West Loop
Source: r/Chicago restaurant surcharge spreadsheet (crowdsourced), reported date unavailable (circa 2023; not re-verified). Surcharge: 20. Notes: For instance, at The Aviary the list says the service charge is not a tip replacement. They put a huge stamp on every receipt pointing out that they put the service charge on there to cover what is traditionally a "tip"
Source: diner reports on Tripadvisor (2024 and 2025 reviews) plus 2023 reporting on the Alinea Group bar: a mandatory 20% service charge has been in place since 2010 and is treated as revenue; diners report the charge does not go to the server and they tipped in addition. https://www.tripadvisor.co.nz/Restaurant_Review-g35805-d2467569-Reviews-The_Aviary-Chicago_Illinois.html Report date: 2026-09-11 (medium confidence; third-party reviews).
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