20 S Clark St
Ongoing interior renovations across multiple floors of an existing office building, focusing on spec suite tenant build-outs. Construction activity involves wall reconfigurations with new partitions and doors, along with associated electrical, ventilation, and plumbing work throughout the targeted suites.
Largest single reported permit cost — not a summed project total. Individual permit values can overlap in scope.
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Activity
How much relevant permit activity is on this site.
Trade fit
How well this project matches each trade, from linked permits. Select a trade to filter parties & permits.
| Trade | Fit | Evidence |
|---|---|---|
| High | Major construction permits |
Permit ledger
All 4 permits on this record| Permit | Description | Status | Contractor | ||
|---|---|---|---|---|---|
101087153 Renovation | Interior alterations to a 24th-floor office suite, including new partitions, doors, and associated electrical, ventilation, and plumbing work. | OCT 13, 2026 | Active | $536,200 | Tw Chicago LLC |
101087150 Renovation | Interior alterations to a 22nd-floor office suite including new partitions, doors, electrical, ventilation, and plumbing work. | OCT 13, 2026 | Active | $214,229 | Tw Chicago LLC |
101087156 Renovation | Interior alterations on the 28th floor for a spec office suite, including new partitions, doors, electrical, ventilation, and plumbing work. | OCT 13, 2026 | Active | $886,336 | Tw Chicago LLC |
101087155 Renovation | Interior alterations to a 26th-floor office suite, including new partitions and doors with associated electrical, ventilation, and plumbing work. | OCT 13, 2026 | Active | $449,746 | Tw Chicago LLC |
Key parties
Sources: City of Chicago Dept. of Buildings permit feed · Cook County Assessor parcel records
Source Chicago Building Permits · Last calculated Oct 27, 2026
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