STR Cost Segregation in Chicago, IL

Chicago STR cost segregation: keep shared-housing registration and building ownership distinct. Review local resources, study records, and a property-specific planning example.

Stratum Cost Segregation · Updated September 27, 2026

Keep shared-housing registration and building ownership distinct

Chicago’s shared-housing code addresses registration for each dwelling unit and zoning review. Use the registered unit identifier to align the operating file with the physical space in the study. Chicago shared-housing registration code.

Define the property study

For a two-flat or small apartment building, separate unit interiors from a common boiler, stairs, roof, and laundry room. Identify which units are rented nightly, leased longer term, or owner occupied. The building’s systems should be traced to the areas served rather than copied into every unit inventory.

Records that resolve the main questions

A scoping example

A landlord furnishes an upper unit for visitors while keeping a lower unit on an annual lease. The shared boiler replacement appears once in the building file; the new beds appear in the upper-unit file. This prevents a repeated whole-building cost in each rental schedule.

Illustrative documentation scenario; not a completed client study or a savings estimate.

Does each registration require a separate valuation of the entire building?

No. Ask the provider to define the reporting scope and reconcile shared costs. Multiple operating units should not cause the same acquired component to be counted repeatedly.

Prepare for a Stratum study

Stratum provides nationwide property-study services, with discovery calls through AE Tax Advisors. Confirm the engagement scope, fee, evidence requirements, and CPA handoff. A service-area page does not represent a local office. Local operating approval and federal depreciation are separate questions.

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Local source checked September 27, 2026. Confirm current address-specific requirements with the relevant authority. This page provides planning information, not a determination of rental eligibility or tax treatment.

Discuss your property with AE Tax Advisors

Bring your acquisition records, rental-use history, and current depreciation schedule to discuss whether a Stratum study fits.

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