About Us

High-performance architecture that harmonizes with nature — from Carmel-by-the-Sea to the world.

EcoLogic team at the 2023 Orange County Sustainability Decathlon awards OC Sustainability Decathlon · 2023
Our Mission

Contemporary tools, in harmony with nature

At EcoLogic Architects, our mission is to create high-performance architecture using contemporary design tools that harmonize with nature. Based in Carmel-by-the-Sea in Central California, we serve clients locally and globally — our work spans continents and diverse functions, from modest residential spaces to urban-scale projects.

We aim to harmonize functional beauty, energy efficiency, and ecological integrity, celebrating space and form for maximum human comfort and enjoyment.

  • Based in downtown Carmel-by-the-Sea, CA
  • Serving local & international clients since 2005
  • Overall 1st Prize — 2023 Orange County Sustainability Decathlon
Leadership

Meet the founder

Thomas Rettenwender, Founder & Principal · M.A., M.Arch., LEED AP, Architect

Thomas Rettenwender

Founder & Principal · M.A., M.Arch., LEED AP, Architect

Thomas Rettenwender is Founder and Principal Architect of EcoLogic Architects, with over 25 years of diverse architectural design experience. His university studies with Zaha Hadid, Greg Lynn, and Wolf Prix of Coop Himmelb(l)au in Vienna, Austria, taught him to deliver signature architectural designs that harmonize a contemporary style with the flow of the landscape and the movement of the human body.

His apprenticeship with Big Sur architect Mickey Muennig and Paul Kephart of Rana Creek informed his work with an extensive ecological design vocabulary, while his work with William McDonough and Amory B. Lovins inspired a forward-thinking, sustainable and energy-efficient design approach. Thomas has created and taught green building courses at UC Santa Cruz, Hartnell College, Monterey Peninsula College, Rancho Cielo Construction Academy and San Jose Community College since 2009.

  • Masters of Architecture — University of Applied Arts, Vienna, AT
  • Architects License — California Architects Board
  • Virtual Design & Construction Teaching Certificate — Stanford University
  • B.A. Philosophy & Mathematics — Trinity College, Dublin, IE
🏆 Overall 1st Prize — Nexus_01 Healthy Prototype Home, OCSD 2023
The Team

The people behind the plans

Paola Ulloa, Architect

Paola Ulloa

Architect

Holding a Bachelor's Degree in Architecture from UAM, Mexico City, Paola has cultivated a passion for sustainable design and ecological practices for over a decade — developing interior design, landscape services and architectural proposals across the USA, UK and Australia. She was a key contributor to the award-winning Nexus_01 project built at the Rancho Cielo Construction Academy in 2023.

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Alberto Hernandez

Civil Engineer

Alberto is a structural engineer with many years of experience providing structural design solutions for residential and commercial projects. With a Bachelor's Degree in Civil Engineering, he is also an expert at surveying structures to prepare architectural and structural as-built CAD drawings for projects in need of structural repairs or remodeling.

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Nestor Ramirez

Civil Engineer

Nestor is a Licensed Civil Engineer originally from Mexico, proficient in AutoCAD, Revit and Navisworks. He is highly passionate about Building Information Modeling (BIM) and Virtual Design and Construction (VDC) technology, integrating innovative solutions into civil engineering projects for an efficient, collaborative design process.

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Ecologic Architects has been serving a diverse spectrum of local and international clients since 2005.
Downtown Carmel-by-the-Sea · California

Let's build something together

Work directly with our architects and engineers on your next project.