Commercial space delivered in an unfinished state with only the basic structural components — exterior walls, roof, concrete floor, and sometimes rough mechanical and electrical connections — requiring the tenant to complete all interior improvements.
Shell space (also called "cold dark shell" or "vanilla shell" depending on the level of completion) is a starting point for tenant build-outs. Delivery conditions vary: a cold dark shell may have bare concrete, no HVAC, and no electrical distribution; a "warm vanilla shell" may include a dropped ceiling grid, basic HVAC distribution, and demising walls. The tenant funds the full interior build-out, sometimes with assistance from a tenant improvement allowance. Shell delivery is most common in new construction and larger retail anchor leases. Lease abstracts must document the delivery condition precisely to assess the capital investment required from the tenant and the associated timeline before occupancy.
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.
Compare the top AI lease abstraction tools for commercial real estate in 2026. We review Lextract, Prophia, Kolena, Leasecake, MRI Software, and more — with pricing, accuracy, and use-case guidance.
Free AI lease abstraction tools are fast and easy — but they have real limitations. Here is what free tools deliver, what they miss, and when you need structured output instead.
Upload a commercial lease PDF and get 125+ structured fields — including all the terms defined in this glossary — extracted in under 3 minutes. $20 per lease.
Upload Your Lease