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October 2026 Building Permits

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

Montgomery County, MD issued 681 building permits in October 2026, down 11% from the prior month. The most active zip code was 20815 with 41 permits. Building Residential Permit — Alter was the top permit type, making up 38% of all permits issued.

Permits issued
681
vs. prior month
-11%
768 last month
Most active zip
20815
41 permits
Top permit type
Building Residential Permit — Alter
38% of total

Permit activity by zip code

Top 10 zip codes by permit volume — October 2026

20815
41
20854
38
20904
33
20906
33
20816
32
20817
31
20910
27
20895
23
20901
23
20853
22

Permits by type

October 2026 · Montgomery County, MD

Building Residential Permit — Alter
259 (38%)
Building Residential Permit — Construct
175 (26%)
Building Residential Permit — Add
76 (11%)
Commercial Building — Alter
64 (9%)
Commercial Building — Construct
32 (5%)
Building Residential Permit — Restore And / Or Repair
21 (3%)
Commercial Building — Install
16 (2%)
Commercial Building — Restore And / Or Repair
15 (2%)
Commercial Building — Add
8 (1%)
Commercial Building — Commercial Change Of Use
7 (1%)
Building Residential Permit — Final Only Ap
4 (1%)
Commercial Building — Build Foundation
2 (0%)
Building Residential Permit — Build Foundation
1 (0%)
Commercial Building — Construct Sheeting/Shoring
1 (0%)

Other months — Montgomery County

September 2026August 2026July 2026
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