AI Lease Abstraction Accuracy: Benchmarks and What to Expect
What accuracy can you realistically expect from AI lease abstraction tools? We break down field-level accuracy rates, where AI excels, where it struggles, and how to validate output.
New York City is the most expensive commercial real estate market in the United States, with Midtown Manhattan office rents consistently among the highest globally. The market spans over 500 million square feet of commercial space across five boroughs, dominated by Class A office, retail corridors, and industrial outer-borough submarkets. NYC leases are heavily negotiated with complex CAM structures, free-rent concessions, and substantial tenant improvement packages.
By Angel Campa, Founder · Updated March 2026
Commercial Space
500M+ sq ft
Avg Office Rent
$80–$120/sq ft
Vacancy Rate
20%
Avg Lease Term
5–15 years
Manhattan office leases typically use Full Service Gross with a base year expense stop, meaning tenants pay their pro-rata share of operating expense increases above the base year. Retail leases—especially Fifth Avenue and Times Square—are NNN with very high base rents and percentage rent overlays. Multi-tenant industrial leases in Brooklyn and Queens use Modified Gross or Gross structures. Free-rent concessions of 6–18 months are common in office deals.
New York Landlord–Tenant Guide
State-specific commercial lease laws, notice periods, and tenant rights for New York →
Full Service Gross (FSG) with a base year expense stop is standard for Manhattan Class A and B office. The tenant pays a flat gross rent in year one; from year two onward they pay their pro-rata share of operating expense increases above the base year amount.
Lextract extracts all 126 standard fields from NYC leases including base year expense stops, CAM caps, free-rent schedules, and complex renewal option structures—in minutes rather than hours.
What accuracy can you realistically expect from AI lease abstraction tools? We break down field-level accuracy rates, where AI excels, where it struggles, and how to validate output.
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