Established in 1991, Harrison Design now has seven offices across the U.S. Each location works independently while being able to draw on its collective capabilities and expertise.


Harrison Design specializes in high-end residential architecture, interior design and landscape architecture for clients throughout the U.S. and abroad. From traditional to modern, our body of work represents the full spectrum of scale and style.

We apply the same attention to quality and detail in all our work, including studios dedicated to sacred architecture, condominiums and townhomes, and community development.

We’ve developed a reputation for excellence in design, responsiveness to clients, and unparalleled project execution. Our international network of artisans, builders and suppliers ensures that the quality of the design is matched by the caliber of the material and workmanship. Our work has garnered numerous awards and been featured in design publications, including Architectural Digest, Architect, Veranda and Traditional Home, among others.


Gregory L. Palmer


Greg is the principal architect in Harrison Design’s Naples office, which he opened in 2017. He started with the company in 1995, after working with several firms in Atlanta. His expertise includes institutional, residential, hospitality and resort planning and he is registered in Connecticut, District of Columbia, Florida, Georgia, Illinois, Maryland, Missouri, New York, North Carolina, Pennsylvania, Virginia and Wyoming. Greg earned a bachelor’s degree in architectural engineering technology from the Southern Technical Institute (now known as Kennesaw State University) in Marietta, Ga. He’s a member of the National Council of Architectural Registration Boards, the American Institute of Architects, Southern Architectural Foundation, National Trust for Historic Preservation and is a past president of the Institute of Classical Architecture & Art Southeast chapter (ICAA). In 2013, he served as a juror for the Acanthus Awards of the ICAA’s Chicago chapter.

Richard C. Hatch


With bachelor’s degrees in architecture and architectural engineering from the Southern Technical Institute (now known as Kennesaw State University) in Marietta, Ga., Rick was named a firm principal in 2009. Rick started his career as a draftsman for an architecture office in Marietta and joined Harrison Design in 1998. He is a mentor for the East Cobb Robotics Team of Marietta, Georgia. Along with the American Institute of Architects, he is a member of the National Historical Society, National Trust for Historic Preservation, Georgia Trust for Historic Preservation, and the Institute of Classical Architecture and Art.

John J. Albanese


After earning his Bachelor’s of Architecture degree at the University of Kentucky in Lexington, John received his Master’s of Architecture from the Virginia Polytechnic Institute in Blacksburg, Va. He began his career as a draftsman with a firm in Sayville, NY, before moving to Georgia in 1997. In 1999, John joined Harrison Design as a project manager and 10 years later, was named principal. He’s a registered architect in Arkansas, Connecticut, Georgia, New Jersey, New York, North Carolina, South Carolina and Tennessee. He’s a member of the American Institute of Architects, Institute of Classical Architecture & Art, National Trust for Historic Preservation and a certified member of the National Council of Architectural Registration Boards. John is also on the 2020 Chastain Park Conservancy Board of Directors.

Anthony P. Spann


Tony is managing principal of the Los Angeles and Santa Barbara offices. In 2004, he merged his architecture practice in Santa Barbara with Harrison Design, establishing the company’s first West Coast office. In 2007, he opened the firm’s Los Angeles studio. The Chicago native earned his bachelor’s degree in architecture from the University of Illinois at Chicago Circle. He’s a registered architect in California, Illinois, Nevada and Oregon. Currently Tony serves on the Design Review Commission of the City of Beverly Hills. For 11 years, he sat on the Montecito Board of Architectural Review for the County of Santa Barbara and the City of Santa Barbara’s Historic Landmarks Commission for eight years. He’s a member of the American Institute of Architects (AIA). Along with other honors, the AIA Santa Barbara chapter awarded him the Honor Award for Architectural Heritage in 2016.

Jesse J. Harrison


Jesse joined Harrison Design’s Los Angeles office in 2010 as business development director. Prior to that, Jesse had cofounded a company in Atlanta that brands, markets and manages luxury properties for event, media, television and film partnerships. His previous experience includes directing a contemporary art gallery in Atlanta and specializing in marketing fine art for the Atlanta Decorative Arts Center. He’s a founding member of UNICEF NextGen Los Angeles; is on the development committee of the Los Angeles Conservancy; served on the advisory board of DIFFA: Design Industries Foundation Fighting AIDS in Los Angeles, and is a member of the Institute of Classical Architecture and Art.

Bulent A. Baydar


While working with Harrison Design, Bulent helped establish offices in Santa Barbara, Calif., in 2004 and Washington, D.C. in 2010. He is a registered architect in Georgia, Florida and Virginia, and received his Master of Architecture at the Georgia Institute of Technology in Atlanta, where he also earned his bachelor’s degree in architecture. He joined Harrison Design in 1995 and has been a principal since 2014. Bulent is a member of the American Institute of Architects, Institute of Classical Architecture & Art (ICAA), National Trust for Historic Preservation and National Council of Architectural Registration Boards. His work was awarded a 2008 Shutze Award from the ICAA.

Karen H. Ferguson


In 2000, Karen launched Harrison Design’s interior design practice and she has dedicated her professional career to the firm. Her expertise covers every aspect of interiors, from space planning to selecting and creating custom finishes, furnishings and accessories. In 2019, Karen was named Southeast Designer of the Year by the Atlanta Decorative Arts Center and Veranda magazine. The Georgia chapter of the American Society of Interior Design (ASID) has recognized many of her projects, including Residential Residence (3,000 to 7,000 sf) Silver and Residential Renovation-Existing Kitchen Silver in 2020. She earned her bachelor’s degree in furnishings and interiors from the University of Georgia, Athens. Karen recently designed a rustic-yet-modern lake house in Blue Ridge and is currently working on various projects, including a full-scale refresh of a classic Hawaiian cottage in Maui.

Barbara Lowenthal


Since joining the Santa Barbara office in 2005, Barbara has led Harrison Design’s West Coast interiors practice. With a Certificate of Design from the University of California at Santa Barbara-Extension, Barbara’s work spans residential, hospitality and commercial design. Actively engaged in the design community, she’s a founding member and member emeritus of both the Pearl Chase Society Board and the Courthouse Legacy Foundation Board. Barbara is a past Docent Board President and member of the Museum of Art Docent Council. Previously, she was on the City of Santa Barbara Historic Landmarks and Planning Commissions. In 2007, Barbara received the Saint Barbara Award from the City of Santa Barbara for outstanding service to enhance and preserve the built environment of Santa Barbara.

Chad E. Goehring


Chad leads the firm’s St. Simons, Ga., office, which opened in 2006. He joined Harrison Design in 2001 and was a project manager in Atlanta before moving to St. Simons to establish the practice. He’s a graduate of Southern Polytechnic State University (now known as Kennesaw State University) in Marietta, Ga., where he earned a bachelor’s degree in architecture. Chad began his career as a CAD technician in Duluth, Ga. His professional affiliations include the American Institute of Architects and the Institute of Classical Architecture and Art, and he volunteers for the annual RSM Classic PGA tour event hosted by Davis Love III.

Mark D. Hughes


Before joining Harrison Design in 2012, Mark led his own practice, Hughes Architecture, in McLean, Va. His work encompasses architecture and space planning for residential, commercial, historic, retail and hospitality projects in the D.C. area. For almost 20 years, he was a partner with an architecture firm in Bethesda, Md. Mark earned his master’s and bachelor’s degrees in architecture from the University of Maryland, College Park, and is professionally registered in Virginia and Maryland. He is a member of the American Institute of Architects and the Institute of Classical Architecture and Art.

Anthony Grumbine


With his Master of Architecture from the University of Notre Dame, Anthony joined Harrison Design in 2007. He received his bachelor’s degree in architectural studies with high distinction and a bachelor’s degree in art history with distinction from Carleton University in Ottawa. Anthony serves on the City of Santa Barbara’s Historic Landmarks Commission and the Board for the Santa Barbara Trust for Historic Preservation. He is a regular walking tour leader for a number of local groups, including the Coalition for Sustainable Transportation. An accomplished artist in watercolor renderings and architectural drawing, Anthony regularly contributes articles regarding architecture to a number of local publications.

Alan Williamson


Alan joined Harrison Design in 2014 after 23 years managing his own firm in Fort Payne, Ala.  He received his bachelor’s degree with honors in architecture from Yale University in New Haven, Conn. and a Master of Architecture degree from Harvard University Graduate School of Design in Cambridge, Mass.  He maintains his National Council of Architectural Registration Boards certification and is currently a registered architect in Alabama and Georgia.  Alan has been active in the American Institute of Architects for more than 25 years and is a past president of its Northeast Alabama Chapter and Alabama Council.

Emily Schickner

Principal Architect, AIA, Atlanta

Architect Emily Schickner joined Harrison Design’s commercial studio in 2017 and was promoted to director in 2019. She earned her Master of Architecture degree from the Georgia Institute of Technology in Atlanta in 2013 and her Bachelor of Arts in architecture from Miami University in Oxford, Ohio, in 2007. Emily started her career with architecture firms in Cincinnati and Marietta, Ga. Beginning in 2020 she will be a regional director of the American Institute of Architects’ South Atlantic Region’s Young Architects Forum. She’s also a certified member of the National Council of Architectural Registration Board and serves on its ARE 5.0 Development Subcommittee. Until age 16, Emily lived in Tokyo and attended the American School in Japan for six years.

Betsy McBride

Principal, Interiors, ASID, Atlanta

Betsy leads the commercial interiors studio in Atlanta. She joined the firm’s residential interiors studio in 2013, before opening the commercial interiors studio in 2019. Betsy holds two bachelor’s degrees: Art History at the University of Georgia and a Bachelor of Fine Arts in interior design from the Art Institute of Atlanta. She began her professional interiors career as a kitchen and bath designer before working for a number of high-end residential design firms in Atlanta. Betsy is a registered interior designer, receiving her NCIDQ certification in 2018.

Nicolas Charbonneau


Nic earned his master’s degree in architecture from the University of Notre Dame in South Bend, Ind., and worked with several Washington, D.C. firms before joining Harrison Design in 2015. With 15 years’ experience in religious architecture, Nic is the lead architect of the firm’s religious architecture studio. Nic is the instructor and tour guide for the National Cathedral School’s New Heights Architectural Discovery Program in Washington, D.C.; the visiting architecture critic for the Catholic University of America’s School of Architecture; as well as a member of the Education Board for the Institute for Classical Architecture & Art, Mid-Atlantic Chapter.

Christopher Stoddard

Director, AIA, NEW YORK

With degrees in Interior Design and Architecture, Chris is uniquely qualified for his role with the firm. He earned his bachelor’s degree in Interior Design from Purdue University in West Lafayette, Ind., before receiving his Master of Architecture from the University of Miami, where he spent a semester studying in Rome. After graduation, Chris trained in the firm’s Atlanta office before returning to his home state to join the New York office. Chris is a member of the American Institute of Architects.

Robert A. Tretsch III


Robert joined Harrison Design in 2003 and is the director of the firm’s Modern Studio. He earned a bachelor’s degree in architecture from Syracuse University in New York. Robert began his career as an intern at TVS Design in Atlanta before working for firms in Princeton, N.J., and Atlanta. His professional affiliations include the American Institute of Architects, National Council of Architectural Registration Boards and Rotary Club of Buckhead.

R. Derek Hopkins


Derek is a graduate of North Carolina State University in Raleigh, where he earned a bachelor’s degree from the School of Design. He joined Harrison Design in 1999 and now serves as project manager.  Derek’s portfolio of work includes residential, multifamily, retail and hospitality, with projects spanning from Montecito, Calif., to the “Gold Coast” of Long Island, NY.  His professional affiliations include the American Institute of Architects and the Institute of Classical Architecture & Art.

Robbie Pich


Robbie earned his bachelor’s degree in architecture from Auburn University in Auburn, Ala. His experience includes work with several firms across the country, including in his hometown of Salisbury, Md.; Aspen, Colo., and Atlanta. In 1999, Robbie joined Harrison Design. His work was honored with a 2007 Shutze Award from the Institute of Classical Architecture & Art and he received the Atlanta Urban Design Commission Award of Excellence in 2006.

Ryan Leehey


Leading the landscape architecture studio for the West Coast, Ryan is expert in all aspects of the design process, including innovative concepts and overall project management. He has a Bachelor of Landscape Architecture with a minor in sustainable environments from California Polytechnic State University San Luis Obispo. Before joining Harrison Design, he worked with firms in San Diego and Tustin, California, and interned with resort planners in Beijing. He is an associate member of the American Society of Landscape Architects and is active with its Cal Poly SLO Chapter.

Joseph Piscitelli


Joe’s career in landscape architecture has primarily focused on the New York and Atlanta metropolitan areas. Before receiving his Bachelor of Landscape Architecture from the University of Georgia in Athens, he earned an associate degree in Ornamental Horticulture Landscape Development at Farmingdale State University in Farmingdale, NY. Joe was a project architect for Site Solutions in Atlanta and then relocated to Long Island, New York, where he was employed with several firms specializing in landscape design. His designs are regularly recognized by the Long Island Nursery & Landscape Association’s annual showcase of awards. In 2017 Joe was the recipient of the American Planning Association Los Angeles Award of Excellence for Urban Design, and in 2018 he was on the shortlist for the Sandy Hook Permanent Memorial in Newtown, Connecticut.

Daniel Romanoff

Daniel Romanoff

Director, Interiors, Los Angeles

Daniel joined the Los Angeles office in 2019 after working for more than 10 years in interior design in New York City, including projects in the Hamptons, Palm Springs, Santa Monica and Palm Beach. He received his degree in interior design at Parsons Art and Design in New York. After graduating, he worked for a number of leading Manhattan-based interior design firms, including Christopher Maya, Inc. and Mark Epstein Designs, and was in management with Schumacher before establishing his own practice in NYC in 2015. Daniel’s training in fine art informs his approach to interiors.

Cerise Carleo

Director, AIA, Los Angeles

Cerise’s interest in architecture began at an early age while traveling with her family and drawing the new cities she encountered. As a distinguished cum laude graduate from the University of Southern California with a professional 5-year Bachelor of Architecture Degree, Cerise joined Harrison Design in 2015. She promptly completed her professional licensure in 2018, gaining the title of the youngest licensed architect at Harrison Design Los Angeles. She now serves as a Project Manager and Director of Architecture for the LA office, specializing in residential projects. Outside of work, she serves on the Education Committee for the ICAA and is a member of other groups, including AIA, Women at Work, and Soho House. For Cerise, architecture combines the freedom of design with the rigor and order of mathematics. She strives to find the beauty in everything.

Serena McClintick

Director, AIA, Santa Barbara

Serena’s interest in architecture began admiring the historic buildings at Balboa Park in her hometown of San Diego. Following the completion of her master’s degree at the University of Colorado, she joined Harrison Design in 2016 and achieved professional licensure. In her spare time, she instructs courses with the Institute for Classical Architecture & Art and volunteers with the AIA, Architectural Foundation of Santa Barbara, and other local initiatives. Her favorite part of the job is the endless study of timeless details, and environmental mindfulness found in traditional architecture.

Karissa Kizer

Director, AIA, Los Angeles

The most intriguing aspect of architecture for Karissa is the balance of endless creativity with a strict set of guidelines. During her studies at Syracuse University, Karissa took part in the study abroad program in Florence, Italy. Here, she began to draw on her childhood travels, experiencing the joy of classical architecture with newly trained eyes. After graduating Cum Laude, she worked in commercial architecture in Boston before settling in Los Angeles and joining Harrison Design in 2016. LEED accredited since 2009; she became a licensed architect in 2019. As Director of Architecture, Karissa takes pride in mentoring younger staff, exposing them to all aspects of the design process.

William Hull

Director, AIA, Santa Barbara

William earned his professional architectural degree from the University of Notre Dame, which included a year in their Rome studies program, where he was able to nurture and refine his love of hand drawing and rendering techniques. Before joining Harrison Design in 2018, he worked for many years in San Francisco, specializing in custom traditional design for projects all over the world. William now runs projects ranging in type from high-end residential to institutional to sacred architecture. As a licensed architect and a stickler for classical detailing and principles, William enjoys applying his knowledge to creating a more enduring, functional, and beautiful built environment.


Founded by William H. (Bill) Harrison, AIA, in Atlanta, Harrison Design began its story in the 1970s as a design-build company called Harrison Design Construction. After studying at Georgia Tech, Bill traveled through Europe where he experienced the architecture of the masters, visiting many of the palaces and villas designed by Andrea Palladio.

Upon his return, Bill began designing and building homes for a select few clients. In the mid-1990s, he was joined by Gregory Palmer, AIA, Bulent Baydar, AIA, Rick Hatch, Assoc. AIA, and John Albanese, AIA, resulting in the rapid growth of commissions throughout Georgia. Karen Ferguson, ASID, now the Principal of Interiors, entered the firm as a recent college graduate before establishing the Interiors Department in 2000.

In 2003, Bulent Baydar established the firm’s first West Coast office in Santa Barbara. The year after its opening, local architect Anthony (Tony) Spann, AIA, chose to merge his practice with Harrison Design. Barbara Lowenthal joined the office to oversee the interiors practice in 2005. Anthony Grumbine, AIA, now leads the Santa Barbara office, producing work ranging from new homes to extensive historical renovations within the area.

In the following years, the firm’s Atlanta clients drove demand to the eastern shore with commissions for luxurious vacation homes in the Golden Isles. As a result, the St. Simons office was opened in 2006 under the leadership of Chad Goehring, Assoc. AIA. Meanwhile, back in Atlanta, Harrison Design established its first Modern Studio, headed by architect Robert Tretsch, AIA, as well as a landscape architecture studio, now led by Katie Medina, PLA.

In 2007, Harrison Design California expanded to cater more conveniently to their Los Angeles clientele. With over 20 employees, Tony Spann and Jesse Harrison lead the Los Angeles office, specializing in high-end residential projects situated in Beverly Hills, the Hollywood Hills and Malibu. Ryan Leehey, PLA, and Daniel Romanoff respectively oversee the landscape architecture and interiors studios.

Greg Palmer and Bulent Baydar designed various residences throughout the Northern Virginia and metropolitan D.C. areas beginning in 2005, leading Bulent to establish a D.C. office in 2010; in 2012 Mark D. Hughes, AIA, joined the firm and now manages the office full-time. Nicolas Charbonneau, Assoc. AIA, joined the D.C. office in 2015 and, alongside Anthony Grumbine of the Santa Barbara office, leads Harrison Design’s sacred architecture studio dedicated to improving communities by creating highly functional, refined and enduring spaces.

Overseen by Long Island-native John Albanese, demand in one of the few growing markets during the recession of 2011 required a permanent New York office on the North Shore of Long Island. Relocated to Manhattan in 2019, the studio is now led by architect Christopher Stoddard, AIA, accompanied by Joseph Piscitelli, RLA, director of landscape architecture.

In response to a unique opportunity, Harrison Design established the Commercial Studio in 2016 to provide complete design services for large-scale multi-family communities. Under the leadership of Alan Williamson, AIA, Emily Schickner, AIA, and Betsy McBride, ASID, the studio has expanded its base to include hospitality and corporate office design as well as multi-family residential.

In 2017 Greg Palmer opened the firm’s office located in Naples to better serve Florida coastline clientele.

With the recent passing of Bill Harrison in 2021, an immensely experienced management team consisting of Greg Palmer, Rick Hatch, John Albanese, Tony Spann and Bulent Baydar was formed to build upon the past successes of Harrison Design and ensure the core ethos of the firm are upheld. 

William H. Harrison (1948-2021)