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October 2026 Building Permits

Official permit data from Ann Arbor — updated Mon, Wed & Fri from the county permitting office.

Ann Arbor, MI issued 1,147 building permits in October 2026, down 20% from the prior month. The most active zip code was 48104 with 420 permits. Mechanical (Residential) - General HVAC was the top permit type, making up 17% of all permits issued.

Permits issued
1,147
vs. prior month
-20%
1,430 last month
Most active zip
48104
420 permits
Top permit type
Mechanical (Residential) - General HVAC
17% of total

Permit activity by zip code

Top 10 zip codes by permit volume — October 2026

48104
420
48103
370
48105
250
48108
107

Permits by type

October 2026 · Ann Arbor, MI

Mechanical (Residential) - General HVAC
195 (17%)
Electrical (Residential) - General
161 (14%)
Plumbing (Residential) - General
112 (10%)
Electrical (Residential) - Reconnect
67 (6%)
Building (Residential) - Windows & Doors
65 (6%)
Electrical (Commercial) - General
54 (5%)
Mechanical (Commercial) - General HVAC
51 (4%)
Building (Residential) - Alteration/Repair
49 (4%)
Plumbing (Residential) - Water/Sewer/Storm
38 (3%)
Certificate of Occupancy
34 (3%)
Building (Residential) - Radon
27 (2%)
Electrical (Commercial) - Reconnect
26 (2%)
Zoning Compliance - Fence (7 ft or less)
23 (2%)
Plumbing (Commercial) - General
22 (2%)
Electrical (Residential) - Solar Panel - Roof Mounted [Expedited]
19 (2%)
Building (Commercial) - Alteration/Repair
17 (1%)
Electrical (Residential) - Generator
16 (1%)
Building (Residential) - Deck / Porches
15 (1%)
Mechanical (Residential) - Generator
15 (1%)
Grading/Soil Erosion - Residential
14 (1%)
Building (Residential) - Foundation Repair/Alteration
12 (1%)
Mechanical (Commercial) - Fuel Gas Piping
10 (1%)
Mechanical (Residential) - Fireplace
8 (1%)
MESA - Fire Suppression
8 (1%)
Building (Residential) - Addition
7 (1%)
Building (Residential) - Basement Egress Window
7 (1%)
Electrical (Residential) - Homeowner Permit
6 (1%)
Plumbing (Commercial) - Water/Sewer/Storm
6 (1%)
Sign Permit - Wall
5 (0%)
Demolition - Residential Interior
4 (0%)
Electrical (Commercial) - Sign
4 (0%)
MESA - Fire Alarm Permit
4 (0%)
Building (Commercial) - Roof
3 (0%)
Building (Residential) - Roof (Flat Roof Only)
3 (0%)
Demolition - Residential Structural
3 (0%)
Electrical (Residential) - EV Charging Station
3 (0%)
Mechanical (Residential) - Fuel Gas Piping
3 (0%)
Zoning Compliance - Shed (200 sq ft or less)
3 (0%)
Building (Commercial) - Change of Occupancy
2 (0%)
Electrical (Commercial) - Teledata/Low Voltage
2 (0%)
Grading/Soil Erosion - Commercial
2 (0%)
Mechanical (Residential) - Boiler (1 or 2 unit structures only)
2 (0%)
Plumbing (Residential) - Homeowner Permit
2 (0%)
Building (Commercial) - Canopy/Awning
1 (0%)
Building (Commercial) - New Construction
1 (0%)
Building (Commercial) - White Box
1 (0%)
Building (Residential) - Detached Structures (over 200 sf or over 1 story)
1 (0%)
Building (Residential) - EV Charging Station
1 (0%)
Building (Residential) - Exterior Stairs
1 (0%)
Building (Residential) - New Construction
1 (0%)
Building (Residential) - Retaining Wall
1 (0%)
Certificate of Occupancy - Re-Occupation
1 (0%)
Electrical (Commercial) - Generator
1 (0%)
Electrical (Commercial) - Solar - Ground/Roof
1 (0%)
Mechanical (Commercial) - Generator
1 (0%)
Mechanical (Residential) - Hydronic/Piping
1 (0%)
Mechanical (Residential) - Wood Burning Appliances and Venting
1 (0%)
Sign Permit - Awning
1 (0%)
Sign Permit - Face Change
1 (0%)
Sign Permit - Monument
1 (0%)
Sign Permit - Projecting
1 (0%)

Other months — Ann Arbor

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