Rare Tustin–near Irvine opportunity to own a permitted office space or redevelop a versatile R3-zoned property offering multiple exit strategies and immediate income potential. Perfect for owner-users, investors, or developers seeking future redevelopment upside in a high-demand corridor. Currently operating as a professional office since 1980 (improved 2020), but zoned for high-density residential including ADU, multi-family, condos, or townhomes. Perfect for owner-users needing premium office space TODAY, investors seeking cash flow with future upside, or developers analyzing infill opportunities. Shovel-Ready Infrastructure: Plumbing and utilities already in place for two bathrooms + full kitchen, dramatically reducing conversion costs. Turnkey for immediate professional use or ready for residential/mixed-use transformation with zoning that allows multi-family, condo, townhome, ADU, or mixed-use development. This high-visibility location on Red Hill Ave near the I-5 Freeway is ideal for a wide range of top-performing professionals seeking a corporate home, including: Law, CPA, Medical, Dental, Therapy, Chiropractic, Physical Therapy, Mental Health, Architecture, Engineering, Real Estate, Mortgage, Insurance, Financial Planning, Marketing, Consulting, Creative, Photography, Design Studios, Tech Startups, Insurance Agencies, Tech Consultants, Financial Planners, Private Tutors, MedSpa, owner-user investors, any professional seeking a private stand-alone office and/or developers, and small multifamily builders seeking future redevelopment upside in a high-demand corridor. Multiple paths to profit: Owner-users build equity while deducting expenses | Investors lease now, redevelop later | Developers maximize R3 density for multi-family/condo projects | Live/work buyers convert to residence + ADU income. R3 zoning in high-demand Tustin corridor with infrastructure in place = reduced risk, faster returns, proven exit strategies!