Permit Record

MEP Plumbing

6451 S Vernon Ave, Chicago, IL

ClassificationPlumbing
Reliable valueNot in source
ContractorOwner Acting As Own Plumber →
Permit record
Parties
Contractor
Owner Acting As Own Plumber
Applicant
Not in source
Owner
Ma Quanhong
Architect
Not in source
Engineer
Not in source
Contractor license
Not in source
Building & lot · PLUTO
Building class
Not in source
Zoning district
Not in source
Lot area
Not in source
Year built
Not in source
Units (total)
Not in source
Units (residential)
Not in source
Units (commercial)
Not in source
Floor area
Not in source
Parcel & enrichment
Parcel APN
2022209015
Climate zone (IECC)
5A
Roof area (est.)
Not derivable — no building-size signal for this permit
HVAC tonnage (est.)
Not derivable — no building-size signal for this permit
Building type
Not in source
Building subtype
Not in source
Geocode & dates
Coordinates
41.7769, -87.6142
Geocode confidence
90%
Geocode source
Not in source
Issued
Nov 12, 2020
Applied
Nov 12, 2020
Work class
Not in source
Description
Source description

DECONVERT 3 D.U. TO 2 D.U. - DECONVERT BASEMENT BACK TO STORAGE; CAP AND REMOVE KITCHEN AND SHOWER PLUMBING AND REMOVE TUB (TOILET AND SINK TO REMAIN)

Provenance
First seen by PermitCore
May 2, 2026 · 13:06 UTC
Last seen
May 15, 2026 · 08:47 UTC
Last changed
May 5, 2026 · 04:40 UTC

Open in Chicago source →

Data-quality checks1 of 12 flagged

1 of 12 data-quality checks flagged on this permit. Detail below.

Valuation is placeholder
valuation_usd_is_placeholder

valuation_usd matched a known placeholder (often 0 or 1) used by the source when the real valuation wasn't reported.

Checks not flagged

  • Geocode out of bounds
  • Geocode is sentinel
  • Issued date in the future
  • Issued date parse bug
  • Issued date is placeholder
  • Commercial units is placeholder
  • Residential units out of bounds
  • Residential units is placeholder
  • Total units out of bounds
  • Total units is placeholder
  • Valuation out of bounds
Project timeline at this parcel

2 permits at this parcel (parcel 2022209015) · Jan 24, 2018 – Nov 12, 2020

  1. Nov 12, 2020This permitMEP Plumbing$100Owner Acting As Own Plumber
  2. Jan 24, 2018100743775Alteration Residential · Finaled$6,000Gonzon Construction

Full permit history at this parcel · as of Jul 8, 2026.

Other permits by Owner Acting As Own Plumber

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Developer details
Permit #
100899604
Canonical ID
3:100899604
Source permit ID
100899604
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