Custom Home Architect vs. Builder: Which One Do You Need?

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.

Architect and builder reviewing custom home plans at a residential project

Our Custom Home Design Services

Integrated residential design, permitting, visualization, interiors, and construction guidance for custom homes and renovations.

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.

Permit Procurement

Receive guidance through building permit procurement, with coordination among clients, consultants, contractors, and municipal agencies throughout the approval process.

Construction Guidance

Continue with informed project guidance from design through construction, helping align the built result with the approved design and the client’s goals.

Interior Design

Coordinate interiors, custom furniture, cabinetry, and built-ins as part of a unified residential environment rather than treating each element as an afterthought.

Remodels And Additions

Plan thoughtful additions, alterations, renovations, and historical preservation work while responding to the existing home and its architectural character.

VR Design Immersion

Use virtual reality and three-dimensional models to help clients experience proposed spaces and make more informed design decisions during the process.

Integrated Design Guidance

Bring Design And Construction Into Alignment

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.

Architect presenting a custom home design to homeowners
The Ortiz Mexia Difference

Why Choose Ortiz Mexia Projects, Inc.?

Get an integrated design perspective for complex residential decisions and project coordination.

Integrated Expertise

Coordinate architecture, interiors, furniture, cabinetry, and built-ins through one connected design practice.

Timeless Design

Create elegant residential environments designed to remain meaningful beyond short-lived trends.

Technology Guided

Use AI, BIM, and VR tools to improve communication, visualization, and design coordination.

Hands-On Collaboration

Support clients, consultants, contractors, and municipal agencies throughout the project’s evolving requirements.

Meet The Design Principal

Learn about the architect leading Ortiz Mexia Projects, Inc.

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

How much does it cost to have a house designed by an architect?

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.

What is the difference between a custom home architect and a builder?

Do I need both an architect and a builder for a custom home?

Can an architect help obtain building permits?

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

Can an architect help me choose or work with a builder?

Can I see my custom home design before construction begins?

Does Ortiz Mexia Projects, Inc. serve my area?

Still Comparing Your Options?

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

Service Areas Served

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

Planning A Home Project Nearby?

Confirm availability and discuss your location with the design studio.

Published And Recognized

Awards and Recognition

Associate AIA membership recognition

Associate AIA Membership

Professional affiliation held by principal Santiago Ortiz.

AIA Los Angeles home tour recognition

AIA Los Angeles Tour

Residence featured in the Venice Vista Spring Home Tour.

Published residential design work recognition

Published Design Work

Work featured in Interior Design Magazine and Los Angeles Times.

Clarify Your Custom Home Path

Share your property and goals to explore whether architectural design, construction guidance, or both fit your project.

Contact Us Today

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