← All reportsWalnut Creek, CA · Monthly Report

August 2026 Building Permits

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

Walnut Creek, CA issued 525 building permits in August 2026, up 34% from the prior month. The most active zip code was 94598 with 188 permits. Building New Construction, Additions, Alterations or Sign was the top permit type, making up 28% of all permits issued.

Permits issued
525
vs. prior month
+34%
391 last month
Most active zip
94598
188 permits
Top permit type
Building New Construction, Additions, Alterations or Sign
28% of total

Permit activity by zip code

Top 10 zip codes by permit volume — August 2026

94598
188
94595
150
94596
108
94597
76

Permits by type

August 2026 · Walnut Creek, CA

Building New Construction, Additions, Alterations or Sign
145 (28%)
Parking Fees
72 (14%)
Residential Mechanical: HVAC, Furnace, Air Conditioner Replacement or Ductwork ONLY (no relocation)
70 (13%)
Mechanical, Electrical, or Plumbing Only
58 (11%)
Building Revision to Issued Permit
42 (8%)
Reroof - Residential without Overlay
26 (5%)
Residential Electrical: Electrical Panel or Sub-Panel Replacement or Upgrade Panel ONLY (not exceeding 200amps & no relocation)
20 (4%)
Residential Plumbing: Water Heater Replacement ONLY (no relocation, no tankless)
19 (4%)
EV Charger/Battery Storage System - Residential
15 (3%)
Building Demolition Full
10 (2%)
Reroof - Multifamily Residential, Commercial or Residential with Overlay
9 (2%)
Solar System - Residential
8 (2%)
Pool or Spa - New, Remodel or Demolition
7 (1%)
Estimate - Building
6 (1%)
Estimate - Mechanical, Electrical, or Plumbing Only
6 (1%)
Solar System - Residential using Solar App+
5 (1%)
After Hours
3 (1%)
Estimate - Reroof
2 (0%)
Building Research
1 (0%)
Solar System - Commercial
1 (0%)

Other months — Walnut Creek

September 2026July 2026
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