Residential Design
Develop a coordinated design for single-family homes and residential buildings, with guidance spanning concepts, permitting, contractor bidding, and construction completion.
Plan a whole house remodel with an architecture and design practice that coordinates residential design, interiors, permitting, construction guidance, cabinetry, and built-ins. Ortiz Mexia Projects, Inc. creates timeless, elegant environments for homeowners seeking thoughtful renovations rather than disconnected services. With experience serving Los Angeles and Colorado’s Roaring Fork Valley, the studio brings design continuity from the first concept through project completion.

Integrated design, permitting, interiors, and project guidance for thoughtful residential remodeling and renovation projects.
Develop a coordinated design for single-family homes and residential buildings, with guidance spanning concepts, permitting, contractor bidding, and construction completion.
Create cohesive, health-conscious interiors for remodels, additions, alterations, and new construction, emphasizing timeless character instead of short-lived trends.
Plan custom additions and alterations that respond to the existing home while coordinating design, permits, consultants, contractors, and project completion.
Receive guidance and assistance through the building permit process for residential projects in the greater Los Angeles area and Roaring Fork Valley.
Maintain design continuity through construction with project guidance, consultant coordination, contractor collaboration, and support through the Certificate of Occupancy.
Integrate custom cabinetry and built-in elements into the broader remodel for practical storage, refined detailing, and lasting visual cohesion.
A whole house remodel involves many connected decisions, from spatial planning and interiors to permits, cabinetry, and construction coordination. Ortiz Mexia Projects, Inc. brings these elements together through a single design-led practice. The studio serves homeowners across Los Angeles and Colorado’s Roaring Fork Valley, creating sustainable, elegant environments with careful attention to material sensibility, occupant wellness, and long-term character.

A coordinated architecture and design approach for homeowners who value clarity, craftsmanship, and lasting character.
Coordinate architecture, interiors, furniture, cabinetry, and built-ins through one cohesive design practice.
Create elegant residential environments that avoid trend-driven choices and support enduring visual character.
Support projects in Los Angeles, Santa Monica, Beverly Hills, and Colorado’s Roaring Fork Valley.
Collaborate with clients, consultants, agencies, and contractors from design through construction completion.
Led by Santiago Ortiz, the practice brings architectural and fine arts experience to residential projects.

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 whole house renovation generally begins with defining goals, assessing the existing property, and developing an architectural and interior design direction. Permit planning and consultant coordination follow, before contractor bidding and construction. The right sequence varies with the scope, existing conditions, and municipal requirements. A design-led firm can coordinate these phases so major decisions are resolved before work advances.
Talk with the design practice about your home, goals, and project scope.
By appointment, the studio supports residential remodeling projects across Los Angeles and Colorado’s Roaring Fork Valley.
Los Angeles, CA
Primary Service Area
Roaring Fork Valley
Colorado Service Area
By Appointment
Availability
Share your location and remodeling goals to discuss potential project support.
Professional association membership held by Santiago Ortiz
Firm work recognized through design publication coverage
Firm work recognized through local media coverage
Tell us about your property, goals, location, and desired level of design and project guidance.
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.