Custom Home Design
Create a distinctive single-family home or residential building with coordinated architecture, interiors, sustainable thinking, and detailed guidance from concept through completion.
Explore thoughtful house design services that balance your goals, priorities, and available investment. Ortiz Mexia Projects, Inc. creates timeless residential environments through custom architecture, renovations, additions, interiors, cabinetry, and permitting support. From focused improvements to complete homes, the studio brings design clarity, sustainable thinking, and hands-on guidance to projects in Los Angeles and Colorado’s Roaring Fork Valley.

Explore integrated residential design services supporting projects from focused interiors and additions to complete custom homes.
Create a distinctive single-family home or residential building with coordinated architecture, interiors, sustainable thinking, and detailed guidance from concept through completion.
Develop new home plans with architectural design, permit procurement, VR visualization, consultant coordination, contractor bidding guidance, and support through construction completion.
Reimagine an existing residence through full-service design, permitting support, construction oversight, and carefully coordinated improvements shaped around timeless, lasting results.
Expand or reconfigure a home with custom architectural solutions, permitting assistance, consultant coordination, and design support for single-family and up to four-unit residences.
Shape refined, health-conscious interiors for remodels, new construction, additions, and alterations, integrating furniture, cabinetry, technology, and sustainable design principles.
Receive guidance through municipal permitting for residential projects, with coordinated support for clients, consultants, and contractors from design through Certificate of Occupancy.
Affordable does not have to mean ordinary. Ortiz Mexia Projects, Inc. helps homeowners identify the right scope, coordinate architectural and interior elements, and make informed decisions throughout a residential project. Whether you are considering a focused renovation, an addition, or a complete custom home, the studio combines timeless elegance, sustainable thinking, advanced AI and VR tools, and hands-on collaboration to create lasting value.

Get a design-led partner focused on thoughtful decisions, coordinated details, and enduring residential character.
Coordinate architecture, interiors, furniture, cabinetry, and built-ins through one connected design practice.
Develop elegant residential environments designed to remain meaningful beyond short-lived trends.
Work collaboratively with clients, consultants, agencies, and contractors throughout the project.
Use AI and VR tools to study designs clearly and support informed decisions across locations.
Led by founder and principal Santiago Ortiz, the studio brings architecture and fine arts together.

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 design project can be shaped around its priorities and scope, from a focused interior, cabinetry, or built-in project to a renovation, addition, or complete custom home. Ortiz Mexia Projects, Inc. works collaboratively with homeowners to clarify goals, coordinate decisions, and develop an appropriate path for the property rather than applying a one-size-fits-all solution.
Talk with the studio about your goals, property, and preferred project scope.
By appointment, the studio supports residential design projects across Los Angeles and Colorado’s Roaring Fork Valley.
Los Angeles, CA
Primary Area
Roaring Fork Valley
Colorado Region
By Appointment
Availability
Share your location and design goals with the studio to explore next steps.
Professional affiliation held by principal Santiago Ortiz
Ortiz-Wheeler Residence featured in the Venice Vista Spring Home Tour
Projects featured in Interior Design Magazine and Los Angeles Times
Tell us about your property, goals, and preferred scope so the studio can discuss a suitable design path.
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.