Custom Home Design
Develop a cohesive architectural vision for a new single-family home or residential building, balancing timeless character, sustainability, technology, and detailed craftsmanship.
Planning a custom home can involve both architectural vision and construction expertise. Ortiz Mexia Projects, Inc. helps homeowners understand the distinct roles of architects and builders, then provides design, permitting, interiors, and project guidance for residential work. With an integrated approach, the studio coordinates thoughtful design decisions from early concepts through construction completion and Certificate of Occupancy.

Integrated residential design, permitting, visualization, interiors, and construction guidance for custom homes and renovations.
Develop a cohesive architectural vision for a new single-family home or residential building, balancing timeless character, sustainability, technology, and detailed craftsmanship.
Receive guidance through building permit procurement, with coordination among clients, consultants, contractors, and municipal agencies throughout the approval process.
Continue with informed project guidance from design through construction, helping align the built result with the approved design and the client’s goals.
Coordinate interiors, custom furniture, cabinetry, and built-ins as part of a unified residential environment rather than treating each element as an afterthought.
Plan thoughtful additions, alterations, renovations, and historical preservation work while responding to the existing home and its architectural character.
Use virtual reality and three-dimensional models to help clients experience proposed spaces and make more informed design decisions during the process.
An architect shapes the home’s design, documentation, and coordination, while a builder focuses on constructing the approved work. Ortiz Mexia Projects, Inc. helps clients understand how these roles connect and provides support across design, permitting, contractor bidding, construction guidance, and project completion. The studio’s Los Angeles and Roaring Fork Valley experience supports thoughtful residential projects with timeless design, sustainable systems, and carefully coordinated details.

Get an integrated design perspective for complex residential decisions and project coordination.
Coordinate architecture, interiors, furniture, cabinetry, and built-ins through one connected design practice.
Create elegant residential environments designed to remain meaningful beyond short-lived trends.
Use AI, BIM, and VR tools to improve communication, visualization, and design coordination.
Support clients, consultants, contractors, and municipal agencies throughout the project’s evolving requirements.
Learn about the architect leading Ortiz Mexia Projects, Inc.

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 design costs vary according to the project’s scope, complexity, location, services requested, and level of involvement. A custom home may include concept design, drawings, permitting support, consultant coordination, contractor bidding, construction guidance, interiors, and visualization. Ortiz Mexia Projects, Inc. does not publish standard pricing, so the appropriate fee structure is discussed after understanding the property and project goals.
Talk with the studio about your property, goals, and project responsibilities.
Residential design services are available by appointment across selected communities in California and Colorado.
Greater Los Angeles
Primary Region
Roaring Fork Valley
Colorado Region
By Appointment
Availability
Confirm availability and discuss your location with the design studio.
Professional affiliation held by principal Santiago Ortiz.
Residence featured in the Venice Vista Spring Home Tour.
Work featured in Interior Design Magazine and Los Angeles Times.
Share your property and goals to explore whether architectural design, construction guidance, or both fit your project.
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.