Custom Residential Design
Full-service design for single-family homes and residential buildings up to four units, including permitting guidance and coordination through construction completion.
Ortiz Mexia Projects, Inc. provides thoughtful architectural design and engineering coordination for custom homes, renovations, additions, interiors, and permitting. From early concepts through construction completion, the studio brings together timeless design, sustainable practices, advanced AI and VR tools, and detailed project guidance. Serving Los Angeles and Colorado’s Roaring Fork Valley, the firm creates spaces shaped around each client’s vision.

Integrated architectural, interior, permitting, and project guidance services for distinctive residential environments.
Full-service design for single-family homes and residential buildings up to four units, including permitting guidance and coordination through construction completion.
Design support for custom new homes, from initial concepts through permits, consultant coordination, contractor bidding, and completion with a Certificate of Occupancy.
Residential remodeling services combining architectural design, permit procurement, construction oversight, and thoughtful coordination from the first concept through project completion.
Custom additions and alterations that respond to an existing home while supporting sustainable systems, elegant design, permitting, and coordinated construction guidance.
Sensitive preservation and remodeling for residences in Historical Preservation Overlay Zones, integrating modern systems while respecting architectural character and integrity.
Guidance through municipal permitting for residential projects, with support for clients, consultants, and contractors across design, approvals, construction, and occupancy.
Architectural and engineering services should connect creative vision with practical project delivery. Ortiz Mexia Projects, Inc. coordinates design, interiors, sustainable systems, advanced AI and VR tools, permitting, consultants, contractors, and construction guidance as one considered process. For Los Angeles and Roaring Fork Valley projects, the studio provides hands-on collaboration tailored to each home, site, and client.

A design-led practice connecting architecture, interiors, technology, and construction guidance.
Elegant architectural character designed to remain meaningful beyond fleeting trends in Los Angeles and Colorado homes.
Architecture, interiors, furniture, cabinetry, and built-ins are coordinated through one design practice.
AI and VR tools support communication, immersion, and efficient design development throughout the work.
Clients, consultants, agencies, and contractors receive coordinated support from concept through construction completion.
Led by founder and principal Santiago Ortiz, the studio brings architectural and fine arts expertise.

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 and engineering services support the planning, design, documentation, approval, and delivery of a building project. Architecture addresses spatial organization, appearance, materials, and how people experience a place, while engineering coordination helps address technical systems and project requirements. Ortiz Mexia Projects, Inc. provides design, permitting support, consultant coordination, and construction guidance for residential work.
Talk with the studio about your project, property, and architectural goals.
By appointment, the studio serves residential clients across Los Angeles and Colorado’s Roaring Fork Valley.
Los Angeles & Roaring Fork Valley
Service Area
By Appointment
Availability
Residential Design
Project Focus
Share your location and project goals with the studio for an initial discussion.
Professional affiliation held by principal Santiago Ortiz.
Work featured in Interior Design Magazine and the Los Angeles Times.
Ortiz-Wheeler Residence featured in the Venice Vista Home Tour.
Tell us about your property, design goals, and desired scope so the studio can understand how to help.
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.