52
90% range 46.2–60.4
A3C Collaborative Architecture
Primary kind of workCommercial alterations
occasionalmedium confidence
Sub-scores
Inspections57
better than peers
Failed / re-inspection results on 23% of inspections vs 34% expected for similar jobs
Plan quality / Revisions54
typical
1.16 plan send-backs / revision events per permit vs 1.69 expected for similar jobs
Time to permit52
typical
Median 26 days to approval vs 21 days peer median (0.83× after adjusting for kind of work)
Completion36
worse than peers
31% of issued permits expired/voided without final vs 12% expected
More: compliance & reliability
Compliance48
typical
0.17 license/insurance/stop-work type holds per permit vs 0.15 expected
Reliability59
better than peers
4% of inspections cancelled vs 7% expected
Ann Arbor activity & plain stats
Permits in scored set
10
Last 3 years
3
Last 12 months
0
Years active
6
2014–2025
Median days to approval
26
peer median 21.0
Permits needing a revision
40%
Permits with a failed / re-inspection
50%
Inspections on record
55
Job mix
Commercial alterations 50% Commercial new 30% Roofing 10% Remodels 10%
Sample permit records
| Permit | Kind of work | Applied | Status | Days to approval | Notes |
|---|---|---|---|---|---|
| BLDGC25-0159 | Commercial new | 2025-04-14 | Final | 238 | inspection Above Ceiling/Grid [BLD]: Partial Pass inspection Concealed Space [BLD]: Partial Pass inspection Rough-In [BLD]: Partial Pass plan submittal v1 requires re-submit |
| BLDG14-1926 | Commercial alterations | 2014-09-23 | FINALED | 44 | inspection PARTIAL FINAL: PARTIAL PASS inspection **FINAL: NOT READY inspection PARTIAL FINAL: FAILED inspection ROUGH: FAILED inspection ROUGH: NOT READY inspection ROUGH: PARTIAL PASS |
| BLDG21-0638 | Commercial alterations | 2021-04-08 | EXPIRED | 26 | inspection ABOVE CEILING/GRID: NOT READY inspection ROUGH: NOT READY review BUILDING: RETURNED permit expired without final |
| BLDGC23-0357 | Roofing | 2023-07-31 | Final | 8 | — |
| BLDGC23-0278 | Commercial alterations | 2023-06-20 | Final | 15 | — |
| BLDG14-1151 | Remodels | 2014-06-30 | VOID | — | — |