Alloi

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Description

Alloi is an architect-led design-build studio creating homes that balance beauty, performance, and resilience. Founded by architect and general contractor Marcos Santa Ana, Alloi integrates design and construction under one roof, ensuring that every detail—from concept to completion—supports both vision and execution. The result is a seamless process and spaces that are thoughtful, enduring, and deeply personal.

Our philosophy is rooted in the belief that great architecture is not only about aesthetics but also about how a space supports life. Drawing from Japanese and Scandinavian influences, we design homes that feel calm, balanced, and connected to nature. We integrate high-performance building practices, Passive House principles, and fire-resilient strategies to create homes that are energy-efficient, healthy, and future-ready.

Services

Full-service architecture
Design-build project delivery
Interior architecture and design
Landscape design
Passive House and high-performance design
Fire-resilient and wellness-focused homes
Real estate and feasibility studies

We also offer free digital consultations for homeowners who have lost their homes to recent fires. Consultations can be booked here: alloi.us/booking

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Gallery

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Firm Details

Building Type:
  • Single-family home
Fire Recovery area architect is available to work in:
  • Altadena
  • Pacific Palisades
Project scope architect offers for fire recovery:
  • New Home from New Design
  • Rebuild Previous Home with Changes or Upgrades
Project size:
  • 2000 sq ft or Less
  • 2001 sq ft to 5000 sq ft
  • 5001 sq ft or More

Sustainability Expertise & Credentials

Sustainability Expertise: Yes
Sustainability Expertise & Credentials:

Alloi integrates sustainability into every project through Passive House design, high-performance building science, and fire-resilient strategies. Our expertise ensures homes are energy-efficient, healthy, and protective, with superior air quality and comfort. Founder Marcos Santa Ana is a Certified Passive House Designer (CPHD), Licensed Architect, and Licensed General Contractor, aligning vision and construction for resilient, enduring design.

Fire Resiliency Experience: Yes
Fire Resiliency Experience Details:

Alloi has extensive experience designing and rebuilding homes in Very High Fire Severity Zones, including Pacific Palisades and Altadena. We combine non-combustible exteriors, ember resistant detailing, and defensible landscaping with Passive House strategies that ensure airtight envelopes, advanced filtration, and superior indoor air quality. The result is homes that provide safety, comfort, and peace of mind even in the face of wildfire events.

Architectural Styles: California Contemporary, Mid-century Modern, and Modern

Contact Information

Contact Person: Michelle Woo
Address: 5968 Washington Blvd
90232
Phone: 310-299-0801
Email: hello@alloi.us
Website

Architect Member or Associate* Member

Architect AIA Member: Yes
*If Associate AIA Member: Associate AIA Members are not licensed as Architects, but can design certain types of residential buildings or portions of residential buildings in California. For details, please see pages 3-4 of the California Architects Board’s Consumer’s Guide to Hiring an Architect: https://www.cab.ca.gov/docs/publications/consumers_guide.pdf

Architectural Styles

Modern
California Contemporary
Mid-century Modern