Sonoma County Addition Market Overview
Sonoma County's addition permit activity is currently slowing, with 14 permits filed in the last 30 days compared to 70 in the prior 30-day window. On average, 15.3 addition permits are filed per month here based on the last six months of data. The most active addition contractors in Sonoma County include CHRISTINE TYREUS, COAR DESIGN GROUP, BILL CILEO.
Recent Addition Permits in Sonoma County
| Date | Address | Description | Est. Value | Status |
|---|---|---|---|---|
| 2026-07-29 | 2474 Bloomfield Rd Sebastopol CA 95472 | 160 Sq Ft. Study Addition | Not listed on permit | Started |
| 2026-07-29 | 121 Randolph Ave Kenwood CA 95452 | REMOVE ATTACHED EXISTING 94 SF STORAGE AND EXISTIN... | Not listed on permit | Started |
| 2026-07-29 | 5834 Petaluma Hill Rd Santa Rosa CA 95404 | SFD;1400 SQS; Self-Certified Contractor: Remove th... | Not listed on permit | Issued |
| 2026-07-27 | 21 Chelsea Dr Santa Rosa CA 95403 | New Fire sprinkler system at 21 & 23 Chelesa Dr. M... | Not listed on permit | Plans Received |
| 2026-07-27 | 22109 Amanita Cir Jenner CA 95450 | CUT IN / ADD ON HEAT PUMP LOCATED IN YARD UNDER DE... | Not listed on permit | Issued |
| 2026-07-27 | 1205 Cooper Rd Sebastopol CA 95472 | Guest house, Repair Siding - New 58T111 siding app... | Not listed on permit | Pre-Issue/Payment Due |
| 2026-07-26 | 6300 Channel Dr Santa Rosa CA 95409 | SFD Addition (1,316 SF) Less than 50% of (E) Resid... | Not listed on permit | Awaiting Applicant Response |
| 2026-07-24 | 795 Salmon Creek Rd Bodega CA 94922 | 1. Remove existing roof system down to the sheetin | Not listed on permit | Issued |
| 2026-07-24 | 4618 Old Redwood Hwy Santa Rosa CA 95403 | NEW FIRST GENERATION RESTAURANT TENANT IMPROVEMENT | Not listed on permit | Started |
| 2026-07-08 | 5330 Winding View Trl Santa Rosa CA 95404 | Adding a retaining wall 3' using the pre approved | Not listed on permit | Started |
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Start Free →Frequently Asked Questions
How many Addition permits are filed in Sonoma County per month?
Sonoma County averages approximately 14 addition permits per month based on recent permit data collected by PermitGrab.
What types of Addition work require permits in Sonoma County?
In Sonoma County, permits are typically required for building addition permits including home extensions, room additions, and property expansions. Always check with Sonoma County's building department for specific requirements.
How can I find Addition leads in Sonoma County?
PermitGrab provides daily updates of all addition permits filed in Sonoma County, complete with addresses, project values, and lead scoring to help addition contractors find new jobs before the competition.
How quickly are Addition permits updated on PermitGrab?
Permits are collected daily from Sonoma County's open data portal and available on PermitGrab within 24 hours of filing.