William St, Scotch Plains, NJ Property Records

Union County and Scotch Plains Township property records for 84 addresses on William St, Scotch Plains, NJ · Last verified October 2026

William St Highlights

Properties 84
Median Sale Price $610,000
Deeds and Mortgages on File 93
Median Price per Sqft $395
Owner Occupied 94%
Median Annual Tax Bill $10,720
Median Year Built 1954
Median Ownership Tenure 13 years

Properties on William St

Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.

169 William St

2,227 sqft · built 1941 · 0.155 acres

Last Sale Tax Bill Prior Sale Owner Records
$647,000Apr 2023 $14,2642025 Amount on Record May 2017 2 Owners on Record Owner Occupied Assessor + 2 DocumentsUpdated Oct 2026

175 William St

2,108 sqft · built 1936 · 0.171 acres

Last Sale Tax Bill Prior Sale Owner Records
$415,000Feb 2015 $10,9792025 Amount on Record Aug 2011 Owner on Record Owner Occupied Assessor + 1 DocumentUpdated Oct 2026

179 William St

1,131 sqft · built 1955 · 0.114 acres

Last Sale Tax Bill Prior Sale Owner Records
$239,000Dec 2013 $9,1642025 2 Owners on Record Owner Occupied AssessorUpdated Jul 2026

182 William St

2,052 sqft · built 1986 · 0.114 acres

Last Sale Tax Bill Prior Sale Owner Records
$200,000Jul 1999 $13,9682025 Owner on Record Owner Occupied AssessorUpdated Oct 2026

183 William St

1,272 sqft · built 1958 · 0.114 acres

Last Sale Tax Bill Prior Sale Owner Records
$377,000Jul 2017 $10,1152025 Amount on Record Nov 1984 Owner on Record Owner Occupied Assessor + 1 DocumentUpdated Jul 2026

186 William St

1,634 sqft · built 1920 · 0.114 acres

Last Sale Tax Bill Prior Sale Owner Records
$260,000May 2003 $8,8432025 Owner on Record Owner Occupied AssessorUpdated Jul 2026

187 William St

2,108 sqft · built 1930 · 0.171 acres

Last Sale Tax Bill Prior Sale Owner Records
$595,000Sep 2021 $13,6842025 Amount on Record May 2018 2 Owners on Record Owner Occupied Assessor + 5 DocumentsUpdated Oct 2026

190 William St

1,895 sqft · built 1988 · 0.114 acres

Last Sale Tax Bill Prior Sale Owner Records
$160,000Jul 1995 $12,1522025 2 Owners on Record Owner Occupied Assessor + 1 DocumentUpdated Aug 2026

193 William St

1,010 sqft · built 1958 · 0.114 acres

Last Sale Tax Bill Prior Sale Owner Records
$140,000Feb 1990 $7,8052025 2 Owners on Record Owner Occupied Assessor + 2 DocumentsUpdated Jul 2026

204 William St

1,544 sqft · built 1925 · 0.114 acres

Last Sale Tax Bill Prior Sale Owner Records
—Sep 2000 $8,5962025 2 Owners on Record Owner Occupied AssessorUpdated Jul 2026

207 William St

1,197 sqft · built 1945 · 0.171 acres

Last Sale Tax Bill Prior Sale Owner Records
$165,000Jun 1988 $9,0032025 2 Owners on Record AssessorUpdated Jul 2026

208 William St

1,678 sqft · built 1930 · 0.114 acres

Last Sale Tax Bill Prior Sale Owner Records
$300,000Jul 2009 $10,0902025 2 Owners on Record Owner Occupied Assessor + 2 DocumentsUpdated Oct 2026

211 William St

1,918 sqft · built 1918 · 0.114 acres

Last Sale Tax Bill Prior Sale Owner Records
$536,000Aug 2020 $13,3132025 Amount on Record Nov 2019 Owner on Record Owner Occupied Assessor + 2 DocumentsUpdated Oct 2026

214 William St

1,561 sqft · built 1920 · 0.171 acres

Last Sale Tax Bill Prior Sale Owner Records
$681,000May 2024 $9,7572025 Amount on Record Apr 1983 2 Owners on Record Owner Occupied Assessor + 1 DocumentUpdated Jul 2026

215 William St

1,972 sqft · built 1925 · 0.114 acres

Last Sale Tax Bill Prior Sale Owner Records
$185,000Mar 1994 $11,4732025 2 Owners on Record Owner Occupied Assessor + 3 DocumentsUpdated Jul 2026

219 William St

1,932 sqft · built 1929 · 0.114 acres

Last Sale Tax Bill Prior Sale Owner Records
$600,000Feb 2026 $10,5722025 2 Owners on Record Owner Occupied Assessor + 1 DocumentUpdated Sep 2026

220 William St

1,462 sqft · built 1919 · 0.171 acres

Last Sale Tax Bill Prior Sale Owner Records
$192,000Jul 1998 $9,5102025 Owner on Record Owner Occupied AssessorUpdated Jul 2026

223 William St

1,608 sqft · built 1950 · 0.114 acres

Last Sale Tax Bill Prior Sale Owner Records
$165,000Oct 1996 $10,9172025 Owner on Record Owner Occupied Assessor + 1 DocumentUpdated Jul 2026

225 William St

1,872 sqft · built 1930 · 0.114 acres

Last Sale Tax Bill Prior Sale Owner Records
$47,500Aug 1976 $9,7812025 2 Owners on Record Owner Occupied AssessorUpdated Jul 2026

228 William St

1,583 sqft · built 1935 · 0.114 acres

Last Sale Tax Bill Prior Sale Owner Records
$325,000Jul 2007 $10,7202025 2 Owners on Record Owner Occupied AssessorUpdated Oct 2026

230 William St

1,480 sqft · built 1930 · 0.117 acres

Last Sale Tax Bill Prior Sale Owner Records
$160,500Sep 1992 $9,6822025 2 Owners on Record Owner Occupied AssessorUpdated Jul 2026

231 William St

1,170 sqft · built 1952 · 0.114 acres

Last Sale Tax Bill Prior Sale Owner Records
$265,000Apr 2003 $9,6332025 2 Owners on Record Owner Occupied Assessor + 1 DocumentUpdated Jul 2026

234 William St

1,400 sqft · built 1956 · 0.114 acres

Last Sale Tax Bill Prior Sale Owner Records
$10,2262025 2 Owners on Record Owner Occupied AssessorUpdated Jul 2026

305 William St

1,380 sqft · built 1958 · 0.169 acres

Last Sale Tax Bill Prior Sale Owner Records
$280,000Jul 2002 $10,2752025 Amount on Record Apr 1997 2 Owners on Record Owner Occupied AssessorUpdated Aug 2026

308 William St

1,377 sqft · built 1930 · 0.114 acres

Last Sale Tax Bill Prior Sale Owner Records
$178,000Sep 1998 $10,1522025 Amount on Record Feb 1994 2 Owners on Record Owner Occupied AssessorUpdated Jul 2026

309 William St

1,380 sqft · built 1958 · 0.114 acres

Last Sale Tax Bill Prior Sale Owner Records
$640,000Aug 2025 $10,9542025 Amount on Record Dec 1997 Owner on Record Owner Occupied AssessorUpdated Oct 2026

313 William St

1,110 sqft · built 1955 · 0.114 acres

Last Sale Tax Bill Prior Sale Owner Records
$42,443Jun 2013 $9,9792025 Owner on Record Owner Occupied AssessorUpdated Jul 2026

314 William St

1,183 sqft · built 1961 · 0.114 acres

Last Sale Tax Bill Prior Sale Owner Records
$390,000Jul 2017 $10,5962025 Amount on Record Nov 2011 2 Owners on Record Owner Occupied Assessor + 1 DocumentUpdated Oct 2026

316 William St

1,391 sqft · built 1930 · 0.114 acres

Last Sale Tax Bill Prior Sale Owner Records
$415,000Oct 2006 $12,3012025 —Jul 2004 2 Owners on Record Owner Occupied Assessor + 3 DocumentsUpdated Oct 2026

317 William St

1,545 sqft · built 1950 · 0.114 acres

Last Sale Tax Bill Prior Sale Owner Records
$585,000Dec 2023 $12,5972025 2 Owners on Record Owner Occupied Assessor + 1 DocumentUpdated Jul 2026

320 William St

1,391 sqft · built 1957 · 0.114 acres

Last Sale Tax Bill Prior Sale Owner Records
$467,500Nov 2018 $11,0782025 Owner on Record Assessor + 3 DocumentsUpdated Jul 2026

321 William St

1,455 sqft · built 1950 · 0.172 acres

Last Sale Tax Bill Prior Sale Owner Records
$389,900Oct 2016 $11,2142025 2 Owners on Record Owner Occupied AssessorUpdated Jul 2026

324 William St

1,425 sqft · built 1950 · 0.114 acres

Last Sale Tax Bill Prior Sale Owner Records
$662,500Apr 2025 $10,4232025 Amount on Record Apr 2004 2 Owners on Record Owner Occupied AssessorUpdated Oct 2026

329 William St

1,457 sqft · built 1948 · 0.171 acres

Last Sale Tax Bill Prior Sale Owner Records
$38,000Nov 1974 $10,9672025 2 Owners on Record Owner Occupied AssessorUpdated Jul 2026

330 William St

1,384 sqft · built 1930 · 0.114 acres

Last Sale Tax Bill Prior Sale Owner Records
$375,000Dec 2007 $10,5222025 Amount on Record Apr 2003 Owner on Record Assessor + 1 DocumentUpdated Oct 2026

332 William St

1,473 sqft · built 1925 · 0.114 acres

Last Sale Tax Bill Prior Sale Owner Records
$610,000Mar 2022 $10,3002025 Amount on Record Apr 2010 2 Owners on Record Owner Occupied Assessor + 2 DocumentsUpdated Oct 2026

333 William St

1,296 sqft · built 1947 · 0.114 acres

Last Sale Tax Bill Prior Sale Owner Records
$29,465Mar 2012 $9,9422025 Amount on Record Jan 2005 Owner on Record Owner Occupied Assessor + 2 DocumentsUpdated Oct 2026

336 William St

1,600 sqft · built 2024 · 0.114 acres

Last Sale Tax Bill Prior Sale Owner Records
$840,000Oct 2024 $15,5862025 Amount on Record Nov 2023 2 Owners on Record Owner Occupied Assessor + 1 DocumentUpdated Jul 2026

339 William St

1,319 sqft · built 1956 · 0.142 acres

Last Sale Tax Bill Prior Sale Owner Records
$445,000Feb 2023 $10,8932025 Amount on Record Aug 1994 2 Owners on Record Owner Occupied Assessor + 1 DocumentUpdated Jul 2026

340 William St

1,437 sqft · built 1930 · 0.171 acres

Last Sale Tax Bill Prior Sale Owner Records
$565,000Sep 2021 $12,1522025 Amount on Record Jul 2013 2 Owners on Record Owner Occupied Assessor + 1 DocumentUpdated Jul 2026

343 William St

1,971 sqft · built 1954 · 0.142 acres

Last Sale Tax Bill Prior Sale Owner Records
$835,000Apr 2023 $14,2522025 Amount on Record Mar 2019 Owner on Record Owner Occupied Assessor + 6 DocumentsUpdated Jul 2026

346 William St

1,341 sqft · built 1954 · 0.114 acres

Last Sale Tax Bill Prior Sale Owner Records
$50,000Jun 1977 $10,0282025 2 Owners on Record Owner Occupied Assessor + 2 DocumentsUpdated Jul 2026

347 William St

2,510 sqft · built 2010 · 0.114 acres

Last Sale Tax Bill Prior Sale Owner Records
$825,000Sep 2019 $18,9332025 Amount on Record Feb 2010 2 Owners on Record Owner Occupied Assessor + 1 DocumentUpdated Oct 2026

350 William St

2,518 sqft · built 2010 · 0.114 acres

Last Sale Tax Bill Prior Sale Owner Records
$995,000May 2025 $15,1532025 Amount on Record Feb 2003 2 Owners on Record Owner Occupied AssessorUpdated Oct 2026

351 William St

2,316 sqft · built 2010 · 0.114 acres

Last Sale Tax Bill Prior Sale Owner Records
$755,000Jan 2019 $17,1792025 Amount on Record Mar 2011 2 Owners on Record Owner Occupied Assessor + 3 DocumentsUpdated Jul 2026

400 William St

1,384 sqft · built 1930 · 0.114 acres

Last Sale Tax Bill Prior Sale Owner Records
$529,999Oct 2017 $12,6592025 Amount on Record Feb 2017 2 Owners on Record Owner Occupied Assessor + 2 DocumentsUpdated Jul 2026

404 William St

1,384 sqft · built 1930 · 0.114 acres

Last Sale Tax Bill Prior Sale Owner Records
$425,000Mar 2018 $10,0652025 2 Owners on Record Owner Occupied Assessor + 2 DocumentsUpdated Jul 2026

405 William St

1,737 sqft · built 1955 · 0.114 acres

Last Sale Tax Bill Prior Sale Owner Records
$257,900Aug 2000 $12,4982025 Amount on Record Dec 1994 Owner on Record Owner Occupied Assessor + 3 DocumentsUpdated Aug 2026

408 William St

1,248 sqft · built 1930 · 0.114 acres

Last Sale Tax Bill Prior Sale Owner Records
$430,000Aug 2007 $9,7812025 Amount on Record Sep 2000 Owner on Record Assessor + 1 DocumentUpdated Oct 2026

409 William St

2,019 sqft · built 1955 · 0.114 acres

Last Sale Tax Bill Prior Sale Owner Records
$390,000Sep 2005 $14,0172025 —Aug 2005 2 Owners on Record Owner Occupied Assessor + 2 DocumentsUpdated Oct 2026

412 William St

1,248 sqft · built 1930 · 0.114 acres

Last Sale Tax Bill Prior Sale Owner Records
$430,000Aug 2010 $10,7942025 Amount on Record Dec 2001 2 Owners on Record Owner Occupied AssessorUpdated Oct 2026

413 William St

1,675 sqft · built 1955 · 0.114 acres

Last Sale Tax Bill Prior Sale Owner Records
$455,000Sep 2004 $11,3502025 Amount on Record Jun 1995 2 Owners on Record Owner Occupied Assessor + 1 DocumentUpdated Oct 2026

416 William St

1,248 sqft · built 1930 · 0.114 acres

Last Sale Tax Bill Prior Sale Owner Records
$400,000Jun 2021 $9,8922025 —Jun 2021 Owner on Record Owner Occupied Assessor + 1 DocumentUpdated Jul 2026

417 William St

1,324 sqft · built 1955 · 0.114 acres

Last Sale Tax Bill Prior Sale Owner Records
$409,000Sep 2019 $10,0902025 Amount on Record Jun 2010 Owner on Record Owner Occupied Assessor + 3 DocumentsUpdated Oct 2026

420 William St

1,248 sqft · built 1930 · 0.114 acres

Last Sale Tax Bill Prior Sale Owner Records
$361,000May 2021 $9,3492025 2 Owners on Record Owner Occupied Assessor + 1 DocumentUpdated Jul 2026

421 William St

1,269 sqft · built 1955 · 0.114 acres

Last Sale Tax Bill Prior Sale Owner Records
$590,000Aug 2022 $10,0902025 Amount on Record Jun 2018 Owner on Record Owner Occupied Assessor + 2 DocumentsUpdated Jul 2026

424 William St

1,462 sqft · built 1930 · 0.114 acres

Last Sale Tax Bill Prior Sale Owner Records
$500,000Aug 2022 $10,2632025 Amount on Record Jun 1988 2 Owners on Record Owner Occupied Assessor + 1 DocumentUpdated Jul 2026

425 William St

1,269 sqft · built 1955 · 0.114 acres

Last Sale Tax Bill Prior Sale Owner Records
$10,0042025 2 Owners on Record Owner Occupied Assessor + 2 DocumentsUpdated Jul 2026

428 William St

1,734 sqft · built 1930 · 0.114 acres

Last Sale Tax Bill Prior Sale Owner Records
—Oct 2003 $10,8932025 Owner on Record Owner Occupied AssessorUpdated Jul 2026

429 William St

1,269 sqft · built 1955 · 0.114 acres

Last Sale Tax Bill Prior Sale Owner Records
$153,000May 1991 $10,0412025 2 Owners on Record Owner Occupied AssessorUpdated Jul 2026

432 William St

0.114 acres

Last Sale Tax Bill Prior Sale Owner Records
$436,275May 2019 $10,0902025 Amount on Record Sep 2006 2 Owners on Record Owner Occupied Assessor + 1 DocumentUpdated Oct 2026

433 William St

1,737 sqft · built 1955 · 0.114 acres

Last Sale Tax Bill Prior Sale Owner Records
$450,000Dec 2019 $12,2022025 Amount on Record Sep 1998 2 Owners on Record Owner Occupied Assessor + 2 DocumentsUpdated Jul 2026

436 William St

1,384 sqft · built 1930 · 0.114 acres

Last Sale Tax Bill Prior Sale Owner Records
—Nov 2005 $9,9052025 2 Owners on Record Owner Occupied Assessor + 2 DocumentsUpdated Jul 2026

437 William St

2,207 sqft · built 1955 · 0.114 acres

Last Sale Tax Bill Prior Sale Owner Records
$325,000Mar 2013 $13,9682025 Amount on Record Aug 2006 Owner on Record Owner Occupied AssessorUpdated Oct 2026

440 William St

1,728 sqft · built 1930 · 0.114 acres

Last Sale Tax Bill Prior Sale Owner Records
$572,000Jul 2021 $12,4492025 Amount on Record Jun 1978 2 Owners on Record Owner Occupied Assessor + 1 DocumentUpdated Jul 2026

503 William St

1,329 sqft · built 1954 · 0.137 acres

Last Sale Tax Bill Prior Sale Owner Records
$415,000Aug 2018 $10,2882025 2 Owners on Record Owner Occupied Assessor + 3 DocumentsUpdated Jul 2026

506 William St

1,324 sqft · built 1954 · 0.114 acres

Last Sale Tax Bill Prior Sale Owner Records
$10,6702025 2 Owners on Record Owner Occupied Assessor + 1 DocumentUpdated Jul 2026

507 William St

1,734 sqft · built 1954 · 0.114 acres

Last Sale Tax Bill Prior Sale Owner Records
$230,000May 1998 $11,2512025 Amount on Record Apr 1994 Owner on Record Owner Occupied AssessorUpdated Jul 2026

510 William St

1,532 sqft · built 1954 · 0.114 acres

Last Sale Tax Bill Prior Sale Owner Records
$11,4112025 Owner on Record Owner Occupied AssessorUpdated Jul 2026

511 William St

1,665 sqft · built 1954 · 0.114 acres

Last Sale Tax Bill Prior Sale Owner Records
$682,000Jul 2024 $11,8932025 Amount on Record Jun 1978 2 Owners on Record Owner Occupied Assessor + 2 DocumentsUpdated Jul 2026

514 William St

1,324 sqft · built 1954 · 0.114 acres

Last Sale Tax Bill Prior Sale Owner Records
$185,000Jun 1998 $10,5722025 2 Owners on Record Owner Occupied AssessorUpdated Jul 2026

515 William St

1,329 sqft · built 1954 · 0.114 acres

Last Sale Tax Bill Prior Sale Owner Records
$750,000Jun 2025 $10,0042025 Amount on Record Apr 1985 2 Owners on Record Owner Occupied Assessor + 2 DocumentsUpdated Jul 2026

518 William St

2,458 sqft · built 1954 · 0.114 acres

Last Sale Tax Bill Prior Sale Owner Records
$13,6712025 Owner on Record Owner Occupied AssessorUpdated Jul 2026

519 William St

1,309 sqft · built 1954 · 0.117 acres

Last Sale Tax Bill Prior Sale Owner Records
$153,000Jul 1991 $10,4112025 2 Owners on Record Owner Occupied AssessorUpdated Jul 2026

520 William St

1,324 sqft · built 1954 · 0.153 acres

Last Sale Tax Bill Prior Sale Owner Records
$100,000Nov 2019 $10,6702025 Owner on Record Owner Occupied Assessor + 1 DocumentUpdated Jul 2026

522 William St

1,540 sqft · built 1954 · 0.178 acres

Last Sale Tax Bill Prior Sale Owner Records
$400,000Sep 2005 $11,6462025 2 Owners on Record Owner Occupied AssessorUpdated Oct 2026

524 William St

1,540 sqft · built 1954 · 0.117 acres

Last Sale Tax Bill Prior Sale Owner Records
$730,000Jan 2026 $11,3742025 Amount on Record Sep 1977 2 Owners on Record Owner Occupied Assessor + 2 DocumentsUpdated Jul 2026

527 William St

1,539 sqft · built 1954 · 0.125 acres

Last Sale Tax Bill Prior Sale Owner Records
$178,500Jun 1995 $11,3372025 2 Owners on Record Owner Occupied Assessor + 2 DocumentsUpdated Jul 2026

528 William St

1,324 sqft · built 1954 · 0.114 acres

Last Sale Tax Bill Prior Sale Owner Records
$409,000Aug 2006 $10,1892025 Amount on Record May 1997 2 Owners on Record Owner Occupied Assessor + 1 DocumentUpdated Oct 2026

531 William St

1,791 sqft · built 1954 · 0.114 acres

Last Sale Tax Bill Prior Sale Owner Records
$180,000Jan 1993 $12,2762025 Owner on Record Owner Occupied AssessorUpdated Jul 2026

532 William St

1,346 sqft · built 1954 · 0.114 acres

Last Sale Tax Bill Prior Sale Owner Records
$422,000Sep 2015 $11,0292025 Amount on Record Jun 2014 Owner on Record Owner Occupied AssessorUpdated Oct 2026

535 William St

1,329 sqft · built 1954 · 0.178 acres

Last Sale Tax Bill Prior Sale Owner Records
$198,000Jan 1996 $11,7822025 2 Owners on Record Owner Occupied AssessorUpdated Jul 2026

536 William St

1,319 sqft · built 1954 · 0.114 acres

Last Sale Tax Bill Prior Sale Owner Records
$435,000May 2021 $10,2752025 Amount on Record Sep 2012 Owner on Record Owner Occupied Assessor + 1 DocumentUpdated Jul 2026

540 William St

1,756 sqft · built 1955 · 0.114 acres

Last Sale Tax Bill Prior Sale Owner Records
$730,000Jun 2022 $13,8072025 Amount on Record Sep 1993 Owner on Record Assessor + 1 DocumentUpdated Jul 2026

Property Records in Nearby Streets