What a final inspection proves
A final inspection is the inspection performed at the completion of a trade's work under a permit, and its record proves that a City inspector attended at that point and recorded a result. It is the close-out entry: the last thing the Department of Buildings writes down about that trade on that job.
What makes it the most informative single entry in a Chicago permit record is not what it says when it is there. It is what its absence says. A permit with rough inspections and no final was never closed out in the record, and the Inspector General's sampling of finished Chicago buildings found that state to be the normal one rather than the exception.
That gap is visible. A reader who knows the shape of a complete sequence can see an incomplete one at a glance, and most readers of a permit history do not know the shape, so they read the last passed entry as the end of a successful process rather than the point at which a process stopped.
Where the final sits in the sequence
Inspections under a Chicago permit are grouped by the stage of construction they examine, and the grouping is what gives the final its meaning. The Department's own breakdown runs:
- Underground — plumbing, and rebar and structural steel, inspected before concrete is poured over them. Once the pour happens, nothing in this group can be looked at again without demolition.
- Rough — carpentry on new construction, electrical, iron, plumbing and ventilation, inspected while framing is open and runs are exposed.
- Final — boilers, carpentry on new construction, electrical, iron, plumbing, refrigeration and ventilation, inspected when that trade's work is complete.
Each trade therefore has its own small sequence, and the finals are not one event. A permit can carry a completed final electrical inspection and no final plumbing inspection at all. Reading a single passed final as closing the permit is as wrong as reading a single passed rough as closing the trade.
Where a building requires a certificate of occupancy — the document the City issues when a building may lawfully be occupied — the finals sit inside a larger sequence that ends with a Fire Prevention Bureau inspection and the certificate itself. For the large majority of Chicago houses, which require no certificate, the finals are the end of the line, and nothing downstream of them creates a reason for them to happen.
The missing final is the system's signature pattern
The City's Office of Inspector General took a targeted sample of 80 new construction permits issued between 2017 and 2019 and went to look at what had been built. The office states the sample was not statistical and cannot be extrapolated, which is a real limit and does not soften what it found.
Forty-two of the buildings were fully constructed, including 35 single-family homes, several already sold or listed for sale. Their inspection records broke down as follows:
- 25 had rough inspections but no final inspections;
- 10 had some rough inspections and no finals;
- 4 had no inspections at all;
- 3 had some rough and some final inspections.
Thirty-five of the 42 had a final-inspection record that was either incomplete or entirely absent. Across those buildings, 398 inspections were required and the Department completed 198. Eleven of the 398 received passing marks.
These are finished buildings. People were living in several of them. The record of the Department's engagement with them stops partway through, and nothing in the record announces that it has stopped. The 2022 audit sets this out at pages 9 and 10.
Why the sequence stops
The mechanism is the one that governs every permit inspection in Chicago: the City does not initiate the visit. Section 14A-5-502.3 of the Municipal Code requires the permit holder to notify the building official when work done under a permit is ready for inspection. No request, no inspection, no record.
The final is the request most likely to go unmade, for an ordinary reason. A rough inspection has to happen because the work cannot proceed until the walls close, and a trade that skips it risks being told to open them again. By the time the final is due, the work is finished, the trades have left, and in a building that requires no certificate of occupancy nothing downstream depends on the inspector's visit. The incentive that produced the rough inspection has expired.
The Code does not treat this as acceptable. Section 14A-3-304.1 lists failure to schedule a required rough or final inspection as grounds for suspension of permit privileges, and Section 14A-4-401.5 requires the permit to remain posted until the work is completed and inspected in accordance with Chapter 14A-5. The administrative provisions describe a closed loop. The auditors found that the loop does not close, and that the Department's system cannot identify all uncompleted required inspections.
Reading the gap in a permit history
The pattern has a recognizable shape, and three rules make it readable.
Read the last entry, not the best one. A history whose entries run rough electrical passed, rough plumbing passed, rough carpentry passed, and then stop, on a building that is finished and occupied, is the audited pattern exactly. The passing marks are real. The sequence is incomplete.
Do not substitute permit status for inspection history. The auditors found 82.6 percent of permits open as of December 2020, that the Department does not consistently close permits once inspections are complete, and that different divisions use the closed status differently. A permit marked closed has not thereby been finally inspected, and an open permit is not evidence of unfinished work.
Count by trade. Because each trade carries its own rough and final, a permit covering four trades can have a final for one of them. The useful question is not whether the record contains a final inspection but whether it contains one for each trade the permit authorized.
None of this makes the gap a finding about the building. A missing final inspection is a missing record, and a competently built house can have one. What it removes is the reader's ability to tell the difference, which is the thing a final inspection record would otherwise supply.
What a completed final inspection still leaves open
Where a final inspection exists and passed, it is the strongest evidence available on the permit side of the Chicago record. Its limits are still worth naming.
It is bounded by the permit. The inspector examines the work the permit authorized. Work done at the same address outside that scope — whether exempt from permitting or simply unpermitted — is not within the inspection and is not covered by its result. The City's permit record describes what was authorized; no field anywhere records what was built.
It is bounded by the date. A passed final records a condition at completion. Alterations afterwards, including alterations that themselves required a permit, sit outside it.
It is not a certificate of occupancy. For buildings within the certificate requirement, the finals are a step toward it and the certificate is the stronger record. For buildings outside the requirement, a completed set of passed finals is as close to a close-out as the Chicago record offers, and it is uncommon enough that finding one is genuinely informative.
And a final inspection is not published as such. The City maintains no standalone Department of Buildings inspections dataset, so inspection history generally reaches the public only where an inspection produced a violation. The completeness of a sequence is often established by what is visible to the party holding the permit file rather than by anything on the open data portal.