Delaware Ave, Union, NJ Property Records

Union County and Union Township property records for 69 addresses on Delaware Ave, Union, NJ · Last verified August 2026

Delaware Ave Highlights

Properties 69
Median Sale Price $515,000
Deeds and Mortgages on File 90
Median Price per Sqft $318
Owner Occupied 93%
Median Annual Tax Bill $10,775
Median Year Built 1941
Median Ownership Tenure 12 years

Properties on Delaware Ave

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

214 Delaware Ave

165,000 sqft · Built 1950 · 0.16 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$289,900Mar 2005 $12,3152025 Amount on Record Dec 1994 1 Name on Record Owner Occupied Assessor + 1 DocumentUpdated Jul 2026

220 Delaware Ave

1,255 sqft · Built 1940 · 0.114 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
—Apr 1977 $9,7022025 1 Name on Record Assessor + 3 DocumentsUpdated Aug 2026

224 Delaware Ave

Built 1945 · 0.114 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$300,000Jul 2005 $14,1572025 2 Names on Record Owner Occupied Assessor + 2 DocumentsUpdated Jul 2026

228 Delaware Ave

1,316 sqft · Built 1946 · 0.114 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$382,250Nov 2019 $12,8042025 Amount on Record Jul 2006 2 Names on Record Owner Occupied Assessor + 3 DocumentsUpdated Jul 2026

232 Delaware Ave

Built 1940 · 0.114 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$325,000Jun 2018 $10,0992025 Amount on Record Feb 2017 2 Names on Record Owner Occupied Assessor + 4 DocumentsUpdated Jul 2026

236 Delaware Ave

Built 1946 · 0.126 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$560,000Jun 2026 $9,8192025 Amount on Record Apr 2009 1 Name on Record Owner Occupied Assessor + 4 DocumentsUpdated Jul 2026

244 Delaware Ave

Built 1948 · 0.114 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
—Sep 1979 $11,4052025 2 Names on Record Owner Occupied AssessorUpdated Jul 2026

245 Delaware Ave

Built 1938 · 0.114 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$250,000Jun 2010 $11,2182025 1 Name on Record AssessorUpdated Aug 2026

248 Delaware Ave

1,728 sqft · Built 1950 · 0.114 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$560,000Aug 2024 $10,7052025 2 Names on Record Owner Occupied AssessorUpdated Jul 2026

251 Delaware Ave

1 sqft · Built 1940 · 0.114 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$320,000Jul 2015 $11,2182025 Amount on Record Nov 2014 2 Names on Record Owner Occupied AssessorUpdated Jul 2026

253 Delaware Ave

Built 1940 · 0.114 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$184,000Dec 1988 $11,1022025 1 Name on Record Owner Occupied AssessorUpdated Jul 2026

254 Delaware Ave

Built 1940 · 0.114 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$280,000May 2005 $9,3762025 1 Name on Record Owner Occupied AssessorUpdated Jul 2026

256 Delaware Ave

Built 1941 · 0.114 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$168,000Jul 1994 $10,8222025 1 Name on Record Owner Occupied AssessorUpdated Jul 2026

257 Delaware Ave

Built 1940 · 0.114 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$254,000Sep 2014 $11,0552025 Amount on Record Mar 2004 1 Name on Record Owner Occupied Assessor + 1 DocumentUpdated Jul 2026

261 Delaware Ave

Built 1940 · 0.114 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$269,000Sep 2003 $10,4952025 2 Names on Record Owner Occupied AssessorUpdated Jul 2026

262 Delaware Ave

Built 1940 · 0.114 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
—Mar 1982 $10,4252025 1 Name on Record Owner Occupied AssessorUpdated Jul 2026

265 Delaware Ave

Built 1940 · 0.114 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$225,000Feb 2017 $10,2622025 Amount on Record Feb 1998 2 Names on Record Owner Occupied Assessor + 2 DocumentsUpdated Jul 2026

270 Delaware Ave

1 sqft · Built 1940 · 0.114 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
—Nov 1991 $10,1222025 2 Names on Record Owner Occupied Assessor + 1 DocumentUpdated Jul 2026

271 Delaware Ave

Built 1940 · 0.114 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$189,900Dec 2001 $9,0262025 2 Names on Record Owner Occupied AssessorUpdated Jul 2026

272 Delaware Ave

1,660 sqft · Built 1940 · 0.114 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$160,000Nov 2015 $11,1722025 1 Name on Record Owner Occupied Assessor + 3 DocumentsUpdated Jul 2026

273 Delaware Ave

30,000 sqft · Built 1938 · 0.114 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$210,000Dec 2000 $10,4492025 Amount on Record Sep 1994 1 Name on Record Owner Occupied Assessor + 1 DocumentUpdated Aug 2026

274 Delaware Ave

1 sqft · Built 1940 · 0.114 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$875,000Mar 2025 $13,0382025 Amount on Record Apr 2024 2 Names on Record Owner Occupied Assessor + 1 DocumentUpdated Jul 2026

275 Delaware Ave

1,434 sqft · Built 1938 · 0.091 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$445,000Jul 2021 $9,9822025 Amount on Record Jul 2010 1 Name on Record Owner Occupied Assessor + 1 DocumentUpdated Jul 2026

276 Delaware Ave

Built 1940 · 0.114 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$257,000Dec 2009 $10,0292025 —Jul 2009 1 Name on Record Owner Occupied Assessor + 2 DocumentsUpdated Jul 2026

280 Delaware Ave

Built 1930 · 0.114 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$9,5862025 1 Name on Record Owner Occupied Assessor + 1 DocumentUpdated Jul 2026

281 Delaware Ave

Built 1940 · 0.137 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$155,000Feb 1993 $10,6592025 2 Names on Record Owner Occupied AssessorUpdated Jul 2026

300 Delaware Ave

Built 1928 · 0.114 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$210,000Jun 2014 $9,6792025 Amount on Record Jul 2005 1 Name on Record Owner Occupied Assessor + 2 DocumentsUpdated Jul 2026

301 Delaware Ave

1,890 sqft · Built 1942 · 0.114 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$390,000Feb 2021 $11,6622025 1 Name on Record Owner Occupied Assessor + 1 DocumentUpdated Jul 2026

302 Delaware Ave

1,102 sqft · Built 1941 · 0.097 acres

Last Sale Tax Bill Prior Sale Owner Records
$350,000Apr 2020 $8,3032025 Amount on Record Aug 1986 2 Names on Record Owner Occupied Assessor + 2 DocumentsUpdated Jul 2026

305 Delaware Ave

Built 1950 · 0.114 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$245,000Aug 2014 $9,7722025 Amount on Record Mar 2007 2 Names on Record Owner Occupied Assessor + 1 DocumentUpdated Jul 2026

307 Delaware Ave

1,552 sqft · Built 1940 · 0.114 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$352,000May 2018 $11,4282025 Amount on Record Jun 2004 2 Names on Record Owner Occupied Assessor + 2 DocumentsUpdated Jul 2026

310 Delaware Ave

1,618 sqft · Built 1950 · 0.132 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$515,000Mar 2023 $11,6852025 —Dec 1982 1 Name on Record Owner Occupied Assessor + 1 DocumentUpdated Jul 2026

314 Delaware Ave

1,287 sqft · Built 1940 · 0.114 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$310,000Aug 2018 $10,1692025 1 Name on Record Owner Occupied Assessor + 1 DocumentUpdated Jul 2026

315 Delaware Ave

Built 1940 · 0.114 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$148,000Apr 1991 $11,1022025 1 Name on Record Owner Occupied AssessorUpdated Jul 2026

318 Delaware Ave

2,300 sqft · Built 2019 · 0.114 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$877,000May 2026 $17,0962025 Amount on Record Dec 2018 1 Name on Record Owner Occupied Assessor + 7 DocumentsUpdated Jul 2026

319 Delaware Ave

Built 1942 · 0.114 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$381,000Sep 2025 $10,7752025 1 Name on Record Owner Occupied Assessor + 1 DocumentUpdated Jul 2026

322 Delaware Ave

Built 1940 · 0.114 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$375,000Sep 2006 Amount on Record Jan 2006 2 Names on Record Owner Occupied Assessor + 2 DocumentsUpdated Jul 2026

323 Delaware Ave

1,781 sqft · Built 1948 · 0.114 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$245,000Jan 2012 $9,9362025 2 Names on Record Owner Occupied Assessor + 1 DocumentUpdated Jul 2026

326 Delaware Ave

Built 1942 · 0.114 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$10,2852025 2 Names on Record Owner Occupied AssessorUpdated Jul 2026

327 Delaware Ave

174,000 sqft · Built 1941 · 0.114 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$160,000Apr 2002 $11,1022025 Amount on Record Aug 1994 2 Names on Record Owner Occupied Assessor + 1 DocumentUpdated Jul 2026

330 Delaware Ave

1,760 sqft · Built 1940 · 0.114 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$379,900Nov 2020 $11,9182025 Amount on Record Oct 2003 1 Name on Record Owner Occupied Assessor + 1 DocumentUpdated Jul 2026

331 Delaware Ave

1 sqft · Built 1942 · 0.114 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$441,881Apr 2023 $10,1922025 Amount on Record Oct 2015 1 Name on Record Assessor + 3 DocumentsUpdated Aug 2026

334 Delaware Ave

Built 1941 · 0.114 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$155,000Apr 1999 $10,0292025 Amount on Record Nov 1994 2 Names on Record Owner Occupied AssessorUpdated Jul 2026

335 Delaware Ave

Built 1940 · 0.114 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$154,000May 1995 $11,3352025 —May 1995 1 Name on Record Owner Occupied AssessorUpdated Jul 2026

336 Delaware Ave

Built 1940 · 0.114 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$390,000Jul 2021 $10,0762025 Amount on Record Aug 2008 2 Names on Record Owner Occupied Assessor + 1 DocumentUpdated Jul 2026

337 Delaware Ave

1,670 sqft · Built 1940 · 0.114 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$530,000May 2023 $11,4982025 Amount on Record Jan 2018 1 Name on Record Owner Occupied Assessor + 5 DocumentsUpdated Jul 2026

340 Delaware Ave

1,546 sqft · Built 1940 · 0.114 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$300,000Mar 2011 $11,0082025 Amount on Record Jul 1999 1 Name on Record Owner Occupied Assessor + 3 DocumentsUpdated Jul 2026

343 Delaware Ave

1,838 sqft · Built 1942 · 0.114 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$650,000May 2022 $10,7292025 Amount on Record Jul 2021 1 Name on Record Owner Occupied Assessor + 3 DocumentsUpdated Jul 2026

344 Delaware Ave

Built 1941 · 0.114 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$295,000Nov 2010 $10,5192025 1 Name on Record Owner Occupied AssessorUpdated Jul 2026

350 Delaware Ave

1,642 sqft · Built 1940 · 0.114 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$370,000Sep 2019 $11,6622025 Amount on Record Jun 2006 2 Names on Record Owner Occupied Assessor + 2 DocumentsUpdated Jul 2026

354 Delaware Ave

1,848 sqft · Built 1964 · 0.114 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$575,000Apr 2022 $12,9912025 Amount on Record Sep 2000 2 Names on Record Owner Occupied Assessor + 1 DocumentUpdated Jul 2026

355 Delaware Ave

1,419 sqft · Built 1960 · 0.103 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$425,000Jun 2021 $11,6152025 2 Names on Record Owner Occupied Assessor + 1 DocumentUpdated Jul 2026

358 Delaware Ave

1,374 sqft · Built 1969 · 0.114 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$238,228Sep 2019 $10,6822025 Amount on Record Aug 2014 1 Name on Record Owner Occupied Assessor + 1 DocumentUpdated Jul 2026

359 Delaware Ave

Built 1960 · 0.114 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$170,500May 1986 $14,1342025 2 Names on Record Owner Occupied Assessor + 2 DocumentsUpdated Aug 2026

362 Delaware Ave

Built 1950 · 0.114 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$10,9152025 2 Names on Record Owner Occupied Assessor + 2 DocumentsUpdated Jul 2026

363 Delaware Ave

Built 1954 · 0.114 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$139,900Jan 1997 $10,0762025 2 Names on Record Owner Occupied AssessorUpdated Jul 2026

366 Delaware Ave

1,131 sqft · Built 1950 · 0.114 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$825,000May 2025 $10,5892025 Amount on Record Nov 2018 2 Names on Record Owner Occupied Assessor + 3 DocumentsUpdated Jul 2026

369 Delaware Ave

155,000 sqft · Built 1952 · 0.114 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$269,000Feb 2015 $11,6622025 Amount on Record Mar 2005 1 Name on Record Owner Occupied Assessor + 2 DocumentsUpdated Jul 2026

372 Delaware Ave

Built 1960 · 0.114 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$198,000May 1996 $13,6212025 2 Names on Record Owner Occupied AssessorUpdated Jul 2026

373 Delaware Ave

1 sqft · Built 1952 · 0.114 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$269,000Oct 2017 $10,2622025 Amount on Record Feb 1997 2 Names on Record Owner Occupied Assessor + 2 DocumentsUpdated Jul 2026

376 Delaware Ave

Built 1956 · 0.114 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$13,0142025 1 Name on Record Owner Occupied AssessorUpdated Jul 2026

377 Delaware Ave

Built 1954 · 0.114 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$605,000Aug 2025 $11,9412025 —Nov 2006 2 Names on Record Owner Occupied AssessorUpdated Jul 2026

378 Delaware Ave

Built 1956 · 0.114 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$216,000Jul 1989 $13,0142025 2 Names on Record Owner Occupied AssessorUpdated Jul 2026

379 Delaware Ave

1,344 sqft · Built 1952 · 0.114 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$472,000Jun 2021 $10,7522025 Amount on Record May 2009 2 Names on Record Owner Occupied Assessor + 1 DocumentUpdated Jul 2026

380 Delaware Ave

1,110 sqft · Built 1954 · 0.114 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$325,000Sep 2003 $9,0732025 Amount on Record Mar 1997 1 Name on Record Assessor + 1 DocumentUpdated Aug 2026

383 Delaware Ave

Built 1950 · 0.114 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$302,500Nov 2014 $10,0522025 1 Name on Record Owner Occupied Assessor + 3 DocumentsUpdated Jul 2026

388 Delaware Ave

1,532 sqft · Built 1956 · 0.118 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$305,000Jul 2004 $9,0032025 2 Names on Record Assessor + 1 DocumentUpdated Jul 2026

389 Delaware Ave

Built 1950 · 0.15 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$193,000Dec 1998 $11,2182025 2 Names on Record Owner Occupied AssessorUpdated Jul 2026

395 Delaware Ave

1 sqft · Built 1950 · 0.137 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
—Oct 1994 $10,8222025 1 Name on Record Owner Occupied AssessorUpdated Jul 2026

Property Records in Nearby Streets