About
InnoArc is a licensed architecture firm and licensed general contractor in Fullerton, California. Since 2017 we’ve designed and built restaurants, shops, medical offices, schools, homes and commercial buildings — one team, one contract, from the first drawing to the day you open.
Founded 2017CA Architect & CA General Contractor in-houseOffices in California, Nevada, Georgia & TexasLicensed in Louisiana
Founder & CEO
Joon Sim
AIA · KIA
Joon obtained a master’s degree in architecture from the University of Michigan, Ann Arbor in 1996. With over 30 years of architecture experience across California, Nevada, Georgia and New York, he founded InnoArc in 2017.
He has led significant projects worldwide, collaborating with renowned designers and firms such as Frank Gehry, Renzo Piano and Studio Daniel Libeskind. His experience covers retail, commercial, residential, hospitality and educational projects across the United States and in Korea, China, the Middle East, Europe and Southeast Asia.
California ArchitectC36557
California ContractorB1045687
Nevada Architect8003
New York Architect029520
Georgia ArchitectRA12661
Louisiana Architect10558
National Council of Architects66774
American Institute of Architects30289525
Team
Architecture, construction and development leadershipKiyoung KimManaging Partner · Georgia Office
- Professional experience
- 30+ years of diverse experience in architectural design, project management, construction administration, design-build, and real estate development.
- Project expertise
- Privately and publicly funded projects, including housing, warehouses, mid-rise and high-rise office buildings, high-rise multi-family condo/mixed-use complexes, and large-scale city development projects nationwide and globally.
- Codes & regulations
- CBC, IBC, CA Title 24 accessibility, ADA, Fair Housing Acts, UFAS.
Moonki ParkManaging Partner · Construction
- Professional experience
- 30+ years of professional experience in residential and commercial construction.
- Project expertise
- Residential and commercial projects, including multi-family and commercial/residential mixed-use developments.
- Project management
- Estimating, onsite management, and scheduling.
Mia HanVice President · Nevada Office
- Professional experience
- 20+ years in architectural design, construction administration, design-build, and real estate development.
- Project expertise
- Housing, mid-rise and high-rise office buildings, high-rise multi-family condo/mixed-use complexes, large city development projects in China and India, a women's college medical school in Riyadh, Saudi Arabia, and hospital and medical office projects for Kaiser Permanente and Stanford University Lucile Packard Children's Hospital.
- Certified projects
- LEED Accredited Professional with several certified projects in sustainable design and construction.
Steven JiSenior Project Manager · LEED AP
- Professional experience
- 10+ years in architectural design and construction management.
- Project expertise
- Single-family and multi-family residential, retail, restaurant, office, hospitality, and master planning.
- Project management
- The full project lifecycle — programming, planning, and financial analysis through entitlement, design/engineering, construction, and post-construction, including property management and sales.
Daniel KimPartner · AIA
- Professional experience
- 25+ years of diverse experience in architectural design, project management, construction administration, design-build, and real estate development.
- Project expertise
- Privately and publicly funded projects, including housing, warehouses, mid-rise and high-rise office buildings, high-rise multi-family condo/mixed-use complexes, and large-scale city development projects nationwide and globally.
- Codes & regulations
- CBC, IBC, CA Title 24 accessibility, ADA, Fair Housing Acts, UFAS.
History
2017 – 20262026
- Partnership with DYO Design Office, New York.
- Partnership with HaeAhn Architecture, Seoul, Korea.
- Licensed and registered in the State of Louisiana.
2025
- InnoConstruction LLC established as an affiliated construction company.
- Hoimyung Texas Plant grand opening, December 8, 2025.
- 7911 Orangethorpe Ave entitled for a 21-unit apartment project.
- Partnership with Stallant Health Medical and Dental Care.
- Partnership with Buena Park Grand Hotel and Suites.
2024
- Headquarters moved to Fullerton Tower.
- 102 Marion completed with full tenant occupancy.
- A new Highland office for Stallant Health Medical and Dental Care.
2023
- Texas office opened in Austin to manage industrial projects — including HM Plant — around Houston, Dallas and Austin.
- Georgia office resumed operation, with the Georgia architectural license reinstated to practice in Atlanta.
2022
- Innoproperties, LLC established in partnership with Hoimyung USA to invest in U.S. real estate development, with InnoArc as its General Manager.
- InnoArc named architect of record for The Source at Beach in Buena Park.
2021
- Nevada office opened in Las Vegas, after InnoArc began practicing in Nevada in 2018.
- 9033 Wilshire in Beverly Hills sold to LaSalle for $74 million. The building, designed by the founder’s former firm, Sim & Associate, Inc., received a design excellence award in 2009.
2020
- Innotrust, LLC established to partner with private investors on U.S. real estate development.
- Eplex Buena Park completed and opened to the public: 16,762 sf indoors plus a 2,425 sf outdoor play area.
2019
- Office relocated to 6988 Beach Blvd to serve a growing number of projects.
2018
- JS Architects launched, expanding the company’s architectural services.
- Completed numerous retail and commercial projects for new clients.
2017
- InnoArc established in Buena Park for architectural practice and construction services.
- First office opened at The Source at Beach, in partnership with M+D Properties.