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May 2026 Building Permits

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

Montgomery County, MD issued 727 building permits in May 2026, down 13% from the prior month. The most active zip code was 20815 with 52 permits. Building Residential Permit — Alter was the top permit type, making up 38% of all permits issued.

Permits issued
727
vs. prior month
-13%
831 last month
Most active zip
20815
52 permits
Top permit type
Building Residential Permit — Alter
38% of total

Permit activity by zip code

Top 10 zip codes by permit volume — May 2026

20815
52
20817
40
20854
40
20895
37
20904
35
20910
34
20902
33
20814
28
20816
26
20841
25

Permits by type

May 2026 · Montgomery County, MD

Building Residential Permit — Alter
278 (38%)
Building Residential Permit — Construct
177 (24%)
Commercial Building — Alter
94 (13%)
Building Residential Permit — Add
92 (13%)
Commercial Building — Construct
25 (3%)
Building Residential Permit — Restore And / Or Repair
19 (3%)
Commercial Building — Install
15 (2%)
Commercial Building — Restore And / Or Repair
13 (2%)
Commercial Building — Add
5 (1%)
Commercial Building — Commercial Change Of Use
5 (1%)
Commercial Building — Construct Sheeting/Shoring
2 (0%)
Building Residential Permit — Final Only Ap
1 (0%)
Commercial Building — Final Only Ap
1 (0%)

Other months — Montgomery County

September 2026August 2026July 2026June 2026
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