William St, Dexter, NY Property Records

Jefferson County and Brownville Town property records for 35 addresses on William St, Dexter, NY · Last verified August 2026

William St Highlights

Properties 35
Median Sale Price $209,000
Deeds and Mortgages on File 40
Median Price per Sqft $101
Owner Occupied 51%
Median Annual Tax Bill $3,494
Median Year Built 1890
Median Ownership Tenure 16 years

Properties on William St

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

120 William St

2,820 sqft · Built 1999 · 0.173 acres

Last Sale Tax Bill Prior Sale Owner Records
$1,000Jul 2011 $1,8382025 Amount on Record Dec 2010 2 Names on Record AssessorUpdated May 2026

124 William St, #128

9,699 sqft · Built 1840 · 0.177 acres

Last Sale Tax Bill Prior Sale Owner Records
$35,000Oct 2013 $6872025 2 Names on Record AssessorUpdated May 2026

136 William St

Built 1880 · 0.065 acres

Last Sale Tax Bill Prior Sale Owner Records
$175,000Sep 2010 1 Name on Record AssessorUpdated May 2026

137 William St

5 bd · 1 ba · 3,040 sqft · 0.261 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$4,0692025 1 Name on Record Owner Occupied Assessor + 1 DocumentUpdated May 2026

147 William St

3,102 sqft · Built 1910 · 0.081 acres

Last Sale Tax Bill Prior Sale Owner Records
$143,000Apr 2023 $1,7822025 Amount on Record May 2021 1 Name on Record Assessor + 3 DocumentsUpdated May 2026

207 William St

3 bd · 2 ba · 2,199 sqft · 0.9 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$3,9282025 2 Names on Record Assessor + 2 DocumentsUpdated May 2026

208 William St

3 bd · 1.5 ba · 1,980 sqft · 0.289 acres · Garage · Pool

Last Sale Tax Bill Prior Sale Owner Records
$3,6342025 1 Name on Record Owner Occupied Assessor + 1 DocumentUpdated May 2026

217 William St

4 bd · 1 ba · 2,041 sqft · 0.331 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$62,000May 1998 $3,6062025 2 Names on Record Owner Occupied Assessor + 1 DocumentUpdated May 2026

222 William St

3 bd · 3 ba · 2,018 sqft · 0.399 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$380,000Aug 2025 $6,2862025 Amount on Record Jul 2021 2 Names on Record Assessor + 3 DocumentsUpdated May 2026

226 William St

2 bd · 1 ba · 1,205 sqft · 0.249 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$2,4832025 1 Name on Record Assessor + 1 DocumentUpdated May 2026

229 William St

5 bd · 2 ba · 2,856 sqft · 0.33 acres · Garage · Pool

Last Sale Tax Bill Prior Sale Owner Records
$214,900Mar 2010 $6,1972025 1 Name on Record Owner Occupied AssessorUpdated May 2026

234 William St

4 bd · 2 ba · 2,340 sqft · 0.341 acres · Pool

Last Sale Tax Bill Prior Sale Owner Records
$82,000Sep 2004 $3,3392025 2 Names on Record AssessorUpdated May 2026

237 William St

4,106 sqft · Built 1933 · 0.269 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$209,000Oct 2020 $5,8652025 1 Name on Record Assessor + 2 DocumentsUpdated May 2026

242 William St

4 bd · 1.5 ba · 2,151 sqft · 0.257 acres

Last Sale Tax Bill Prior Sale Owner Records
$3,0312025 2 Names on Record Owner Occupied Assessor + 1 DocumentUpdated May 2026

248 William St

5 bd · 1.5 ba · 1,962 sqft · 0.58 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$212,000Nov 2020 $4,3912025 2 Names on Record Owner Occupied Assessor + 1 DocumentUpdated May 2026

303 William St, #305

6 bd · 2 ba · 2,574 sqft · 0.478 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$44,900Dec 2000 $3,9992025 2 Names on Record Assessor + 1 DocumentUpdated Jul 2026

400 William St

4 bd · 1.5 ba · 2,014 sqft · 0.189 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$57,000Jan 1997 $2,9602025 2 Names on Record Owner Occupied AssessorUpdated May 2026

403 William St

2 bd · 2.5 ba · 2,017 sqft · 0.251 acres · Garage · Pool

Last Sale Tax Bill Prior Sale Owner Records
$150,000Oct 2022 $2,2872025 1 Name on Record Assessor + 4 DocumentsUpdated Aug 2026

410 William St

2 bd · 1 ba · 1,800 sqft · 0.237 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$3,5502025 2 Names on Record Owner Occupied AssessorUpdated May 2026

416 William St

4 bd · 1 ba · 1,641 sqft · 0.287 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$3,4942025 2 Names on Record Assessor + 1 DocumentUpdated May 2026

417 William St

4 bd · 2 ba · 1,626 sqft · 0.1 acres

Last Sale Tax Bill Prior Sale Owner Records
$18,000Nov 2005 $2,3432025 Amount on Record Aug 1994 1 Name on Record Owner Occupied AssessorUpdated May 2026

420 William St

3 bd · 2.5 ba · 1,948 sqft · 0.35 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$198,000Jun 2024 $3,4512025 Amount on Record Dec 2022 1 Name on Record Assessor + 4 DocumentsUpdated Jul 2026

500 William St

2 bd · 1.5 ba · 1,655 sqft · 0.5 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$3,0872025 2 Names on Record Owner Occupied AssessorUpdated May 2026

501 William St

3 bd · 2 ba · 2,169 sqft · 0.402 acres · Garage · Pool

Last Sale Tax Bill Prior Sale Owner Records
$137,800Apr 2023 $4,6442025 Amount on Record Apr 2010 1 Name on Record Assessor + 1 DocumentUpdated May 2026

511 William St

3 bd · 1 ba · 1,506 sqft · 0.66 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$4,1252025 2 Names on Record Owner Occupied Assessor + 1 DocumentUpdated May 2026

518 William St

7,104 sqft · Built 1879 · 2.9 acres

Last Sale Tax Bill Prior Sale Owner Records
$3,7322025 1 Name on Record AssessorUpdated May 2026

600 William St

3,318 sqft · Built 1980 · 4.2 acres

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

607 William St, #609

4 bd · 1.5 ba · 1,732 sqft · 0.904 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$62,000May 2005 $2,7642025 1 Name on Record Owner Occupied AssessorUpdated May 2026

616 William St

2 bd · 1 ba · 904 sqft · 0.4 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$71,550Jul 2007 $2,7922025 1 Name on Record Owner Occupied Assessor + 3 DocumentsUpdated May 2026

626 William St

4 bd · 1.5 ba · 1,252 sqft · 0.2 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$55,000Dec 1995 $2,3572025 1 Name on Record Owner Occupied AssessorUpdated May 2026

632 William St

3 bd · 2 ba · 1,638 sqft · 0.215 acres · Garage · Pool

Last Sale Tax Bill Prior Sale Owner Records
$75,500Jul 1998 $3,6762025 1 Name on Record Owner Occupied Assessor + 5 DocumentsUpdated May 2026

638 William St

3 bd · 1 ba · 1,378 sqft · 0.2 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$2,6942025 2 Names on Record Owner Occupied Assessor + 1 DocumentUpdated May 2026

702 William St

4 bd · 2 ba · 1,702 sqft · 0.296 acres

Last Sale Tax Bill Prior Sale Owner Records
$214,000Oct 2021 $5,7382025 Amount on Record Dec 2016 2 Names on Record Assessor + 2 DocumentsUpdated May 2026

706 William St

3 bd · 1 ba · 1,271 sqft · 0.757 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$65,800Feb 2004 $2,7222025 1 Name on Record Owner Occupied AssessorUpdated May 2026

707 William St

3 bd · 2 ba · 2,069 sqft · 1.58 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$179,000Sep 2008 $4,5172025 Amount on Record Apr 2006 1 Name on Record Owner Occupied Assessor + 1 DocumentUpdated May 2026

Wildfire Risk on William St

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

Wildfire RiskLow
this street's cells rank at the 13th percentile of exposed land nationally · 32nd in New York
Wildfire LikelihoodLow — less than 1 in 10,000 per year
ExposureDirect
2 of 4 cells directly exposed · 4 adjoin burnable vegetation

Property Records in Nearby Streets