Architectural Design & Engineering Services

Ortiz Mexia Projects, Inc. provides thoughtful architectural design and engineering coordination for custom homes, renovations, additions, interiors, and permitting. From early concepts through construction completion, the studio brings together timeless design, sustainable practices, advanced AI and VR tools, and detailed project guidance. Serving Los Angeles and Colorado’s Roaring Fork Valley, the firm creates spaces shaped around each client’s vision.

Architect reviewing residential design plans with a client

Our Architectural Design Services

Integrated architectural, interior, permitting, and project guidance services for distinctive residential environments.

Custom Residential Design

Full-service design for single-family homes and residential buildings up to four units, including permitting guidance and coordination through construction completion.

New Home Construction

Design support for custom new homes, from initial concepts through permits, consultant coordination, contractor bidding, and completion with a Certificate of Occupancy.

Remodels & Renovations

Residential remodeling services combining architectural design, permit procurement, construction oversight, and thoughtful coordination from the first concept through project completion.

Additions & Alterations

Custom additions and alterations that respond to an existing home while supporting sustainable systems, elegant design, permitting, and coordinated construction guidance.

Historic Preservation

Sensitive preservation and remodeling for residences in Historical Preservation Overlay Zones, integrating modern systems while respecting architectural character and integrity.

Permit Procurement

Guidance through municipal permitting for residential projects, with support for clients, consultants, and contractors across design, approvals, construction, and occupancy.

Integrated Project Vision

Design Guidance From Concept To Completion

Architectural and engineering services should connect creative vision with practical project delivery. Ortiz Mexia Projects, Inc. coordinates design, interiors, sustainable systems, advanced AI and VR tools, permitting, consultants, contractors, and construction guidance as one considered process. For Los Angeles and Roaring Fork Valley projects, the studio provides hands-on collaboration tailored to each home, site, and client.

Architect presenting a residential design concept
The Ortiz Mexia Difference

Why Choose Ortiz Mexia Projects, Inc.?

A design-led practice connecting architecture, interiors, technology, and construction guidance.

Timeless Design

Elegant architectural character designed to remain meaningful beyond fleeting trends in Los Angeles and Colorado homes.

Integrated Expertise

Architecture, interiors, furniture, cabinetry, and built-ins are coordinated through one design practice.

Technology Forward

AI and VR tools support communication, immersion, and efficient design development throughout the work.

Hands-On Guidance

Clients, consultants, agencies, and contractors receive coordinated support from concept through construction completion.

Meet The Ortiz Mexia Team

Led by founder and principal Santiago Ortiz, the studio brings architectural and fine arts expertise.

Portrait of Santiago Ortiz, Principal and Founder of Ortiz Mexia Projects, Inc.

Santiago Ortiz

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.

Frequently Asked Questions

What are architectural and engineering services?

Architectural and engineering services support the planning, design, documentation, approval, and delivery of a building project. Architecture addresses spatial organization, appearance, materials, and how people experience a place, while engineering coordination helps address technical systems and project requirements. Ortiz Mexia Projects, Inc. provides design, permitting support, consultant coordination, and construction guidance for residential work.

What does an architect and engineer do?

What are engineering design services?

What types of projects does Ortiz Mexia Projects, Inc. design?

Can you help with building permits?

Do you provide construction administration or project guidance?

Do you use virtual reality in architectural design?

Where are architectural design services available?

Have More Design Questions?

Talk with the studio about your project, property, and architectural goals.

Areas We Serve

By appointment, the studio serves residential clients across Los Angeles and Colorado’s Roaring Fork Valley.

Los Angeles & Roaring Fork Valley

Service Area

By Appointment

Availability

Residential Design

Project Focus

Is Your Project In Our Service Area?

Share your location and project goals with the studio for an initial discussion.

Experience & Recognition

Awards and Recognition

American Institute of Architects membership trust indicator

AIA Associate Membership

Professional affiliation held by principal Santiago Ortiz.

Published architectural design recognition

Published Design Work

Work featured in Interior Design Magazine and the Los Angeles Times.

AIA Los Angeles home tour recognition

AIA Los Angeles Tour

Ortiz-Wheeler Residence featured in the Venice Vista Home Tour.

Let’s Shape Your Project Together

Tell us about your property, design goals, and desired scope so the studio can understand how to help.

Contact Us Today

For immediate assistance, feel free to give us a direct call at +1 (310) 600-0241.