# 509 W 123RD ST, Chicago IL: HVAC / Mechanical permit 101082900 ($100,000)

**Subcontractor Bid Window & Material Demand Score:** 58/100

| Field | Value |
|---|---|
| Metro | Chicago, IL |
| Address | 509 W 123RD ST |
| Permit number | 101082900 |
| Permit type | PERMIT - RENOVATION/ALTERATION |
| Trade | HVAC / Mechanical |
| Valuation | $100,000 |
| Issued | 2026-10-20 |
| Applied | 2026-06-10 |
| Status | ACTIVE |
| General contractor | C & X ELECTRIC CO. |
| Description | SPR 2019 CBRC: INTERIOR ALTERATIONS TO AN EXISTING 2-STORY SINGLE-FAMILY RESIDENCE WITH BASEMENT INCLUDING RECONFIGURATION OF INTERIOR LAYOUTS, NEW MECHANICAL/PLUMBING/ELECTRICAL WORK, AND CONSTRUCTION OF 1 NEW REAR OPEN WOOD PORCH AS PER PLANS. EXISTING SINGLE-FAMILY USE TO REMAIN. INCLUDES 1 DWELLING UNIT WITH WORK THROUGHOUT THE RESIDENCE. (OCCUPANCY GROUP R-5; TYPE VB CONSTRUCTION) |

## Why this score
- $100,000 project: smaller scope.
- Issued 16 days ago.
- HVAC / Mechanical scope named on the permit: a direct fit for that trade.
- General contractor on record, so you know who to contact.

Source: City of Austin, City of Chicago, City of Los Angeles, Montgomery County MD and City of Cincinnati open-data building permits (https://data.cityofchicago.org/resource/ydr8-5enu.json?permit_=101082900). Last refreshed: 2026-11-04T14:42:28.906Z.
Permit data comes from official municipal open-data portals and may lag or contain errors. Informational only.