PSF Projects is an architecture and design firm based in New York City. Through collaboration between the principals, designers, consultants, and our clients, we provide work that is creative, thoughtful, and serves both the pragmatic and poetic needs of the occupants. We strive to create structures and places that are engaging and enduring, and reflect a commitment to careful detailing and the craft of construction.

PSF was formed in 2015 by Principals Jonah Pregerson, Mark Sofield, and Barrett Feldman, to leverage the depth and diversity of their individual experience in architecture, planning and design. We have worked on a broad range of programs including commercial, institutional, single and multifamily residential, mixed use, recreational, workplace, and campus and urban planning.

Our process is the same across all project types. First we listen to our clients, asking a lot of questions regarding their program, budget, and aspirations. Then we diagram, hand-sketch and eventually digitally model multiple design options. We use these visual tools to iteratively distill the program needs, site constraints, and client and consultant input into a final, unique design.

PSF is recognized as a Women Owned Business by New York State,
New York City and The Port Authority of NY & NJ.


PSF Principals

Mark Sofield

Prior to establishing PSF Projects with his partners in 2015, Mark spent 15 years as the Town Architect for Prospect New Town in Longmont, CO, internationally recognized for it's innovative planning and architecture. Concurrently, he maintained a practice designing single and multi-family residential, mixed-use, commercial, and institutional projects around Colorado. With a background in finish carpentry, millwork fabrication, and furniture design, Mark is deeply interested in the potential for the craft of building to generate meaning in architecture. He earned his BA in Studio Art at Brown University, an MFA in Printmaking at RISD, and an M. Arch. at Yale.

Mark is a registered architect
in Colorado and Massachusetts

Barrett Feldman

Before co-founding PSF Projects, Barrett held key roles in the design and project management for a diverse array of noteworthy projects including the Austin Texas Federal Courthouse, the Lady Liberty Charter School Academy in Newark, and the Two Alliance Center in Atlanta. She gained valuable experience working at GLUCK+, Mack Scogin Merrill Elam Architects, and Rogers Marvel Architects. Barrett earned her BA from Wesleyan University with High Honors in Studio Art, also receiving the Jessup Prize and she earned an M. Arch at the Harvard Graduate School of Design. Following graduate school, she spent a year in Tokyo as a Fulbright Fellow.

Barrett is a registered architect
in New York

Jonah Pregerson

Jonah spent 8 years as the principal of The Office of Jonah Pregerson. He designed dozens of residences in and around New York City, in addition to a diverse range of small and medium sized commercial projects. Jonah brings a depth of experience navigating the NYC Building Code and Department of Buildings permit process. His prior experience also includes project manager and design lead on the Professional Children’s School in New York City, and designer for a resort in Costa Rica. Jonah spent several years working at both Steven Harris Architects and Anderson Architects in New York City. Jonah earned his undergraduate degree in Urban Studies and Planning at the University of California and his Master’s degree from the Yale University School of Architecture. 



PSF Team

Mark Bejarano

Mark Bejarano joined PSF at its founding in 2015.  Prior to joining PSF he worked with Partner Mark Sofield for fifteen years in the Boulder, Colorado area on residential mixed-use, multifamily, and single-family projects.  Since joining PSF, he has worked on nearly every project in the office. He brings a facility with digital modelling as well as a practicality and efficiency honed for four years working at a Structural Engineering firm.  Mark has a Bachelor of Environmental Design and Architecture from the University of Colorado at Boulder where he graduated with honors. 

Edward Fabian

Edward Fabian started working with PSF in 2014.  As a consultant with deep experience in all aspects of millwork production, he has a facility for problem solving and anticipating fabrication challenges thereby bringing the realities of construction to the design process. He was a partner in a small design-build studio for four years and most recently managed a woodworking studio in Brooklyn for seven years. Ed has a Bachelor of Science in Architectural Studies from the University of Illinois at Urbana/ Champaign and went to graduate school for architecture at the University of Florida.  Ed taught architecture at Drury University’s Hammons School of Architecture in Springfield, Missouri.

Estrella Vanini

Estrella Vanini joined PSF in 2020. Estrella splits her time between supporting PSF’s business development pursuits, visual content creation, and working as an architectural designer. Prior to joining PSF she worked on several fast-paced retail buildouts and residences. Estrella has a Bachelor of Fine Art from Parsons School of Design|The New School for Design with a major in Architectural Design and a minor in Communication Design. 

Jonathan Watkins

Jon Watkins joined PSF in 2019. Jon enjoys working on the widest range of projects and is experienced creating representation, design, and documentation for a project from start to finish.  An engaged collaborator with a strong basis in conceptual thinking and schematic design from 3 years working for an internationally recognized academic practice, Jon regularly contributes to PSF’s pre-design efforts, RFPs, and research endeavors. Jon has a Bachelor of Fine Art from the Sam Fox School of Design and Visual Art at the Washington University in St. Louis where he majored in Sculpture and Philosophy and later earned a Master of Architecture from the Taubman College of Architecture and Urban Planning at the University of Michigan.

Sarah Zamler

Sarah Zamler joined PSF in 2021 and brings four years of previous experience as an architectural designer for single and multi-family residential projects at Seattle based firms.  A clear communicator verbally and visually Sarah coordinates design across consultants and the internal team throughout design process. She has contributed to proposals and graphics for RFPs. Throughout her education Sarah served on numerous committees, was a teaching assistant, and collaborated on design competitions.  Sarah has a Bachelor of Science in Architecture with a Minor in Sustainability from the University of Michigan and a Master of Architecture from Columbia University GSAPP. 

Brenda Braithwaite

Brenda Braithwaite has served as a consultant to PSF since 2019, providing bookkeeping, payroll, and financial reporting. She has a Bachelors in Business Administration from Baruch College and an Master in Business Administration (MBA) in Accounting from Long Island University.

Former Staff

Felipe Calderon

Eva Capova

Tyler Hardie

Allen Pierce

Juan Tejedor

Pauline Van Rensburg

Gregory Horen

Nicole Kotsis

Evan Ortiz

Emily Bible 

Isabela Bucciarelli

Luke Butler