The Marino Office Leasing Index: Is your office building on AI’s shortlist?

A company looking for office space no longer has to start with a broker or a listing site. It can ask ChatGPT, Gemini or Perplexity for a shortlist of buildings and get one in seconds. The Marino Office Leasing Index looks at what those shortlists contain. For this first edition, Marino asked 142 tenant questions to nine AI assistants across eight major U.S. office markets: New York, Los Angeles, Miami, Chicago, Dallas-Fort Worth, Atlanta, Boston and Washington, DC. We then read all 1,234 answers. The Index names the 56 buildings AI recommends most and the websites it reads to choose them.

The findings should get the attention of every owner, landlord and leasing team. More than half of what AI reads comes from sites the building doesn’t control, such as brokerages, listing marketplaces, flex operators and city guides. Only 17.9% comes from the buildings’ own websites. New and repositioned buildings lead the lists, trade outlets like Bisnow and The Real Deal shape the story, and some of the most common tenant questions barely name a specific building.

The Marino Office Leasing Index shows how buildings land on AI’s shortlist, which pages and press it relies on, and what owners can do to make sure their building is the one AI recommends.