59
90% range 57.0–61.6
Hamilton Building & Design
Primary kind of workRemodels
activefeaturedhigh confidence
Sub-scores
Inspections50
typical
Failed / re-inspection results on 19% of inspections vs 19% expected for similar jobs
Plan quality / Revisions58
better than peers
0.37 plan send-backs / revision events per permit vs 0.53 expected for similar jobs
Time to permit50
typical
Median 12 days to approval vs 10 days peer median (1.00× after adjusting for kind of work)
Completion55
typical
19% of issued permits expired/voided without final vs 23% expected
More: compliance & reliability
Compliance91
better than peers
0.00 license/insurance/stop-work type holds per permit vs 0.02 expected
Reliability54
typical
6% of inspections cancelled vs 6% expected
Ann Arbor activity & plain stats
Permits in scored set
129
Last 3 years
17
Last 12 months
6
Years active
19
2008–2026
Median days to approval
12.0
peer median 10.0
Permits needing a revision
20%
Permits with a failed / re-inspection
46%
Inspections on record
409
Job mix
Remodels 68% Additions / ADUs 12% Decks & porches 8% Garages & accessory 6% Windows & doors 3% Foundation / structural 2% Siding / envelope 1%
Score by kind of work
Remodels · 88 permits
59
Additions / ADUs · 16 permits
58
Decks & porches · 10 permits
52
Garages & accessory · 8 permits
50
Sample permit records
| Permit | Kind of work | Applied | Status | Days to approval | Notes |
|---|---|---|---|---|---|
| BLDG17-1098 | Additions / ADUs | 2017-05-24 | FINALED | 12 | inspection POSTHOLE: FAILED inspection ROUGH: FAILED inspection INSULATION: PARTIAL PASS inspection ROUGH: PARTIAL PASS |
| BLDG09-2000 | Additions / ADUs | 2009-10-07 | FINALED | 23 | inspection **FINAL: PARTIAL PASS inspection **FINAL: FAILED inspection POSTHOLE: FAILED inspection INSULATION: PARTIAL PASS inspection ROUGH: FAILED inspection POSTHOLE: NOT READY |
| BLDGR25-2063 | Garages & accessory | 2025-12-08 | Final | 35 | inspection Rough-In [BLD]: Re-inspection required plan submittal v1 requires re-submit 3 eReview file(s) sent back for resubmittal Permit placed on hold for more information |
| BLDG11-2276 | Remodels | 2011-12-08 | FINALED | 10 | — |
| BLDG11-2020 | Decks & porches | 2011-11-01 | FINALED | 1 | — |
| BLDG11-0661 | Garages & accessory | 2011-05-19 | FINALED | 19 | — |