Walnut Ave, Setauket, NY Property Records

Suffolk County and Brookhaven Town property records for 20 addresses on Walnut Ave, Setauket, NY · Last verified August 2026

Walnut Ave Highlights

Properties 20
Median Sale Price $500,000
Deeds and Mortgages on File 10
Median Price per Sqft $233
Owner Occupied 70%
Median Annual Tax Bill $9,788
Median Year Built 1940
Median Ownership Tenure 23 years

Properties on Walnut Ave

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

2 Walnut Ave

3 bd · 3 ba · 2,026 sqft · 0.269 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$300,000May 2003 $12,5292024 2 Names on Record Owner Occupied AssessorUpdated Aug 2026

4 Walnut Ave

2 bd · 1 ba · 1,276 sqft · 0.289 acres

Last Sale Tax Bill Prior Sale Owner Records
$185,000Aug 1999 $9,7882024 1 Name on Record Owner Occupied AssessorUpdated Aug 2026

8 Walnut Ave

2 bd · 1 ba · 1,168 sqft · 0.139 acres

Last Sale Tax Bill Prior Sale Owner Records
$8,1792024 2 Names on Record Owner Occupied Assessor + 1 DocumentUpdated Aug 2026

9 Walnut Ave

4 bd · 2 ba · 1,799 sqft · 0.26 acres

Last Sale Tax Bill Prior Sale Owner Records
$556,250Nov 2017 $14,5202024 2 Names on Record Owner Occupied Assessor + 2 DocumentsUpdated Aug 2026

11 Walnut Ave

3 bd · 1 ba · 1,064 sqft · 0.33 acres

Last Sale Tax Bill Prior Sale Owner Records
$2,6972024 1 Name on Record Owner Occupied AssessorUpdated Aug 2026

12 Walnut Ave

3 bd · 2 ba · 1,602 sqft · 0.139 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$15,6612024 1 Name on Record Owner Occupied AssessorUpdated Aug 2026

13 Walnut Ave

3 bd · 1 ba · 992 sqft · 0.23 acres

Last Sale Tax Bill Prior Sale Owner Records
$6,6562024 1 Name on Record AssessorUpdated Aug 2026

14 Walnut Ave

3 bd · 2 ba · 900 sqft · 0.13 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$252,500Feb 2002 $8,2992024 Amount on Record Jul 1998 1 Name on Record Owner Occupied Assessor + 1 DocumentUpdated Aug 2026

15 Walnut Ave

3 bd · 2 ba · 1,620 sqft · 0.2 acres

Last Sale Tax Bill Prior Sale Owner Records
$5,8732024 2 Names on Record AssessorUpdated Aug 2026

16 Walnut Ave

3 bd · 2 ba · 1,436 sqft · 0.139 acres

Last Sale Tax Bill Prior Sale Owner Records
$335,000Dec 2016 $10,4552024 Amount on Record Apr 2005 1 Name on Record Owner Occupied Assessor + 1 DocumentUpdated Aug 2026

17 Walnut Ave

0.169 acres

Last Sale Tax Bill Prior Sale Owner Records
$7832024 2 Names on Record AssessorUpdated Aug 2026

18 Walnut Ave

4 bd · 1 ba · 2,088 sqft · 0.139 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$500,000Jul 2006 $12,6312024 2 Names on Record Owner Occupied Assessor + 1 DocumentUpdated Aug 2026

19 Walnut Ave

4 bd · 2 ba · 1,520 sqft · 0.15 acres

Last Sale Tax Bill Prior Sale Owner Records
$270,000Mar 2005 $8,9712024 Amount on Record Jun 1999 1 Name on Record Owner Occupied AssessorUpdated Aug 2026

20 Walnut Ave

3 bd · 1 ba · 830 sqft · 0.21 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$5,0932024 2 Names on Record Owner Occupied AssessorUpdated Aug 2026

21 Walnut Ave

3 bd · 2 ba · 796 sqft · 0.219 acres

Last Sale Tax Bill Prior Sale Owner Records
$585,000Nov 2021 $8,7312024 2 Names on Record Owner Occupied Assessor + 1 DocumentUpdated Aug 2026

22 Walnut Ave

3 bd · 2 ba · 1,082 sqft · 0.31 acres

Last Sale Tax Bill Prior Sale Owner Records
$6,1702024 1 Name on Record Owner Occupied AssessorUpdated Aug 2026

23 Walnut Ave

3 bd · 2 ba · 1,359 sqft · 0.15 acres

Last Sale Tax Bill Prior Sale Owner Records
$11,5502024 2 Names on Record AssessorUpdated Aug 2026

24 Walnut Ave

2 bd · 1 ba · 1,038 sqft · 0.28 acres

Last Sale Tax Bill Prior Sale Owner Records
$65,000Sep 2000 $16,0522024 2 Names on Record Assessor + 1 DocumentUpdated Aug 2026

25 Walnut Ave

4 bd · 2 ba · 2,031 sqft · 0.61 acres

Last Sale Tax Bill Prior Sale Owner Records
$285,000Jul 2002 $18,1742024 2 Names on Record Owner Occupied Assessor + 1 DocumentUpdated Aug 2026

27 Walnut Ave

1 acres

Last Sale Tax Bill Prior Sale Owner Records
$1,130,000Jun 2002 $12,5292024 Amount on Record Nov 1999 1 Name on Record Assessor + 1 DocumentUpdated Aug 2026

Wildfire Risk on Walnut Ave

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 of burnable land

Property Records in Nearby Streets