goals, property, scope, and preferred design approach.
Ortiz Mexia Projects, Inc. serves residential clients by appointment across Southern California and Colorado’s Roaring Fork Valley.
Los Angeles, CA
Primary Area
Roaring Fork Valley
Colorado Region
By Appointment
Availability
Confirm project availability and discuss your property with the studio.
Professional affiliation with The American Institute of Architects.
Residential work featured in the Venice Vista Spring Home Tour.
Projects featured in Interior Design Magazine and the Los Angeles Times.
Share your property, goals, and project scope to begin a focused conversation with the studio.
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.