4th Ave, Sonoma, CA Property Records

Sonoma County property records for 9 addresses on 4th Ave, Sonoma, CA · Last verified August 2026

4th Ave Highlights

Properties 9
Median Sale Price $685,000
Deeds and Mortgages on File 17
Median Price per Sqft $504
Owner Occupied 56%
Median Annual Tax Bill $5,570
Median Year Built 1951
Median Ownership Tenure 4 years

Properties on 4th Ave

Owner names and prior sale amounts shown locked below are available instantly with a free trial.

18428 4th Ave

4 bd · 3.5 ba · 2,430 sqft · 0.149 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$1,215,000May 2026 $13,5302025 Amount on Record Apr 2021 1 Name on Record Owner Occupied Assessor + 4 DocumentsUpdated May 2026

18433 4th Ave

2 bd · 2 ba · 1,153 sqft · 0.08 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$685,000May 2025 $5,0482025 Amount on Record Jul 1999 1 Name on Record Owner Occupied Assessor + 2 DocumentsUpdated Apr 2026

18440 4th Ave

4 bd · 2.5 ba · 1,484 sqft · 0.142 acres · Garage · Pool

Last Sale Tax Bill Prior Sale Owner Records
$280,000Oct 2011 $5,6282025 Amount on Record Jun 2000 1 Name on Record Assessor + 2 DocumentsUpdated Apr 2026

18447 4th Ave

2 bd · 1 ba · 672 sqft · 0.158 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$870,000Sep 2022 $12,6792025 Amount on Record Mar 2020 2 Names on Record Assessor + 5 DocumentsUpdated Aug 2026

18460 4th Ave

2 bd · 1 ba · 1,071 sqft · 0.198 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$185,000Aug 1991 $5,5702025 2 Names on Record Owner Occupied Assessor + 1 DocumentUpdated Jul 2026

18465 4th Ave

1 bd · 1 ba · 1,186 sqft · 0.184 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$765,000Sep 2023 $12,0752025 Amount on Record Mar 1990 1 Name on Record Owner Occupied Assessor + 2 DocumentsUpdated Apr 2026

18466 4th Ave

1 bd · 1 ba · 1,140 sqft · 0.198 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$575,000Aug 2026 $5,3512025 2 Names on Record Assessor + 1 DocumentUpdated Aug 2026

18475 4th Ave

1 bd · 1 ba · 1,186 sqft · 0.184 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$100,000Jan 1996 $4,6392025 1 Name on Record AssessorUpdated Apr 2026

18488 4th Ave

3 bd · 1 ba · 1,541 sqft · 0.132 acres

Last Sale Tax Bill Prior Sale Owner Records
$155,000Aug 1992 $5,2462025 1 Name on Record Owner Occupied AssessorUpdated Apr 2026

Property Records in Nearby Streets