Custom Residential Design
Develop a complete architectural vision for single-family homes and residential buildings through four units, with careful coordination from concept through completion.
Choosing an architect for a custom home involves more than reviewing beautiful images. Ortiz Mexia Projects, Inc. helps homeowners evaluate design sensibility, communication, permitting support, technology, and construction guidance. From early concepts through Certificate of Occupancy, the studio offers thoughtful residential design shaped around timeless elegance, sustainability, and the realities of each project.

Explore coordinated architectural, permitting, visualization, and construction guidance services for distinctive residential projects.
Develop a complete architectural vision for single-family homes and residential buildings through four units, with careful coordination from concept through completion.
Create new-home designs with coordinated consultants, permit support, VR visualization, and guidance through construction completion and Certificate of Occupancy.
Expand or reconfigure an existing residence through integrated design, permitting assistance, consultant coordination, and construction-phase guidance.
Transform an existing home with design-led planning, sustainable systems, permit procurement, construction oversight, and support through project completion.
Receive guidance through municipal permitting for residential projects, with assistance coordinating designs, consultants, contractors, and required approvals.
Maintain design intent through construction with detailed project orchestration, contractor coordination, technology integration, and guidance through completion.
The right architect should bring more than plans to your project. Ortiz Mexia Projects, Inc. combines architectural design, interiors, cabinetry, built-ins, sustainable thinking, and construction guidance into a coordinated residential practice. Clients receive hands-on collaboration from early programming through permitting and construction, supported by AI and VR tools that make design decisions easier to understand.

Select a design partner whose capabilities align with your ambitions, values, and expectations.
Coordinate architecture, interiors, furniture, cabinetry, and built-ins through one design-led practice.
Favor elegant, durable solutions over fleeting trends, creating homes with enduring visual and practical value.
Receive collaboration with clients, consultants, municipal agencies, and contractors throughout the project.
Use AI and VR tools to explore spatial ideas and support clearer, more informed design decisions.
Learn about the architect behind this 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 fees vary according to the project’s scope, complexity, existing conditions, level of documentation, permitting needs, and construction guidance required. A custom home may involve more than drawing plans, including programming, design development, consultant coordination, permit procurement, and construction-phase services. Ortiz Mexia Projects, Inc. discusses the project requirements with prospective clients before defining an appropriate scope.
Talk with the design team about your goals, property, and project scope.
Appointments are available for residential design projects across selected California and Colorado service areas.
Los Angeles, CA
Primary Region
Roaring Fork Valley
Additional Region
By Appointment
Availability
Share your project location and requirements with the design team.
Professional membership held by principal Santiago Ortiz
Projects featured in Interior Design Magazine and Los Angeles Times
Residence featured in the Venice Vista Spring Home Tour
Tell us about your property, design goals, and desired project support so we can discuss the next step.
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.