Ann Arbor Permit Report Cards

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55B
90% range 53.6–56.4

The Kolb Company, LLC

Architect · Pinckney, MI · #34 of 119 listed overall
Primary kind of workAdditions / ADUs80% of all permits · #3 of 7 additions / adus specialists
occasionallow confidence

Overall score: 50 = peer average for the same role and the same kind of work (e.g. window jobs are compared with window jobs, remodels with remodels). Based on 5 permits (4 STREAM + 1 A2Trak).

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

Kinds of work across all 5 permits. Each permit is scored against peers doing the same kind of work.

Additions / ADUs 80% (4)New homes 20% (1)

Sample permit records

A sample of the public records behind this card. Links open the city's permit portals.

PermitKind of workAppliedStatusDays to approvalNotes
BLDGR24-1689New homes2024-07-23Issued70plan 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
BLDGR24-1513Additions / ADUs2024-06-24Final25plan submittal v1 requires re-submit
1 eReview file(s) sent back for resubmittal
Permit placed on hold for more information
BLDGR25-0334Additions / ADUs2025-03-08Issued10inspection 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
BLDGR25-0329Additions / ADUs2025-03-07Void - Wrong Workclass—plan submittal v1 requires re-submit
BLDG14-1478Additions / ADUs2014-08-04FINALED22—

Related Additions / ADUs firms

55B
PLY+
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activelow confidence
54B
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Additions / ADUs · 71% of all permits
Ann Arbor, MI · 7 permits · 1 in last 3 yrs · active 2015–2024
occasionallow confidence
54B
Studio Z Architecture
Additions / ADUs · 67% of all permits
Canton, MI · 9 permits · 2 in last 3 yrs · active 2014–2024
occasionalmedium confidence
54B
J.T.Zeigler, LLC
Additions / ADUs · 60% of all permits
Ann Arbor, MI · 10 permits · 5 in last 3 yrs · active 2021–2026
activefeaturedmedium confidence
56B
Kratz Designs, LLC
Additions / ADUs · 58% of all permits
Ann Arbor, MI · 12 permits · 6 in last 3 yrs · active 2017–2026
activefeaturedmedium confidence

See all ratings · How scores work

Scores update as new permit activity lands. Not a recommendation to hire. Report an error.