The Small Space Marketplace

List Your Space

Find Space

Home About Us Executive Subscriber Membership RENTV Conferences Newsletter Contact Us Advertise
April 11, 2026
 Search RENTV
   Go!
 The REview
 News
News Home Page
Southern California
Northern California
Pacific Northwest
Texas/Southwest
Retail
Multifamily
Financing
Prop. Management
Archives
Press Releases
 R. E. Marketplace
Service Providers
JobWorks
Property Spotlight
 RENTV  Conferences
Subscriber Login:
  
Email      
    Go!
Password      
Forgot Password?



HOME PAGE NEWS
Printer-friendly Version   Email an Associate
OpenAI Leases 450k sf Office Campus in the Bay Area

3/24/26

OpenAI has agreed to a lease for a five-building, 450k sf office campus in the heart of Silicon Valley. The property, located at 350-380 Ellis, south of Hwy 101 at Middlefield Rd in Mountain View, is owned by KKR Real Estate Finance Trust Inc and TMG Partners.

Photo: TMG Partners
Photo: TMG Partners
In 2024, TMG was selected to reposition the campus into a future-ready workplace designed to meet the needs of leading global technology companies. The work included modernizing the asset into an institutional-quality, highly connected workplace designed to support scale, flexibility and long-term tenant needs.

The comprehensive redesign integrates the five buildings into a seamless environment, upgrades core infrastructure and introduces collaboration- and wellness-focused amenities throughout, including a new front entry arrival experience, new indoor/outdoor café, rooftop decks and a revitalized secure 2.0-acre outdoor amenity zone featuring flexible, open-air workspace.

Other existing campus amenities include move-in ready finishes, open work environments, expansive meeting/conference rooms, executive briefing center, kitchen/break areas on each floor, and collaborative space. Additionally, there is a full-service gastropub restaurant and cafeteria, an onsite multi-story parking structure, tennis court, and sand volleyball court all surrounded by a vibrant landscape of redwood and oak trees.

Newmark’s Executive Managing Director Jon Mackey, Vice Chairman Mike Saign and Executive Vice Chairman Phil Mahoney represented the landlord in the lease of the property. JLL’s Mike Ino, Jon Moeller, Dan Johnson, Rich Duff, and Bridget Fahey represented OpenAI.




Return to the previous page


 


 


 


 
 



Home | About Us | Newsletter | Contact Us | Executive Subscriber Membership | Executive Subscriber Home | Advertise
Southern California | Northern California | Pacific Northwest | Southwest | Retail | Multifamily | Financing | Property Management
Archives | Press Releases | Service Providers | JobWorks | Property Listings

Copyright © 2026 by RENTV, All Rights Reserved
Website designed by Regency Web Services, Inc. and powered by Lightning Media