Residential Design
Full-service design for single-family homes and residential buildings of up to four units, from early concepts through construction completion and Certificate of Occupancy.
Finding the right builder for a custom home project requires more than comparing bids. Ortiz Mexia Projects, Inc. brings architectural design, permitting guidance, interior coordination, and construction-phase support together in one thoughtful process. From Los Angeles residences to projects in Colorado’s Roaring Fork Valley, the studio helps homeowners pursue timeless, sustainable environments with careful attention to detail and long-term livability.

Explore integrated architectural, interior, permitting, and construction guidance for distinctive residential environments.
Full-service design for single-family homes and residential buildings of up to four units, from early concepts through construction completion and Certificate of Occupancy.
Custom design for new residences with coordinated planning, permitting support, consultant collaboration, contractor bidding guidance, and construction-phase involvement.
Design-led remodeling for existing homes, combining architectural planning, permit procurement, construction oversight, and thoughtful coordination from concept through completion.
Carefully planned additions and alterations for homes and residential buildings, balancing new requirements with existing character, sustainability, and practical use.
Custom interiors for remodels, new construction, additions, and alterations, integrating spatial planning, furniture, cabinetry, technology, and timeless material sensibility.
Guidance through municipal building permit processes for residential projects, with coordination among clients, consultants, contractors, and relevant agencies.
A custom home project benefits from clear coordination between architecture, interiors, permitting, and construction. Ortiz Mexia Projects, Inc. supports homeowners through these connected phases, helping align design intent with practical implementation. The studio’s Los Angeles roots and experience in Colorado’s Roaring Fork Valley inform responsive solutions for distinct settings, while sustainable systems, AI and VR tools, and detailed craftsmanship support lasting residential environments.

Principal-led design support brings creative direction and practical coordination to complex residential projects.
Architecture, interiors, furniture, cabinetry, and built-ins can be coordinated within one design practice.
Thoughtful design avoids fleeting trends and supports elegant, durable residential environments.
Experience across Los Angeles, Santa Monica, Beverly Hills, and the Roaring Fork Valley supports responsive planning.
Clients receive support across design, permitting, contractor bidding, construction, and project completion.
Santiago Ortiz leads a multidisciplinary practice focused on custom residential design.

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.
Start by looking for a team whose experience matches your project type and whose responsibilities are clearly defined. Ask how design, permitting, contractor bidding, construction administration, interiors, and specialty elements will be coordinated. Ortiz Mexia Projects, Inc. provides integrated residential design and project guidance, helping homeowners connect architectural intent with practical implementation throughout the project.
Share your goals with a design team experienced in thoughtful residential projects.
Ortiz Mexia Projects supports custom residential work across Los Angeles and Colorado’s Roaring Fork Valley.
Los Angeles, CA
Primary Region
Roaring Fork Valley
Colorado Region
By Appointment
Availability
Contact the studio to discuss your property, goals, and project location.
Professional affiliation with The American Institute of Architects
Projects featured in Interior Design Magazine and the Los Angeles Times
Residence featured in the Venice Vista Spring Home Tour
Tell us about your property, design goals, and location 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.