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.
The raw number of non-specific parking spaces granted to the tenant.
By Angel Campa, Founder · Updated March 2026
Unreserved spaces provide the bulk of a tenant's parking capacity for employees and visitors. While less desirable than reserved spaces, they represent the majority of available parking. If the lease does not specify a minimum number, the landlord can reduce the tenant's allocation unilaterally. In multi-tenant buildings, competition for unreserved spaces creates friction that affects employee satisfaction and client visits.
In the "Parking" section, stated as a total number of spaces or calculated from the parking ratio. May distinguish between surface, garage, and off-site parking. Look for whether the spaces are "non-exclusive" (shared with other tenants) or "exclusive" (designated for the tenant).
Lextract uses a combination of AWS Textract OCR and Claude AI to identify and extract the unreserved spaces from your lease PDF. The AI searches for all pages of the document, then assigns a confidence score based on OCR quality and extraction certainty. Fields with lower confidence are flagged for human review.
Parking Ratio
The number of spaces allocated per 1,000 square feet of leased space.
Reserved Spaces
The number of explicitly designated, exclusive parking stalls for the tenant.
Monthly Parking Cost
The fee levied per space for utilizing the parking facilities.
Trailer Parking
The number of oversized spaces dedicated to industrial semi-truck trailers.
Unreserved spaces are available on a first-come, first-served basis and are shared among all building tenants and visitors. Reserved spaces are specifically designated for the tenant and may be marked with signage. Reserved spaces cost more but guarantee availability.
Usually yes, unless the lease restricts relocation. Landlords may relocate unreserved spaces during construction, repaving, or lot reconfiguration. Tenants should negotiate limits on how far spaces can be moved from the building entrance.
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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