67A
90% range 64.3–70.5
Cornerstone Design Inc
Primary kind of workCommercial alterations
activefeaturedhigh confidence
Sub-scores
Inspections62
better than peers
Failed / re-inspection results on 19% of inspections vs 32% expected for similar jobs
Plan quality / Revisions67
better than peers
0.66 plan send-backs / revision events per permit vs 1.40 expected for similar jobs
Time to permit49
typical
Median 21 days to approval vs 16.5 days peer median (1.05× after adjusting for kind of work)
Completion60
better than peers
8% of issued permits expired/voided without final vs 12% expected
More: compliance & reliability
Compliance87
better than peers
0.01 license/insurance/stop-work type holds per permit vs 0.12 expected
Reliability44
worse than peers
8% of inspections cancelled vs 6% expected
Ann Arbor activity & plain stats
Permits in scored set
192
Last 3 years
68
Last 12 months
12
Years active
17
2008–2026
Median days to approval
21.0
peer median 16.5
Permits needing a revision
39%
Permits with a failed / re-inspection
47%
Inspections on record
963
Job mix
Commercial alterations 53% Commercial new 22% Windows & doors 14% Roofing 4% Decks & porches 4% Remodels 2% New homes 1% Foundation / structural 1% Additions / ADUs 1%
Score by kind of work
Commercial alterations · 101 permits
64
Commercial new · 42 permits
69
Windows & doors · 27 permits
62
Roofing · 8 permits
57
Decks & porches · 7 permits
57
Sample permit records
| Permit | Kind of work | Applied | Status | Days to approval | Notes |
|---|---|---|---|---|---|
| BLDG15-0942 | Commercial alterations | 2015-05-18 | FINALED | 0 | inspection **FINAL: PARTIAL PASS inspection FOOTING: PARTIAL PASS inspection FOOTING: NOT READY inspection DRYWALL-SCREW: PARTIAL PASS |
| BLDG14-1399 | Commercial new | 2014-07-25 | FINALED | 287 | inspection **FINAL: PARTIAL PASS inspection DRYWALL-SCREW: PARTIAL PASS |
| BLDG19-0126 | Commercial new | 2019-01-29 | FINALED | 386 | inspection TEMP COFO: CONDITIONAL APPROVAL inspection **FINAL: CONDITIONAL APPROVAL inspection **FINAL: FAILED inspection PARTIAL FINAL: PARTIAL PASS inspection FIRE STOPPING: PARTIAL PASS |
| BLDG11-2307 | Commercial alterations | 2011-12-14 | FINALED | 6 | — |
| BLDG11-0320 | Commercial alterations | 2011-03-31 | FINALED | 5 | — |
| BLDG08-1447 | Decks & porches | 2008-11-04 | CANCELLED | 0 | — |
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