Our firm has the depth and experience to provide a consistently high level of professional attention and service, on a timely basis, to meet client and project needs. The firm’s partners, R. Darby Curtis and Mark Ginsberg, are registered architects with over seventy years of combined architectural experience.



Mark Ginsberg FAIA, LEED AP Principal

Mark Ginsberg FAIA, LEED AP, a native New Yorker, is a partner of Curtis + Ginsberg Architects LLP with over 33 years of professional experience in planning, urban design, institutional and housing projects. His expertise in affordable and mixed income housing, resiliency and green design has been recognized through his many lectures at national and local conferences and meetings. Mark has led C+GA’s efforts on developments that comprise well over 10,000 units of housing, most of which are affordable and sustainable.

Mark is a past President of the AIA New York Chapter, former co-chair of the New York New Visions (NYNV) Executive Committee, and an organizer of both the New Housing New York Ideas Competition and Legacy Project. He co-chaired the Post Sandy Housing Task force, and was a member of the AIA National Housing Task Force. Mark is Vice Chair of the Catskill Center for Conservation and Development, is a member of the New York State Association for Affordable Housing (NYSAFAH) Board of Trustees, is a Trustee of the National Housing Conference, and is President of Citizen’s Housing and Planning Council.

Mark is a recipient of The Sarah Powell Huntington Leadership Award for a deep commitment to public welfare and social justice from the Women’s Prison Association and Home Inc.

Mark is a registered architect in the States of New York, Connecticut and New Jersey. He holds a Master of Architecture degree from the University of Pennsylvania and a Bachelor of Arts from Wesleyan University in Theater Design and Government.


Matt Melody RA, LEED AP Senior Associate

Matthew Melody RA, LEED AP grew up in a family of builders, has been on construction sites since the age of 5, and has been working in Architecture for 16 years. His experience in architecture encompasses multi and single-family residential, exterior restoration, urban planning, and boutique hospitality. Matt has volunteered with Habitat for Humanity NYC and as a mentor with The National Building Museum’s Design Apprenticeship DC Youth program. He leads several of C+GA’s housing and planning projects with a focus on zoning, sustainability, and construction administration.

Matt received his Bachelor of Architecture Degree from California Polytechnic State University San Luis Obispo, studied at the Washington-Alexandria Architecture Center in Washington DC, and is a registered architect in New York and California.


R. Darby Curtis AIA Principal

R. Darby Curtis, AIA is the managing partner of Curtis + Ginsberg Architects LLP, providing award-winning architectural services for over 32 years for a wide range of projects in the tri-state area. Darby has led educational, institutional, residential, and commercial projects, with a focus on institutional and not-for-profit clients.

Darby is on the Board of Directors of the Design Trust for Public Space, and a member of its Program and Finance Committees. As a member of the American Institute of Architects New York Chapter, she has taught architecture to New York City elementary school students in Fort Greene Brooklyn through the Learning by Design Committee and was a committee member studying NYC’s adoption of the International Building Code. She is a past member of the Municipal Art Society of New York Preservation Committee, served as the Fellows co-chair, and was on the Fellows Executive Committee.

Darby is a recipient of The Sarah Powell Huntington Leadership Award for a deep commitment to public welfare and social justice from the Women’s Prison Association and Home Inc.

Darby is a registered architect in the States of New York and New Jersey. She received a Master of Architecture degree from Columbia University and a Bachelor of Science in architecture from Washington University in St. Louis.


Sean Flynn RA Senior Associate

Sean Flynn RA brings 29 years of experience working on complex projects, employing innovative solutions to a wide variety of building types in which he has applied his carefully honed skill set to oversee diverse projects at C+GA. These include large scale mixed use, multi-family and institutional projects.

Sean is also deeply engaged in the field of architecture outside of the office: he is a member of The Architecture Lobby, an organization of architectural workers advocating for the value of architecture in the general public and for architectural work within the discipline; he serves as a Content Advisor for the NYC sustainability advocacy website The City Atlas; and was a Founding Board Member of Artist As Citizen, a not-for-profit organization that encourages students and recent graduates in creative fields to engage with issues that impact American society and their own lives.

Sean has been a guest studio critic at Barnard College, NY Institute of Technology, Columbia University, City University of NY and Pratt Institute.

Sean received a Master of Architecture degree from Columbia University and a Bachelor of Fine Arts from The Cooper Union, and is a registered architect in New York.

Senior Associates


Crystal Ng RA, LEED AP BD+C, CPHC Associate, Director of Sustainability

Crystal Yue-Hin Ng, RA, LEED AP BD+C, CPHC brings sustainability and resiliency expertise to architecture and urban design projects at C+GA. Her experience ranges from master planning to construction administration on multi-family, mixed use, and retail projects. Crystal leads several of C+GA’s Passive House/LEED projects and works closely with consultant and contractor on details to achieve higher levels of building performance.

Crystal is deeply committed to building equitable communities. She has collaborated on projects with Open Architecture Collaborative in New York and Architects Without Borders in Seattle. She also served as Vice Chair for the Young Professionals Group of Habitat for Humanity of Seattle/King County.

Crystal received a Master of Science in Architecture and Urban Design from Columbia University and a Bachelor of Architecture from University of Southern California, and is a registered architect in Washington State.




Hsin-Hung (Van) Tsao RA, LEED AP Associate

Hsin-Hung (Van) Tsao, RA, LEED AP is an Associate at C+GA with over 12 years of experience in all phases of projects including schematic design, code and zoning research, design development, construction document production, coordination with consultants, and construction administration. His design focus throughout the entirety of each project allows for comprehensively developed, inviting spaces that have been well-crafted. Project experience includes cluster housing, museums, infrastructure facilities and mixed-use and private residences.

Prior to joining C+GA, Van worked at Tsao & McKown Architects, Handel Architects LLP, and Voorsanger Architects PC.


Tamar Kisilevitz FARA Associate

Tamar Kisilevitz FARA has over 17 years of experience in the architecture and construction industry with a wide variety of residential, hospitality, commercial, and institutional projects. This experience spans a multitude of construction types from low to high-rise density for new development and renovation / adaptive re-use of existing buildings. She brings expert knowledge on building code and zoning to all her projects.

Tamar was formerly a Partner at Scarano Architect, leading award-winning projects including new and rehabilitated residential, hotels and office spaces throughout New York City.

She holds a Bachelor of Architecture and Certificate in Historic Preservation from Pratt Institute. Tamar is a Registered Architect in the State of New York.



Bryan Tooze RA, LEED AP Associate

Bryan Tooze, RA, LEEDAP has been practicing architecture for over 15 years. His design and technical expertise on multi-family and mixed use projects, NYC zoning and building codes, sustainable design, and BIM/REVIT informs his leadership role at the firm. His prior experience, both in Canada and in New York, includes a range of public and private projects at many scales, from housing, cultural and recreational facilities, to infrastructure, and large-scale urban development and master plans.

Bryan received Bachelor of Architecture degree from University of Waterloo, Canada, and is a registered architect in New York State.


Daniel R. Garthe RA Associate

Daniel Garthe, RA has nearly 30 years of experience in the architecture and construction industry with a wide variety of residential, commercial, and institutional projects. His involvement in the design and construction of environments for learning and multi-family housing includes on and off-campus student residential development of over 5,000 beds of student housing throughout the US. This experience spans a multitude of construction types from low to high-rise density in public and private settings.

Daniel holds a Bachelor of Architecture from Drexel University and is a Registered Architect in New York.


Tobie Cornejo AIA Associate

Tobie Cornejo, AIA, as a project manager at C+GA, is leading construction of a new multi-family and mixed-use project in East Harlem, and recently completed the rehabilitation of a large portfolio of existing affordable housing stock in Brooklyn, as part of a partnership between a developer and a community-based housing organization. In addition, she has led interiors projects for multiple higher education institutions and is currently completing a feasibility study for a prominent not-for-profit organization.

Tobie’s prior work, at both small and large architecture firms, spans a range of project types, including medical school facilities, a not-for-profit headquarters, master plans for waterfront and urban redevelopment sites, the conversion of an historic mill to market-rate apartments, as well as high-end single-family and residential interiors.

She has long-standing experience and interest in public design, advocacy, and outreach. In New York, she worked at the AIA New York Chapter/New York Foundation for Architecture and the Design Trust for Public Space and was a founding member of the Architecture and Design Circle at the Museum of Modern Art. Before then, in Washington, D.C, she volunteered at the DC Preservation League, teaching high school students about architecture. She began her career as an economic researcher at the Board of Governors of the Federal Reserve.

Tobie received a Master of Architecture degree from Columbia University and a Bachelor of Arts in Economics from Williams College. She is a registered architect in the State of New York.


  • Christine Berry RA, LEED AP, CPHC
  • Zoey Cai
  • Vicky Cameron AIA NCARB
  • Rick Casey
  • Nai-Hua Chen Assoc. AIA, LEED AP BD+C
  • Shao-An Chiu
  • Alyssa Clayburn
  • Robert Crabtree RA
  • Ryan Esparza AIA
  • Karla Gutierrez RA
  • Mitchell Hartig RA, LEED Green Associate
  • Jie Hu
  • Ashley Journeay
  • Chintan Kamdar
  • Kevan Kasmai
  • Mallak Kassem
  • Schuyler Klein RA, LEED Green Associate, WELL AP
  • Ricardo Marquez
  • Shreejit Modak Assoc. AIA
  • Pankaj Nauriyal
  • Christopher Perrodin RA
  • Bianca Pinsker RA
  • Christine C. Raftery
  • Maxime St. Pierre
  • Anthony Samaha
  • Carlos Solis-Keyser
  • Caroline Stern
  • Daniel Vocino
  • Zachary Weimer RA
  • Hsiao Hsueh (Shirley) Yao
  • Weijia Zhang RA