Join Nick Dean, AIA, 2022 Chair of the Small Firm Roundtable, and his Vice Chair Laura Baggett, AIA, as they enjoy a cup of coffee and conversation with Peter Pfeiffer, FAIA and Oren Mitzner, AIA.


Peter Pfeiffer, FAIA

An Architect, Interior Designer and Building Science Consultant, Peter is professionally licensed in Texas, New York and New Jersey. He holds a Masters in Architecture, with an emphasis in environmentally-sensitive design & energy studies from the University of Texas at Austin, and a Bachelor of Science degree in Building Sciences from Rensselaer Polytechnic Institute. Pfeiffer is a LEED accredited professional who has spent 35+ years designing and developing pragmatic high-performance buildings that effectively respond to global warming.  As the founding principal of Barley|Pfeiffer Architecture, a firm recognized nationally for its pioneering use of climatically responsive building design and construction techniques, he continues to push design and performance to its next, better, level.  

In 2004 he was named a Fellow of the American Institute of Architects for his lifelong achievements in "mainstreaming Green Building" - one of the earlier Architects in America to be recognized for such.    Residential Architect magazine cited him as one of the 10 most influential architects of the decade.  Peter was nominated for the prestigious Hanley Award for his meaningful efforts to advance Sustainability in North America. In 2019 at the International Builders Show, Peter was awarded the National Green "Superhero" of the year by Green Builder magazine.  More recently he was selected to speak at the prestigious SXSW conference addressing Architecture and its effect on Climate & Social Action.

Oren Mitzner, AIA

Having enjoyed tinkering and working with his hands from a young age, it was natural for Oren to find his way into the field of Architecture. While earning Bachelor of Architecture and Master of Architecture degrees from Tulane University, Oren had the opportunity to work on design/build projects through the URBANbuild program and the Albert and Tina Small Center for Collaborative Design. During that time, he gained valuable insight making design decisions and developing construction details on site, while maintaining the goals of creating efficient and affordable spaces that respond to their users and environments.

Oren has managed projects in New Orleans and Austin, ranging from small park memorial sidewalks to large scale commercial buildings. He has extensive experience in the custom residential, retail and hospitality markets, and is an integral part of the design and production team at Barley|Pfeiffer Architecture. Oren is a member of the American Institute of Architects, holds a National Council of Architectural Registration Boards Certificate and is a licensed Architect in the state of Texas.

Although not an Austin native, Oren has adapted to the city he calls home by quickly learning it’s unique ins and outs and becoming involved with the community. He works with multiple organizations focusing on youth and professional development, as a volunteer and in leadership capacities.


Barley|Pfeiffer Architecture’s core strength is designing high-performance homes and buildings that are beautiful and timeless.   Recognized for their attractive design, integrity, and ability to stand up to the elements – they are less expensive to own, operate, and maintain, are healthier to occupy, and are more comfortable to live and to work in.

Their “Comprehensive Design” approach means they engage in all aspects of a project from thoughtful initial project programming and site-planning, to award-winning interior design and kitchens, green building strategies and analysis, mechanical systems design, dramatic lighting design that doesn’t sacrifice practicality and comfort, as well as full construction administrative services. Their scope of work can be tailored to fit the budget, schedule, and specific needs of their clients and their projects.

While they do not have a set style, their projects are designed to “live” particularly well with their site, paying close attention to the site’s micro-climate and setting – all while blending cohesively with their client’s tastes, goals and aspirations. Comprehensive Design blended seamlessly with Innovative Building Science!

BARLEY & PFEIFFER’S work has been featured in many national and international venues including the American Institute of Architects national conventions, the US Green Building Council’s GreenBuild annual conferences and the National Association of Home Builders’ International Builders Shows.   Their designs have been showcased in several publications including Better Homes & Gardens, Fine Homebuilding, The Washington Post,  and USA Today. To “get the word out on Green,” BPA has been featured on National Public Radio, PBS – TV, HG-TV, and The Today Show along with being featured in several acclaimed books such as The Not So Big House series.  The firm is also proud of its continued participation in many local, regional, and national home tours.