Duncan St, Santa Rosa, CA Property Records

Sonoma County property records for 19 addresses on Duncan St, Santa Rosa, CA · Last verified August 2026

Duncan St Highlights

Properties 19
Median Sale Price $430,000
Deeds and Mortgages on File 23
Median Price per Sqft $446
Owner Occupied 68%
Median Annual Tax Bill $3,068
Median Year Built 1979
Median Ownership Tenure 18 years

Properties on Duncan St

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

403 Duncan St

3 bd · 2 ba · 1,310 sqft · built 1987 · 0.134 acres

Last Sale Tax Bill Prior Sale Owner Records
$132,000Dec 1988 $4,3382025 2 Names on Record Assessor + 1 DocumentUpdated Apr 2026

407 Duncan St

2 bd · 2 ba · 994 sqft · built 1987 · 0.085 acres

Last Sale Tax Bill Prior Sale Owner Records
$6,500Aug 1996 $2,4042025 Amount on Record Apr 1996 2 Names on Record Owner Occupied AssessorUpdated May 2026

408 Duncan St

2 bd · 1 ba · 976 sqft · built 1964 · 0.357 acres

Last Sale Tax Bill Prior Sale Owner Records
$71,381Apr 2004 $3,0662025 Amount on Record Aug 1999 1 Name on Record Owner Occupied AssessorUpdated Apr 2026

411 Duncan St

4 bd · 2 ba · 1,521 sqft · built 1984 · 0.11 acres

Last Sale Tax Bill Prior Sale Owner Records
$100,000Jan 2003 $4,7312025 Amount on Record Jul 2000 2 Names on Record Owner Occupied Assessor + 1 DocumentUpdated Apr 2026

415 Duncan St

2 bd · 1 ba · 1,104 sqft · built 1984 · 0.11 acres

Last Sale Tax Bill Prior Sale Owner Records
$618,000Nov 2025 $2,8232025 Amount on Record Aug 2025 1 Name on Record Owner Occupied Assessor + 1 DocumentUpdated Apr 2026

417 Duncan St

2 bd · 1 ba · 744 sqft · built 1984 · 0.11 acres

Last Sale Tax Bill Prior Sale Owner Records
$69,000Aug 2002 $2,2932025 Amount on Record Apr 1999 1 Name on Record Assessor + 4 DocumentsUpdated Apr 2026

419 Duncan St

2 bd · 1 ba · 744 sqft · built 1984 · 0.11 acres

Last Sale Tax Bill Prior Sale Owner Records
$430,000Nov 2018 $5,4212025 Amount on Record Oct 2008 1 Name on Record Owner Occupied Assessor + 3 DocumentsUpdated May 2026

498 Duncan St

2 bd · 1 ba · 972 sqft · built 1959 · 0.346 acres

Last Sale Tax Bill Prior Sale Owner Records
$1,4502025 1 Name on Record AssessorUpdated May 2026

503 Duncan St

3 bd · 2 ba · 1,274 sqft · built 1984 · 0.136 acres

Last Sale Tax Bill Prior Sale Owner Records
$109,000Jul 1988 $2,3752025 1 Name on Record Owner Occupied AssessorUpdated May 2026

509 Duncan St

3 bd · 2 ba · 1,176 sqft · built 1979 · 0.11 acres

Last Sale Tax Bill Prior Sale Owner Records
$251,000Nov 2012 $3,4812025 Amount on Record Aug 2012 2 Names on Record Owner Occupied Assessor + 2 DocumentsUpdated May 2026

510 Duncan St

3 bd · 2 ba · 1,832 sqft · built 1979 · 0.113 acres

Last Sale Tax Bill Prior Sale Owner Records
$320,000Jun 2008 $4,7462025 1 Name on Record Owner Occupied AssessorUpdated Apr 2026

515 Duncan St

3 bd · 2 ba · 1,176 sqft · built 1979 · 0.11 acres

Last Sale Tax Bill Prior Sale Owner Records
$635,000Jul 2022 $7,5602025 Amount on Record Nov 2008 1 Name on Record Assessor + 2 DocumentsUpdated May 2026

516 Duncan St

3 bd · 2 ba · 1,176 sqft · built 1979 · 0.132 acres

Last Sale Tax Bill Prior Sale Owner Records
$525,000Jul 2021 $6,3062025 Amount on Record Jan 2013 1 Name on Record Owner Occupied Assessor + 3 DocumentsUpdated Apr 2026

520 Duncan St

3 bd · 2 ba · 1,176 sqft · built 1979 · 0.144 acres

Last Sale Tax Bill Prior Sale Owner Records
$210,000Mar 2011 $3,1112025 Amount on Record Oct 2010 1 Name on Record AssessorUpdated May 2026

525 Duncan St

3 bd · 2 ba · 1,176 sqft · built 1979 · 0.11 acres

Last Sale Tax Bill Prior Sale Owner Records
$298,181Jun 1998 $2,9432025 1 Name on Record Owner Occupied Assessor + 3 DocumentsUpdated Apr 2026

530 Duncan St

3 bd · 2 ba · 1,176 sqft · built 1979 · 0.166 acres

Last Sale Tax Bill Prior Sale Owner Records
$255,000Apr 2012 $3,6182025 Amount on Record Feb 2012 2 Names on Record Owner Occupied AssessorUpdated Aug 2026

535 Duncan St

3 bd · 2 ba · 1,176 sqft · built 1979 · 0.11 acres

Last Sale Tax Bill Prior Sale Owner Records
$1,7332025 1 Name on Record Owner Occupied Assessor + 1 DocumentUpdated Aug 2026

545 Duncan St

3 bd · 2 ba · 1,412 sqft · built 1979 · 0.193 acres

Last Sale Tax Bill Prior Sale Owner Records
$154,545Feb 1998 $3,0682025 1 Name on Record Owner Occupied AssessorUpdated Apr 2026

550 Duncan St

3 bd · 2 ba · 1,412 sqft · built 1979 · 0.287 acres

Last Sale Tax Bill Prior Sale Owner Records
$2,2192025 1 Name on Record Assessor + 2 DocumentsUpdated Apr 2026

Wildfire Risk on Duncan St

Source: USDA Forest Service Wildfire Risk to Communities · 2nd edition (2024), fuels as of 2020

Wildfire RiskNot rated
no burnable land in reach
Wildfire LikelihoodNegligible
ExposureNone
beyond ember reach

Property Records in Nearby Streets