Filings at this exact Chicago street address.
Across the retained records at this address: 2 permit records, 0 planning filings and 0 application records. Source dates run from Aug 28, 2026 to Oct 28, 2026.
Matches use recorded street-address fields. They do not establish parcel boundaries, unit identity or one combined project. Each event retains its source's date meaning.
320 N SANGAMON ST
The 13-story building was designed for office and life-science use, then retrofitted for research tenants. The changes allow its lower two floors to support labs. [1]
Roles below relate to the development phases shown. Contractors for individual permits are listed with those permits.
320 North Sangamon lab conversion [1]
Checked Oct 16, 2026
Recent collected filings appear below. Load the source history to research earlier activity.
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Matches use the source's exact street fields or a literal planning address. They do not establish parcel, unit or project identity. Ranges and multiple-address planning filings are excluded from automatic matching. Each row shows its source-date meaning and separate check time. Work types follow source wording; missing or mixed descriptions remain unclear. Statuses are the latest facts checked here, not reconstructed statuses on the event date. Source actions and permit dates do not establish construction start or completion.
Work type unclear
Work described: Work type unclear
Latest checked status: ACTIVE
Exact source street fields · Checked Nov 2, 2026, 9:01 a.m. ET
REX ELECT. & TECHNOLOGIES LLC · Electrical Contractor
Work type unclear
Work described: Work type unclear
Latest checked status: ACTIVE
Exact source street fields · Checked Nov 2, 2026, 9:01 a.m. ET
IMG TECHNOLOGIES, INC. · Electrical Contractor
Planning rows link to the City Clerk, ADU or Plan Commission source; their checked scope is shown on Planning. Application rows link to the public status portal and retain its separate date meanings. Permit source: City of Chicago Building Permits ↗. Queries cover available source filings from January 1, 2006, with up to 5,000 newest records. Voided/revoked permits are excluded by the source. Historical lookups stay separate from daily alerts and do not expand citywide coverage.