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231 East 22nd Street, Suite 23 New York NY 10010

Fax: +88 (0) 202 0000 001
WB Melvin staff image grid


Walter B. Melvin Architects, LLC employs the best people and technologies to meet the challenges of each project. Our 35-member firm includes a cohesive staff of architects, preservationists, technical personnel and administrative support. We assemble teams with the appropriate knowledge and skills to match the scope of work of each unique project. As hands-on survey and on-site assessment are important components of our work, all of our key personnel are trained for supported and suspended scaffold access.


  • Robert C. Bates, RA, AIA
  • Martin Lee Griggs, RA
  • Sergio De Orbeta, RA, AIA, NCARB


  • Bruce Barton, RA, AIA
  • Christopher Girr
  • Dorian Yurchuk, RA, LEED AP BD+C


  • Benjamin Fallows, RA, ARB
  • Anne Hinsman, RA, LEED AP

Technical Directors

  • Barbara Endes
  • Janet Shelley Perusini
  • David van Erk

Project Managers

  • Karen Brinkman, RA
  • Gabriela Brito
  • Nicholas Capozzoli
  • Melanie Colter-Medrano
  • Jacob Gavigan
  • Alison LaFever, LEED AP
  • John Lane
  • Eileen Murdock
  • Thomas Rinaldi
  • Megan Rispoli, Marketing Coordinator
  • Christian Velez
  • Ana Felisa Viana

Technical Personnel

  • Sallishah Ali
  • Jing Ying Chin
  • Siobhan O’Gorman
  • Lindsay Papke
  • Rudolph Pierre
  • Kristine Roodal
  • Genny Schiel
  • Archi Shah
  • Van Staggers II

Administrative Staff

  • Michelle Duncan-Torres, Office & Construction Documents Administrator
  • Gregory Larangeira, Office Filing Representative
  • Jennifer Murray, Business Manager

Sergio De Orbeta


Sergio De Orbeta

With over 19 years of experience in the field, Sergio has been instrumental in the successful restoration, repair, and continued maintenance of numerous historic structures in New York City and beyond.  13 of those years have been at WBMA, where he has taken a detailed and methodical approach to his projects. Some of his noteworthy ongoing projects include Casa Italiana, Columbia University; The Osborne; 100 Hudson Street; 525 Park Avenue; 130 East End Avenue; and 300 West 108th Street.  Previous award-winning projects include 131 Duane Steet – the Hope Building, 451 Broome Street, Donald Judd Home & Studio, and Marymount School of New York.  He is a Registered Architect in the States of New York and New Jersey. Originally from Puerto Rico, Sergio received his Master of Science in Historic Preservation from the University of Pennsylvania and Bachelor of Architecture with a Minor in Architectural History from Carnegie Mellon University.



University of Pennsylvania, Philadelphia, PA
Master of Science in Historic Preservation

Carnegie Mellon University, Pittsburgh, PA
Bachelor of Architecture
Minor in Architectural History

Professional Registration

Registered Architect in the States of New York and New Jersey

Martin Lee Griggs, RA

Martin Lee Griggs

Martin has worked in the architecture and construction industry for over 30 years, including 26 years at WBMA specializing in the assessment and repair of exterior envelopes. He has overseen several award-winning restoration projects including St. Paul’s Chapel – Columbia University, 451 Broome Street, Liberty Tower and Alwyn Court, as well as restoration projects at Louis Sullivan’s Bayard-Condict Building, the Cosmopolitan Club, several City parks and residential cooperatives. Martin is well versed in the myriad building materials that have been used in the northeast and has extensive experience assessing and restoring a variety of masonry and roofing systems. He is a graduate of the University of Southern California and is a Registered Architect in New York State.

University of Southern California, Los Angeles, CA
Bachelor of Architecture

Professional Registration
Registered Architect in the State of New York

Robert C. Bates


Robert C. Bates

With 35 years of professional experience at WBMA, Robert has overseen restoration projects at many of New York City’s premier institutions, including The Met Cloisters, Donald Judd Home and Studio, Green-Wood Cemetery and Riverside Church, as well as McKim Mead and White’s 998 Fifth Avenue and William Tuthill’s Schinasi Mansion at 351 Riverside Drive. A graduate of Lehigh University, Robert is a Registered Architect in the States of New York, New Jersey and Connecticut, as well as a member of the American Institute of Architects. He has a strong understanding of traditional building materials and has developed many new restoration techniques over the years. Robert has published articles on waterproofing of historic masonry walls, restoration of cast iron, and roofing replacement.



Lehigh University, Bethlehem, PA
Bachelor of Art in Architecture

Professional Registration

Registered Architect in the States of New York, New Jersey and Connecticut