Custom Home Design
Develop a residential concept tailored to your site, lifestyle, and aesthetic goals, with architectural design, consultant coordination, permitting guidance, and construction support.
Understand the difference between custom house design and pre-designed plans before beginning your project. Ortiz Mexia Projects, Inc. creates timeless residential environments with coordinated architecture, interiors, cabinetry, and built-ins. From early concepts and immersive VR presentations through permitting, contractor bidding, construction guidance, and Certificate of Occupancy, the studio helps homeowners make informed design decisions with confidence.

Explore integrated residential design services for custom homes, renovations, additions, interiors, permitting, and construction guidance.
Develop a residential concept tailored to your site, lifestyle, and aesthetic goals, with architectural design, consultant coordination, permitting guidance, and construction support.
Plan new single-family homes and residential buildings up to 4 units through coordinated design, VR visualization, permit procurement, contractor bidding, and project completion.
Reimagine existing homes through full-service design, permitting, construction oversight, and thoughtful improvements that support timeless character and sustainable performance.
Expand or reconfigure an existing residence with coordinated architectural design, permit support, consultant collaboration, and guidance through construction completion.
Receive guidance through municipal permitting for residential projects, with support connecting design documents, consultants, contractors, and approval requirements.
Maintain design intent from concept through construction with detailed project orchestration, contractor coordination, and support toward Certificate of Occupancy.
Pre-designed plans may offer a starting point, but custom design gives homeowners greater control over how a residence responds to its site, routines, character, and long-term goals. Ortiz Mexia Projects, Inc. coordinates architecture, interiors, furniture, cabinetry, and built-ins into one considered environment. VR presentations and AI-supported workflows help clients understand ideas before construction decisions are finalized.

A design-led practice connecting architecture, interiors, technology, and construction guidance.
Coordinate architecture, interiors, furniture, cabinetry, and built-ins through one cohesive design practice.
Create elegant residential environments designed to remain thoughtful beyond short-lived trends.
Use VR and AI-supported workflows to make design ideas more understandable before implementation.
Receive collaboration across design, permitting, contractor bidding, construction, and project completion.
Led by founder and principal Santiago Ortiz, Assoc. AIA.

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.
Pre-designed plans are developed in advance and may provide a starting framework, while custom plans are created around a specific property, lifestyle, aesthetic, and project brief. Custom design can coordinate architecture with interiors, cabinetry, built-ins, and sustainable systems. It also allows the design team to respond more directly to site conditions, municipal requirements, and the homeowner’s priorities.
Talk with the studio about your property, plans, and design priorities.
Ortiz Mexia Projects, Inc. serves residential clients across Los Angeles and Colorado’s Roaring Fork Valley.
Los Angeles, CA
Primary Service Area
Roaring Fork Valley
Colorado Region
By Appointment
Availability
Share your location and residential goals with the design studio.
Professional membership held by principal Santiago Ortiz.
Residence featured in the Venice Vista Spring Home Tour.
Work featured in respected design and news publications.
Tell us about your property, project type, and goals so the studio can discuss the right 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.