4301 Donald Douglas Drive presents a rare owner-user opportunity to acquire a premier executive aviation facility at Long Beach Airport (LGB). Located at the end of a private taxiway cul-de-sac, this 15,674-square-foot aircraft hangar, executive office, and research & development facility offers unmatched privacy, direct taxiway access, and a turnkey environment for corporate aviation, aircraft maintenance, or aerospace operations. Originally developed by Caribou Industries and operated by Cinema Aircraft Executive Transportation, the property represents one of the most extensively improved private aviation facilities at LGB, with over $8.0 million invested in construction and tenant improvements. Designed to accommodate the demands of sophisticated aviation users, the facility features a full-height Kevlar hangar door, 30-foot clear heights, climate-controlled office and hangar spaces, a 5,000-gallon Jet A fueling system, advanced security, and capacity for multiple Gulfstream aircraft, helicopters, and Citation-class jets. The executive office buildout rivals a luxury corporate headquarters, complete with a grand reception area, executive offices, conference room, gourmet kitchen, marble finishes, and premium amenities that create an exceptional environment for clients, executives, and flight operations alike. Offered at $5.8 million, significantly below its January 2025 fair market valuation of $7.5 million, the property provides an exceptional value for an owner-user seeking a strategic Southern California aviation headquarters. The leasehold interest combines a highly specialized aviation asset with immediate access to the Los Angeles and Orange County markets, making it ideal for corporate flight departments, aerospace companies, defense contractors, maintenance operators, or private aviation users seeking a world-class facility with long-term operational flexibility.