55B
90% range 53.6–56.4
The Kolb Company, LLC
Primary kind of workAdditions / ADUs
occasionallow confidence
Sub-scores
Inspections63
better than peers
Failed / re-inspection results on 6% of inspections vs 17% expected for similar jobs
Plan quality / Revisions48
typical
2.51 plan send-backs / revision events per permit vs 2.02 expected for similar jobs
Time to permit54
typical
Median 23.5 days to approval vs 38.5 days peer median (0.64× after adjusting for kind of work)
Completion—
not enough data
More: compliance & reliability
Compliance61
better than peers
0.00 license/insurance/stop-work type holds per permit vs 0.20 expected
Reliability64
better than peers
2% of inspections cancelled vs 5% expected
Ann Arbor activity & plain stats
Permits in scored set
5
Last 3 years
4
Last 12 months
0
Years active
3
2014–2025
Median days to approval
23.5
peer median 38.5
Permits needing a revision
80%
Permits with a failed / re-inspection
20%
Inspections on record
30
Job mix
Additions / ADUs 80% New homes 20%
Sample permit records
| Permit | Kind of work | Applied | Status | Days to approval | Notes |
|---|---|---|---|---|---|
| BLDGR24-1689 | New homes | 2024-07-23 | Issued | 70 | plan submittal v1 requires re-submit plan submittal v2 requires re-submit plan submittal v3 requires re-submit 3 eReview file(s) sent back for resubmittal Permit placed on hold for more information |
| BLDGR24-1513 | Additions / ADUs | 2024-06-24 | Final | 25 | plan submittal v1 requires re-submit 1 eReview file(s) sent back for resubmittal Permit placed on hold for more information |
| BLDGR25-0334 | Additions / ADUs | 2025-03-08 | Issued | 10 | inspection Footing [BLD]: Partial Pass inspection Insulation [BLD]: Partial Pass inspection Rough-In [BLD]: Partial Pass 1 eReview file(s) sent back for resubmittal Permit placed on hold for more information |
| BLDGR25-0329 | Additions / ADUs | 2025-03-07 | Void - Wrong Workclass | — | plan submittal v1 requires re-submit |
| BLDG14-1478 | Additions / ADUs | 2014-08-04 | FINALED | 22 | — |
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