HK Design & Development
is an architectural and construction firm specializing in design & build of supportive housing development for persons living with disabilities or chronic illness, affordable housing, and homeless housing.
about hkdd
We believe smooth development of these special homes begin with hands on experience, understanding needs from all parties, clear communication skill between user groups, governing agencies, investor, and community group.
Architectural knowledge that can execute these needs into construction documents and Construction skills that create beautiful homes for people in needs on time and on budget.
HKDD is proudly partner with leading non-profit affordable, supportive housing development company throughout state of California such as Brilliant Corners, Abode Communities, Los Angeles Housing Partnership. Also with governing agencies such as Department of Development Services, Department of Development Services Regional Centers.




who we are
Sam (Sangyoul) Han, Principal, received a Bachelor of Arts from renowned Hong-Ik University in Seoul, Korea and earned a Master in Architecture from University of Pennsylvania. Before launching his own office, he has worked several years in the architectural firms to develop his design skills follow by construction firms to expand his hands on knowledge and skills in construction. Sam is a licensed Architect and a Contractor in the State of California. He is also LEED AP and Certified Green Building Professional who has been incorporating the latest energy efficient technologies and green building materials to achieve cost –efficient and energy saving sustainable architecture.
Jennifer Koo, Senior Project Manager, received a Bachelor of Architecture from University of Southern California and has been working last 25 years at award winning architectural firms before she joined HK Design & Development, Inc.
Experienced in all phases of design and planning, she brings particular skills and focus to efficient and thoroughly functional plan layout and space utilization. With her particular attention to every detail, she has ability to produce visually exciting and aesthetically pleasing designs.
