Real ChatGPT answer · index seedivnneqKOfu0completeReal estate · home inspectionscomparison

How do I use open permit search methods in Chicago to find out if a basement apartment was legally finished?

ChatGPTgpt-63 queries11/1/2026
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Fan-out diagram

The searches the AI actually ran for this prompt.

SEED QUERY
How do I use open permit search methods in Chicago to find out if a basement apartment was legally finished?
3 real searches · 1 real-search pass
City of Chicago official building permits dataset search address permit records basement dwelling unitGoogle ↗
OBSERVED
Chicago Department of Buildings permit records certificate of occupancy additional dwelling unit basement officialGoogle ↗
OBSERVED
Chicago building code basement dwelling unit legal requirements certificate occupancy zoning officialGoogle ↗
OBSERVED

Badge and edge weight = share of passes that produced the query. Hover a query for its intent and routing format.

Query classes

Google's semantic query class for every sub-query: what kind of answer each search is after, simulated vs real.

Classifying 3 queries…

Searches and sources

ChatGPT3 real searches · gpt-6
City of Chicago official building permits dataset search address permit records basement dwelling unit Google ↗
Chicago Department of Buildings permit records certificate of occupancy additional dwelling unit basement official Google ↗
Chicago building code basement dwelling unit legal requirements certificate occupancy zoning official Google ↗

Queries

3 queries · click a column to sort
Query / typeSearchIntentQuery classRouting formatClusterFreq ↓Weight
City of Chicago official building permits dataset search address permit records basement dwelling unit
OBSERVED
Google ↗
AI Mode ↗
————1x
of 1
Chicago Department of Buildings permit records certificate of occupancy additional dwelling unit basement official
OBSERVED
Google ↗
AI Mode ↗
————1x
of 1
Chicago building code basement dwelling unit legal requirements certificate occupancy zoning official
OBSERVED
Google ↗
AI Mode ↗
————1x
of 1