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CoStar data shows office leasing activity rose 5% in 2025; Boston ranked as top growth market

ARLINGTON, Va., January 09, 2026--U.S. office leasing activity rose 5% year over year, with Boston reporting the highest growth in the metric, according to year-end data from CoStar, the leading global provider of online real estate marketplaces, information and analytics in the property markets.

articleCostar Group, Inc.January 9, 20263/company/costar-group-inc/news/costar-data-shows-office-leasing-activity-rose-5percent-in-2025-boston-ranked-as-top-growth-market
CoStar data shows office leasing activity rose 5% in 2025; Boston ranked as top growth market

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CoStar Groupcommercial real estateleading global providerreal estateleasing activity