Union St, Milton, DE Property Records

Sussex County property records for 89 addresses on Union St, Milton, DE · Last verified August 2026

Union St Highlights

Properties 89
Median Sale Price $345,000
Deeds and Mortgages on File 113
Median Price per Sqft $260
Owner Occupied 49%
Median Annual Tax Bill $692
Median Year Built 1950
Median Ownership Tenure 7 years

Properties on Union St

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

100 Union St

1.18 acres

Last Sale Tax Bill Prior Sale Owner Records
$1,4912025 1 Name on Record Assessor + 1 DocumentUpdated Jun 2026

102 Union St

0.392 acres

Last Sale Tax Bill Prior Sale Owner Records
$550,000Oct 2021 $1,1002025 Amount on Record Feb 2011 1 Name on Record Assessor + 2 DocumentsUpdated Jun 2026

105 Union St

0.097 acres

Last Sale Tax Bill Prior Sale Owner Records
$650,000Mar 2005 $1,5182025 1 Name on Record Owner Occupied AssessorUpdated Jun 2026

106 Union St

0.038 acres

Last Sale Tax Bill Prior Sale Owner Records
$325,000Nov 2020 $3612025 Amount on Record Apr 2017 1 Name on Record Assessor + 3 DocumentsUpdated Jun 2026

107 Union St

0.104 acres

Last Sale Tax Bill Prior Sale Owner Records
$570,000Mar 2005 $1,3482025 1 Name on Record AssessorUpdated Jun 2026

109 Union St

0.193 acres

Last Sale Tax Bill Prior Sale Owner Records
$500,000Jan 2020 $3,4592025 Amount on Record Aug 2011 1 Name on Record Assessor + 2 DocumentsUpdated Jun 2026

110 Union St

0.15 acres

Last Sale Tax Bill Prior Sale Owner Records
$450,000Nov 2020 $1,3662025 Amount on Record Apr 2013 1 Name on Record Owner Occupied Assessor + 1 DocumentUpdated Jun 2026

113 Union St

0.257 acres

Last Sale Tax Bill Prior Sale Owner Records
$650,000Sep 2021 $1,5372025 Amount on Record Apr 2002 1 Name on Record Assessor + 1 DocumentUpdated Jun 2026

114 Union St

0.099 acres

Last Sale Tax Bill Prior Sale Owner Records
$150,000Apr 2026 $2842025 1 Name on Record Assessor + 1 DocumentUpdated Jun 2026

116 Union St

0.078 acres

Last Sale Tax Bill Prior Sale Owner Records
$2992025 1 Name on Record AssessorUpdated Jun 2026

121 Union St

0.117 acres

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

123 Union St

0.263 acres

Last Sale Tax Bill Prior Sale Owner Records
—Feb 1998 1 Name on Record Owner Occupied AssessorUpdated Jun 2026

129 Union St

0.104 acres

Last Sale Tax Bill Prior Sale Owner Records
$290,000May 2017 $6562025 2 Names on Record Assessor + 1 DocumentUpdated Jun 2026

131 Union St

4 bd · 1,474 sqft · 0.149 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$122,900Sep 2018 $7182025 Amount on Record Sep 2016 1 Name on Record Assessor + 5 DocumentsUpdated Jul 2026

204 Union St

0.165 acres

Last Sale Tax Bill Prior Sale Owner Records
$300,000Oct 2011 1 Name on Record Owner Occupied AssessorUpdated Jun 2026

205 Union St

1 ba · 2,368 sqft · 0.273 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$210,000Nov 2011 $8152025 1 Name on Record Owner Occupied AssessorUpdated Jun 2026

206 Union St

0.138 acres

Last Sale Tax Bill Prior Sale Owner Records
$450,000Oct 2011 1 Name on Record Owner Occupied AssessorUpdated Jun 2026

207 Union St

3 bd · 1,456 sqft · 0.168 acres

Last Sale Tax Bill Prior Sale Owner Records
$80,000Apr 2016 $6662025 —Jul 2017 1 Name on Record Assessor + 3 DocumentsUpdated Jun 2026

209 Union St

3 bd · 864 sqft · 0.103 acres

Last Sale Tax Bill Prior Sale Owner Records
$200,000Jun 2006 $6032025 1 Name on Record Owner Occupied AssessorUpdated Jun 2026

210 Union St

0.211 acres

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

211 Union St

3 bd · 837 sqft · 0.114 acres

Last Sale Tax Bill Prior Sale Owner Records
$196,000Nov 2016 $5522025 Amount on Record Sep 2015 1 Name on Record Owner Occupied Assessor + 1 DocumentUpdated Jun 2026

214 Union St

3 bd · 624 sqft · 0.192 acres

Last Sale Tax Bill Prior Sale Owner Records
$220,000Mar 2021 $4622025 Amount on Record May 2020 1 Name on Record Owner Occupied Assessor + 3 DocumentsUpdated Jun 2026

215 Union St

4 bd · 2,228 sqft · 1.15 acres

Last Sale Tax Bill Prior Sale Owner Records
$5222025 1 Name on Record Owner Occupied AssessorUpdated Jun 2026

216 Union St

0.245 acres

Last Sale Tax Bill Prior Sale Owner Records
$170,000Jun 2026 $1832025 —Oct 2024 1 Name on Record Assessor + 2 DocumentsUpdated Jul 2026

220 Union St

3 bd · 1,860 sqft · 0.146 acres

Last Sale Tax Bill Prior Sale Owner Records
$135,000Nov 2021 $6762025 Amount on Record Jan 2019 1 Name on Record Assessor + 3 DocumentsUpdated Jun 2026

301 Union St

4 bd · 3,790 sqft · 1.03 acres

Last Sale Tax Bill Prior Sale Owner Records
—Jun 1994 $1,4752025 1 Name on Record AssessorUpdated Jun 2026

302 Union St

0.1 acres

Last Sale Tax Bill Prior Sale Owner Records
—Sep 1988 $2442025 2 Names on Record Assessor + 2 DocumentsUpdated Jun 2026

306 Union St

3 ba · 1,344 sqft · 0.189 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$479,000Dec 2023 $4462025 Amount on Record Feb 2018 1 Name on Record Assessor + 3 DocumentsUpdated Jun 2026

309 Union St

3 bd · 1,624 sqft · 0.769 acres

Last Sale Tax Bill Prior Sale Owner Records
$337,150Jun 2025 $8782025 Amount on Record Mar 2014 2 Names on Record Owner Occupied AssessorUpdated Jun 2026

310 Union St

3 bd · 1,053 sqft · 0.147 acres

Last Sale Tax Bill Prior Sale Owner Records
$84,000Feb 1997 $6112025 1 Name on Record Assessor + 2 DocumentsUpdated Jun 2026

311 Union St

3 bd · 2 ba · 816 sqft · 0.209 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$502,500Sep 2023 $7152025 2 Names on Record Assessor + 2 DocumentsUpdated Jun 2026

312 Union St

0.132 acres

Last Sale Tax Bill Prior Sale Owner Records
—Oct 1993 $1482025 1 Name on Record Assessor + 2 DocumentsUpdated Jun 2026

313 Union St

2 bd · 1,080 sqft · 0.172 acres

Last Sale Tax Bill Prior Sale Owner Records
$40,000Oct 2000 $6662025 2 Names on Record AssessorUpdated Jun 2026

315 Union St

2 bd · 1,472 sqft · 0.321 acres

Last Sale Tax Bill Prior Sale Owner Records
$100,000Mar 2013 $4502025 —Aug 2012 1 Name on Record Owner Occupied AssessorUpdated Jun 2026

316 Union St

3 bd · 1,024 sqft · 0.323 acres

Last Sale Tax Bill Prior Sale Owner Records
$279,900Aug 2021 $6812025 1 Name on Record Owner Occupied Assessor + 1 DocumentUpdated Jun 2026

319 Union St

3 bd · 1,932 sqft · 0.582 acres

Last Sale Tax Bill Prior Sale Owner Records
$630,000Sep 2024 $1,0142025 Amount on Record Jan 2022 2 Names on Record Assessor + 1 DocumentUpdated Jun 2026

320 Union St

3 bd · 2,002 sqft · 0.357 acres

Last Sale Tax Bill Prior Sale Owner Records
$475,000Dec 2024 $9122025 Amount on Record May 2021 2 Names on Record Owner Occupied Assessor + 2 DocumentsUpdated Jun 2026

321 Union St

3 bd · 1,728 sqft · 0.696 acres

Last Sale Tax Bill Prior Sale Owner Records
$335,000May 2023 $7672025 Amount on Record Mar 2001 1 Name on Record Assessor + 1 DocumentUpdated Jun 2026

322 Union St

3 bd · 4 ba · 684 sqft · 0.252 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$299,000May 2020 $7382025 Amount on Record Apr 2017 1 Name on Record Owner Occupied Assessor + 2 DocumentsUpdated Jun 2026

324 Union St

2 bd · 1,440 sqft · 0.246 acres

Last Sale Tax Bill Prior Sale Owner Records
$5902025 2 Names on Record AssessorUpdated Jun 2026

325 Union St

4 bd · 2,444 sqft · 0.367 acres

Last Sale Tax Bill Prior Sale Owner Records
$150,000Nov 2011 $9342025 2 Names on Record Assessor + 2 DocumentsUpdated Jun 2026

326 Union St

4 bd · 1,704 sqft · 0.26 acres

Last Sale Tax Bill Prior Sale Owner Records
—Oct 2000 $4042025 1 Name on Record Owner Occupied AssessorUpdated Jun 2026

327 Union St

1.68 acres

Last Sale Tax Bill Prior Sale Owner Records
—Feb 1993 $7442025 1 Name on Record Owner Occupied AssessorUpdated Aug 2026

328 Union St

4 bd · 1,408 sqft · 0.141 acres

Last Sale Tax Bill Prior Sale Owner Records
$6162025 1 Name on Record Assessor + 1 DocumentUpdated Jun 2026

330 Union St

4 bd · 2,264 sqft · 0.603 acres

Last Sale Tax Bill Prior Sale Owner Records
$190,000May 2000 $4702025 1 Name on Record Owner Occupied Assessor + 1 DocumentUpdated Jun 2026

331 Union St

4 bd · 1,690 sqft · 0.165 acres

Last Sale Tax Bill Prior Sale Owner Records
$7012025 1 Name on Record Owner Occupied AssessorUpdated Jun 2026

333 Union St

4 bd · 2 ba · 1,532 sqft · 0.165 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$459,900Aug 2022 $6292025 Amount on Record Jul 2013 1 Name on Record Assessor + 2 DocumentsUpdated Jun 2026

334 Union St

3 bd · 1,554 sqft · 0.348 acres

Last Sale Tax Bill Prior Sale Owner Records
$318,500Jun 2020 $7082025 Amount on Record Sep 2016 2 Names on Record Assessor + 1 DocumentUpdated Jun 2026

337 Union St

4 bd · 1,688 sqft · 0.165 acres

Last Sale Tax Bill Prior Sale Owner Records
$390,000Jun 2021 $7612025 Amount on Record Aug 2016 2 Names on Record Assessor + 2 DocumentsUpdated Jun 2026

338 Union St

4 bd · 3 ba · 1,072 sqft · 0.376 acres · Garage · Pool

Last Sale Tax Bill Prior Sale Owner Records
$125,000Nov 2015 $7422025 1 Name on Record Owner Occupied Assessor + 2 DocumentsUpdated Jun 2026

402 Union St

4 bd · 2,096 sqft · 0.335 acres

Last Sale Tax Bill Prior Sale Owner Records
$7682025 1 Name on Record Owner Occupied Assessor + 2 DocumentsUpdated Jun 2026

403 Union St

4 bd · 2 ba · 1,248 sqft · 0.333 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$386,500May 2019 $6832025 Amount on Record Nov 2012 1 Name on Record Owner Occupied Assessor + 3 DocumentsUpdated Jun 2026

404 Union St

2 bd · 960 sqft · 0.228 acres

Last Sale Tax Bill Prior Sale Owner Records
$249,900Sep 2021 $5872025 —Aug 2011 1 Name on Record Assessor + 2 DocumentsUpdated Jun 2026

405 Union St

3 bd · 1,248 sqft · 0.165 acres

Last Sale Tax Bill Prior Sale Owner Records
$438,150Aug 2026 $4442025 Amount on Record Jul 2003 1 Name on Record Owner Occupied Assessor + 2 DocumentsUpdated Aug 2026

406 Union St

3 bd · 1,688 sqft · 0.219 acres

Last Sale Tax Bill Prior Sale Owner Records
$7522025 1 Name on Record Owner Occupied Assessor + 1 DocumentUpdated Jun 2026

407 Union St

3 bd · 1,328 sqft · 0.165 acres

Last Sale Tax Bill Prior Sale Owner Records
$196,395Dec 2018 $6382025 Amount on Record Sep 2014 2 Names on Record Owner Occupied Assessor + 2 DocumentsUpdated Jun 2026

408 Union St

3 bd · 1,280 sqft · 0.151 acres

Last Sale Tax Bill Prior Sale Owner Records
$150,000Apr 2018 $5502025 Amount on Record Aug 1990 1 Name on Record AssessorUpdated Jun 2026

409 Union St

4 bd · 900 sqft · 0.165 acres

Last Sale Tax Bill Prior Sale Owner Records
$189,000Aug 2020 $6642025 1 Name on Record Owner Occupied Assessor + 2 DocumentsUpdated Jun 2026

411 Union St

1,782 sqft · Built 1970 · 0.228 acres · Pool

Last Sale Tax Bill Prior Sale Owner Records
$375,000Nov 2023 $6662025 Amount on Record Nov 2023 2 Names on Record Assessor + 3 DocumentsUpdated Jun 2026

412 Union St

3 bd · 2 ba · 1,624 sqft · 0.307 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$450,000Feb 2022 $6922025 —Feb 2001 1 Name on Record Assessor + 1 DocumentUpdated Jun 2026

414 Union St

3 bd · 1,152 sqft · 0.169 acres · Pool

Last Sale Tax Bill Prior Sale Owner Records
$345,000Jul 2024 $6462025 2 Names on Record Owner Occupied AssessorUpdated Jun 2026

415 Union St

0.351 acres

Last Sale Tax Bill Prior Sale Owner Records
—Jun 2021 $1,9132025 1 Name on Record Assessor + 2 DocumentsUpdated Jun 2026

416 Union St

3 bd · 1,440 sqft · 0.167 acres

Last Sale Tax Bill Prior Sale Owner Records
$403,000May 2023 $6792025 1 Name on Record Owner Occupied Assessor + 1 DocumentUpdated Jun 2026

420 Union St

3 bd · 1,280 sqft · 0.344 acres

Last Sale Tax Bill Prior Sale Owner Records
$437,500Oct 2023 $7272025 1 Name on Record Assessor + 1 DocumentUpdated Jun 2026

501 Union St

4 bd · 2 ba · 1,626 sqft · 0.234 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$385,000Jun 2020 $7692025 Amount on Record Jan 2019 1 Name on Record Owner Occupied Assessor + 3 DocumentsUpdated Jun 2026

502 Union St

3 bd · 1,608 sqft · 0.177 acres

Last Sale Tax Bill Prior Sale Owner Records
$341,200Dec 2023 $7272025 Amount on Record Mar 2019 1 Name on Record Assessor + 5 DocumentsUpdated Jun 2026

505 Union St

4 bd · 3 ba · 2,636 sqft · 0.165 acres

Last Sale Tax Bill Prior Sale Owner Records
$80,000Sep 2016 $9562025 —Apr 1994 2 Names on Record Assessor + 2 DocumentsUpdated Jun 2026

506 Union St

0.358 acres

Last Sale Tax Bill Prior Sale Owner Records
—Jul 1992 $8142025 1 Name on Record AssessorUpdated Jun 2026

509 Union St

3 bd · 2 ba · 1,536 sqft · 0.333 acres

Last Sale Tax Bill Prior Sale Owner Records
$7442025 1 Name on Record Owner Occupied AssessorUpdated Jun 2026

510 Union St

1,414 sqft · Built 1918 · 0.826 acres

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

520 Union St

2 bd · 1,424 sqft · 0.402 acres

Last Sale Tax Bill Prior Sale Owner Records
$6722025 1 Name on Record Assessor + 1 DocumentUpdated Jun 2026

521 Union St

9.43 acres

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

524 Union St

5 ba · 1,484 sqft · 0.42 acres

Last Sale Tax Bill Prior Sale Owner Records
$275,000Feb 2012 $1,1502025 1 Name on Record Owner Occupied Assessor + 2 DocumentsUpdated Jun 2026

526 Union St

0.359 acres

Last Sale Tax Bill Prior Sale Owner Records
$279,999Jul 2022 $1932025 1 Name on Record Assessor + 1 DocumentUpdated Jun 2026

530 Union St

4 bd · 1,344 sqft · 0.282 acres

Last Sale Tax Bill Prior Sale Owner Records
$20,000Jul 1993 $1,1212025 1 Name on Record Owner Occupied AssessorUpdated Jun 2026

531 Union St

3 bd · 2,680 sqft · 0.401 acres

Last Sale Tax Bill Prior Sale Owner Records
—Feb 1993 $9222025 1 Name on Record Owner Occupied Assessor + 1 DocumentUpdated Jun 2026

532 Union St

3 bd · 1,056 sqft · 0.384 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$143,000Apr 2013 $7302025 —Apr 2013 1 Name on Record Owner Occupied Assessor + 1 DocumentUpdated Jun 2026

534 Union St

3 bd · 1,932 sqft · 0.654 acres

Last Sale Tax Bill Prior Sale Owner Records
$75,000Apr 2001 $8022025 1 Name on Record Owner Occupied Assessor + 2 DocumentsUpdated Jun 2026

535 Union St

3 bd · 3 ba · 1,764 sqft · 0.361 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$128,400May 2000 $8202025 1 Name on Record Owner Occupied Assessor + 1 DocumentUpdated Jun 2026

601 Union St

3 bd · 1,664 sqft · 0.2 acres

Last Sale Tax Bill Prior Sale Owner Records
$340,000Jul 2024 $7412025 Amount on Record Nov 2023 1 Name on Record Assessor + 2 DocumentsUpdated Jun 2026

603 Union St

2 bd · 960 sqft · 0.2 acres

Last Sale Tax Bill Prior Sale Owner Records
$160,000Sep 2023 $5972025 Amount on Record Jul 2017 1 Name on Record Owner Occupied Assessor + 3 DocumentsUpdated Jun 2026

604 Union St

3 bd · 4 ba · 2,091 sqft · 0.551 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$112,000Dec 2017 $1,1202025 Amount on Record Jun 2013 1 Name on Record Owner Occupied Assessor + 4 DocumentsUpdated Jun 2026

606 Union St

2 bd · 1,200 sqft · 0.287 acres

Last Sale Tax Bill Prior Sale Owner Records
$232,000Dec 2021 $6752025 1 Name on Record Assessor + 2 DocumentsUpdated Jun 2026

607 Union St

3 bd · 1,092 sqft · 0.557 acres

Last Sale Tax Bill Prior Sale Owner Records
$160,000Dec 1999 $8672025 1 Name on Record Assessor + 1 DocumentUpdated Jun 2026

608 Union St

3 bd · 1,208 sqft · 0.155 acres

Last Sale Tax Bill Prior Sale Owner Records
$235,000Sep 2004 $4532025 1 Name on Record Owner Occupied AssessorUpdated Jun 2026

610 Union St

3 bd · 2 ba · 896 sqft · 0.376 acres

Last Sale Tax Bill Prior Sale Owner Records
$257,500Aug 2019 $5542025 Amount on Record Oct 2016 1 Name on Record Owner Occupied Assessor + 1 DocumentUpdated Jun 2026

611 Union St

0.596 acres

Last Sale Tax Bill Prior Sale Owner Records
$6572025 1 Name on Record AssessorUpdated Jun 2026

612 Union St

3 bd · 1,104 sqft · 0.287 acres

Last Sale Tax Bill Prior Sale Owner Records
$6232025 1 Name on Record Assessor + 1 DocumentUpdated Jun 2026

616 Union St

3 bd · 1,328 sqft · 0.298 acres

Last Sale Tax Bill Prior Sale Owner Records
$95,000Oct 2005 $5782025 2 Names on Record AssessorUpdated Jun 2026

Property Records in Nearby Streets