Mountain View Openai Lease Jolts Office Market
OpenAI Leases 450,000 SF in Mountain View OpenAI has jolted the Peninsula office market by signing a full-building lease for a 450,000-square-foot Class A campus at 350-380 Ellis Street in Mountain View. The real estate transaction hands OpenAI control of five buildings owned by KKR Real Estate Finance Trust and operated with TMG Partners. Newmark represented the landlords, while JLL advised OpenAI during negotiations. The lease dynamics are notable because the deal filled the entire campus roughly two years after repositioning began in 2024. The property includes move-in ready finishes, rooftop decks, an executive briefing center and kitchen and break areas on each floor. The property had previously served as NortonLifeLock’s headquarters before pandemic-era ownership changes and a deed-in-lieu transfer returned it to KREF. The agreement also highlights how AI demand is reshaping Peninsula real estate, even as local zoning and regulatory hurdles continue to influence large office com...