Manhattan’s legal sector posted a record first-half office leasing performance in 2026, according to data reported by Colliers. Law firms collectively leased 3.57 million square feet of office space in the first six months of the year, the highest first-half volume ever recorded for this segment of the market.
Colliers noted that the legal sector’s momentum in early 2026 represents a sharp acceleration from prior years. The 3.57 million square feet of leasing volume in the first half was 66.0% higher than the 2.15 million square feet recorded in the first half of 2025, which had previously been the sector’s midyear high. The latest total also more than doubled the ten-year first-half average of 1.52 million square feet for Manhattan law firm leasing.
The strength in legal sector activity stood out even against a generally improving office market backdrop. Colliers reported that year-over-year growth in legal sector leasing significantly outpaced the 10.5% increase in overall Manhattan office leasing during the same period. This divergence underscores the legal industry’s role as one of the more active and resilient segments in Manhattan’s office demand profile so far in 2026.
Colliers added that if law firms maintain a similar level of leasing activity in the second half of 2026, annual volume for the year would set a new high-water mark. At that pace, total law firm leasing would surpass the current annual record of 4.04 million square feet set in 2023, as well as the 3.74 million square feet recorded in 2025. While the second half has yet to play out, the first-half performance alone has already reset expectations for the sector.
One transaction in particular helped define the first half of the year. The largest law firm office lease signed in Manhattan during the period was Simpson Thacher & Bartlett’s 916,000-square-foot commitment at 570 Fifth Ave., a new office property being developed by Extell Development. The scale of that single lease underscores the willingness of major law firms to secure substantial, modern office footprints in central Manhattan locations.
Taken together, these figures indicate that law firms remain a critical driver of demand in Manhattan’s office market. The combination of record first-half volume, outperformance relative to the broader market, and headline-making commitments from major firms has positioned the legal sector as a focal point for office leasing dynamics in 2026.
