536 S. Clark / 101 W. Ida B. Wells Federal Building
536 S Clark St, Chicago, IL 60605
30% provisional source coverage
USE BOUNDARYNot verified · Not dispatch ready
GSA building IL0054ZZ is the 536 South Clark / 101 West Ida B. Wells Federal Building, a 10-story former Rand McNally printing house acquired by the federal government in 1952. GSA's building page lists a DHS occupancy relationship and public screening guidance, but the page was last updated in July 2024 and does not authorize vendor, freight or contractor access.
Canonical identity
This Public Seed resolves the dual-address federal identity, GSA management, historic-building relationships and stale-sensitive visitor guidance. It keeps neighboring federal buildings separate and leaves parcel, tenant-component, dock, COI, life-safety, telecom and dispatch procedures unknown.
Area claims stay separate
Gross, rentable, and office area are not interchangeable. Factum stores each measurement with its source meaning instead of choosing a convenient single number.
What public guidance supports
These are sourced research answers, not permission to enter, reserve, submit, or dispatch. Current affected-party authorization remains required.
Dual-address identity
GSA uses both 536 South Clark Street and 101 West Ida B. Wells Drive for one federal building, number IL0054ZZ.
GSA pages updated July 2024 and January 2025; reviewed August 15, 2026Public visitor guidance
The July 2024 GSA page lists weekday public hours, screening and valid identification, with a designated Passport Agency entrance. Reconfirm before visiting.
Last updated July 16, 2024; stale-sensitiveVendor and dispatch boundary
Public visitor guidance does not authorize deliveries, freight, contractors, tenant work, emergency response or dispatch.
Public-source review completed August 15, 2026Questions this record answers
Each concise answer includes the same caveats shown elsewhere on the page.
01What is the current name of the Clark Federal Building?+
GSA identifies it as the 536 S. Clark / 101 W. Ida B. Wells Federal Building and assigns building number IL0054ZZ.
02What public access guidance is available?+
GSA's July 2024 page lists 7 a.m.–5 p.m. weekday public hours, screening and valid identification. Because the page is stale-sensitive, confirm before relying on it.
03How can I improve this record?+
Submit a current public GSA notice, tenant/vendor guide, dock/freight rule, move rule or COI package and specify public-display, verification-only or private-retention permission.
Explicit unknowns
Anything operationally material that is stale, incomplete, or unconfirmed remains visible here.
- 01Official parcel/PIN, legal title entity and parcel completeness.
- 02Current GSA property-manager contact route and federal tenant/component roster.
- 03Current visitor guidance confirmation beyond the July 2024 GSA page.
- 04Dock, delivery, freight-elevator, move and work-window procedures.
- 05COI, vendor, contractor and labor requirements.
- 06Life-safety, emergency, telecom/riser, reservation, fee, parking, permit and disposal procedures.
Evidence register
Source links are direct. Authority and supported claim groups are stated so readers can inspect the underlying record.
- 01536 S. Clark / 101 W. Ida B. Wells Federal Building ↗
U.S. General Services Administration · Supports: Dual address/name, GSA role, DHS relationship, property-manager role and July 2024 public visitor guidance
- 02Federal Building, Chicago — historic record ↗
U.S. General Services Administration · Supports: IL0054ZZ, construction history, architect, Rand McNally origin, federal acquisition and historic-district relationship
- 03Chicago covered-building row 101560 ↗
City of Chicago · Supports: Benchmark identity, address, cohort and geography