Armstrong Ave, Wilmington, DE Property Records

New Castle County property records for 84 addresses on Armstrong Ave, Wilmington, DE · Last verified October 2026

Armstrong Ave Highlights

Properties 84
Median Sale Price $255,000
Deeds and Mortgages on File 94
Median Price per Sqft $239
Owner Occupied 82%
Median Annual Tax Bill $2,337
Median Year Built 1940
Median Ownership Tenure 17 years

Properties on Armstrong Ave

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

100 Armstrong Ave

3 bd · 2.5 ba · 1,352 sqft · built 2005 · 0.15 acres

Last Sale Tax Bill Prior Sale Owner Records
$179,900Jan 2008 $2,7992025 Amount on Record Jan 2006 Owner on Record Owner Occupied Assessor + 1 DocumentUpdated Oct 2026

101 Armstrong Ave

2 bd · 1 ba · 1,104 sqft · built 1950 · 0.119 acres

Last Sale Tax Bill Prior Sale Owner Records
$86,900Feb 1990 $1,9932025 2 Owners on Record Owner Occupied AssessorUpdated May 2026

102 Armstrong Ave

3 bd · 2.5 ba · 1,352 sqft · built 2005 · 0.139 acres

Last Sale Tax Bill Prior Sale Owner Records
—Aug 2025 $2,7562025 Amount on Record Dec 2021 2 Owners on Record Owner Occupied Assessor + 1 DocumentUpdated Aug 2026

104 Armstrong Ave

2 bd · 1 ba · 1,698 sqft · built 1935 · 0.13 acres

Last Sale Tax Bill Prior Sale Owner Records
$111,780Nov 2012 $2,2402025 Amount on Record Nov 2011 Owner on Record Owner Occupied Assessor + 1 DocumentUpdated Oct 2026

105 Armstrong Ave

3 bd · 1 ba · 920 sqft · built 1938 · 0.1 acres

Last Sale Tax Bill Prior Sale Owner Records
—Jan 2023 $2,1212025 Amount on Record May 2005 Owner on Record Owner Occupied Assessor + 1 DocumentUpdated Aug 2026

107 Armstrong Ave

3 bd · 1 ba · 1,568 sqft · built 1938 · 0.139 acres

Last Sale Tax Bill Prior Sale Owner Records
$2,7482025 Owner on Record Owner Occupied AssessorUpdated May 2026

109 Armstrong Ave

2 bd · 1 ba · 1,040 sqft · built 1938 · 0.189 acres

Last Sale Tax Bill Prior Sale Owner Records
$325,000Sep 2022 $2,8672025 Amount on Record Jul 2011 2 Owners on Record Owner Occupied Assessor + 2 DocumentsUpdated Oct 2026

200 Armstrong Ave

9,052 sqft · built 1930 · 0.16 acres

Last Sale Tax Bill Prior Sale Owner Records
Owner on Record AssessorUpdated Apr 2026

201 Armstrong Ave

1,665 sqft · built 1975 · 0.119 acres

Last Sale Tax Bill Prior Sale Owner Records
Owner on Record AssessorUpdated Apr 2026

203 Armstrong Ave

4 bd · 2 ba · 0.139 acres

Last Sale Tax Bill Prior Sale Owner Records
Owner on Record AssessorUpdated Apr 2026

206 Armstrong Ave

4 bd · 2.5 ba · 1,242 sqft · built 1935 · 0.189 acres

Last Sale Tax Bill Prior Sale Owner Records
$2,2772025 Owner on Record Owner Occupied Assessor + 2 DocumentsUpdated Sep 2026

207 Armstrong Ave

4 bd · 2 ba · 1,422 sqft · built 1935 · 0.18 acres

Last Sale Tax Bill Prior Sale Owner Records
$130,000Jan 2009 Owner on Record AssessorUpdated Oct 2026

208 Armstrong Ave

2 bd · 1 ba · 936 sqft · built 1938 · 0.2 acres

Last Sale Tax Bill Prior Sale Owner Records
$25,900Apr 1974 2 Owners on Record Owner Occupied AssessorUpdated Apr 2026

301 Armstrong Ave

3 bd · 1 ba · 992 sqft · built 1943 · 0.16 acres

Last Sale Tax Bill Prior Sale Owner Records
$156,000Sep 2012 $1,8752025 Owner on Record Owner Occupied Assessor + 1 DocumentUpdated May 2026

303 Armstrong Ave

4 bd · 2 ba · 1,644 sqft · built 1938 · 0.139 acres

Last Sale Tax Bill Prior Sale Owner Records
$245,000Oct 2008 $2,5872025 Owner on Record Owner Occupied AssessorUpdated Oct 2026

305 Armstrong Ave

3 bd · 1 ba · 936 sqft · built 1950 · 0.139 acres

Last Sale Tax Bill Prior Sale Owner Records
$2,2022025 Owner on Record Assessor + 2 DocumentsUpdated Apr 2026

309 Armstrong Ave

2 bd · 1 ba · 1,224 sqft · built 1935 · 0.23 acres

Last Sale Tax Bill Prior Sale Owner Records
$144,900Jan 2003 $2,6272025 Owner on Record Owner Occupied Assessor + 2 DocumentsUpdated Oct 2026

310 Armstrong Ave

2 bd · 1 ba · 1,197 sqft · built 1940 · 0.23 acres

Last Sale Tax Bill Prior Sale Owner Records
$89,000Feb 1989 Owner on Record Owner Occupied AssessorUpdated May 2026

311 Armstrong Ave

3 bd · 1 ba · 1,040 sqft · built 1961 · 0.139 acres

Last Sale Tax Bill Prior Sale Owner Records
—Mar 1999 2 Owners on Record Owner Occupied AssessorUpdated May 2026

314 Armstrong Ave

4 bd · 1 ba · 1,180 sqft · built 1938 · 0.139 acres

Last Sale Tax Bill Prior Sale Owner Records
—Sep 2021 $2,6502025 Amount on Record May 2017 Owner on Record Owner Occupied Assessor + 2 DocumentsUpdated Aug 2026

401 Armstrong Ave

2 bd · 1 ba · 840 sqft · built 1933 · 0.089 acres

Last Sale Tax Bill Prior Sale Owner Records
$175,000Jul 2016 $2,3352025 Amount on Record Apr 2014 Owner on Record Owner Occupied Assessor + 1 DocumentUpdated May 2026

402 Armstrong Ave

3 bd · 2 ba · 1,812 sqft · built 1935 · 0.219 acres

Last Sale Tax Bill Prior Sale Owner Records
—Jul 2009 Amount on Record Sep 2003 Owner on Record Owner Occupied AssessorUpdated Oct 2026

403 Armstrong Ave

3 bd · 1 ba · 1,116 sqft · built 1935 · 0.23 acres

Last Sale Tax Bill Prior Sale Owner Records
$27,500Feb 1980 2 Owners on Record Owner Occupied AssessorUpdated May 2026

404 Armstrong Ave

2 bd · 1 ba · 1,200 sqft · built 1993 · 0.189 acres

Last Sale Tax Bill Prior Sale Owner Records
$199,000Apr 2009 $2,4602025 Amount on Record Sep 2007 Owner on Record Owner Occupied Assessor + 3 DocumentsUpdated Oct 2026

407 Armstrong Ave

3 bd · 2.5 ba · 1,994 sqft · built 2017 · 0.089 acres

Last Sale Tax Bill Prior Sale Owner Records
$2,6912025 2 Owners on Record Owner Occupied Assessor + 2 DocumentsUpdated May 2026

409 Armstrong Ave

3 bd · 2.5 ba · 1,994 sqft · built 2017 · 0.089 acres

Last Sale Tax Bill Prior Sale Owner Records
—Sep 2017 $3,3232025 Amount on Record Apr 2014 Owner on Record Owner Occupied AssessorUpdated May 2026

410 Armstrong Ave

2 bd · 1 ba · 1,064 sqft · built 1935 · 0.089 acres

Last Sale Tax Bill Prior Sale Owner Records
$255,000May 2022 $2,2432025 Amount on Record — 2 Owners on Record Owner Occupied Assessor + 5 DocumentsUpdated Aug 2026

411 Armstrong Ave

4 bd · 2 ba · 1,375 sqft · built 1950 · 0.089 acres

Last Sale Tax Bill Prior Sale Owner Records
—Jul 2019 $2,2142025 —Oct 2013 Owner on Record Owner Occupied Assessor + 2 DocumentsUpdated Apr 2026

412 Armstrong Ave

2 bd · 1 ba · 1,078 sqft · built 1935 · 0.139 acres

Last Sale Tax Bill Prior Sale Owner Records
$145,000Jun 2003 $2,5572025 Owner on Record Owner Occupied Assessor + 1 DocumentUpdated Oct 2026

414 Armstrong Ave

3 bd · 1 ba · 816 sqft · built 1935 · 0.139 acres

Last Sale Tax Bill Prior Sale Owner Records
—Oct 2018 $1,9612025 Amount on Record Jul 2018 Owner on Record Owner Occupied Assessor + 5 DocumentsUpdated Sep 2026

415 Armstrong Ave

3 bd · 1 ba · 780 sqft · built 1950 · 0.089 acres

Last Sale Tax Bill Prior Sale Owner Records
2 Owners on Record Assessor + 1 DocumentUpdated Apr 2026

416 Armstrong Ave

3 bd · 1 ba · 1,252 sqft · built 1935 · 0.18 acres

Last Sale Tax Bill Prior Sale Owner Records
$94,950Apr 2005 $2,5572025 Owner on Record Owner Occupied Assessor + 1 DocumentUpdated Oct 2026

417 Armstrong Ave

2 bd · 1 ba · 1,204 sqft · built 1940 · 0.089 acres

Last Sale Tax Bill Prior Sale Owner Records
$175,000May 2012 $2,5202025 Amount on Record Dec 2002 Owner on Record Owner Occupied AssessorUpdated Oct 2026

420 Armstrong Ave

3 bd · 1 ba · 1,424 sqft · built 1950 · 0.16 acres

Last Sale Tax Bill Prior Sale Owner Records
$120,000May 2014 $2,2632025 Owner on Record Owner Occupied AssessorUpdated Apr 2026

421 Armstrong Ave

3 bd · 1.5 ba · 936 sqft · built 1935 · 0.23 acres

Last Sale Tax Bill Prior Sale Owner Records
$131,250Aug 2014 $2,5192025 Owner on Record Owner Occupied Assessor + 1 DocumentUpdated May 2026

422 Armstrong Ave

4 bd · 2 ba · 1,308 sqft · built 1935 · 0.119 acres

Last Sale Tax Bill Prior Sale Owner Records
$138,500Oct 2003 $1,8052025 Owner on Record Owner Occupied AssessorUpdated Oct 2026

423 Armstrong Ave

3 bd · 1 ba · 956 sqft · built 1935 · 0.139 acres

Last Sale Tax Bill Prior Sale Owner Records
$194,500Jul 2018 $2,3172025 Amount on Record Nov 2004 2 Owners on Record Owner Occupied Assessor + 2 DocumentsUpdated Oct 2026

425 Armstrong Ave

3 bd · 2 ba · 892 sqft · built 1931 · 0.119 acres

Last Sale Tax Bill Prior Sale Owner Records
$90,000Jun 2017 $2,2572025 —Nov 1986 Owner on Record Assessor + 4 DocumentsUpdated Apr 2026

427 Armstrong Ave

2 bd · 1 ba · 832 sqft · built 1940 · 0.119 acres

Last Sale Tax Bill Prior Sale Owner Records
$177,000Jan 2005 $3942025 Owner on Record Owner Occupied Assessor + 2 DocumentsUpdated Oct 2026

501 Armstrong Ave

2 bd · 1 ba · 775 sqft · built 1950 · 0.089 acres

Last Sale Tax Bill Prior Sale Owner Records
$2,1202025 Owner on Record Owner Occupied Assessor + 4 DocumentsUpdated May 2026

502 Armstrong Ave

4 bd · 2 ba · 825 sqft · built 1937 · 0.139 acres

Last Sale Tax Bill Prior Sale Owner Records
$62,000Dec 1995 $2,5532025 Owner on Record Owner Occupied AssessorUpdated May 2026

503 Armstrong Ave

3 bd · 1 ba · 1,632 sqft · built 1950 · 0.08 acres

Last Sale Tax Bill Prior Sale Owner Records
—Jan 1996 Owner on Record Owner Occupied AssessorUpdated May 2026

504 Armstrong Ave

3 bd · 1.5 ba · 947 sqft · built 1960 · 0.139 acres

Last Sale Tax Bill Prior Sale Owner Records
$2,7862025 2 Owners on Record Owner Occupied Assessor + 1 DocumentUpdated May 2026

505 Armstrong Ave

3 bd · 1 ba · 64 sqft · built 1951 · 0.089 acres

Last Sale Tax Bill Prior Sale Owner Records
$174,900Jul 2022 $1,7142025 —Jul 2022 2 Owners on Record Owner Occupied Assessor + 2 DocumentsUpdated Oct 2026

506 Armstrong Ave

2 bd · 1 ba · 1,071 sqft · built 1960 · 0.15 acres

Last Sale Tax Bill Prior Sale Owner Records
$140,000Jun 2004 $5622025 —Feb 2004 Owner on Record Owner Occupied Assessor + 1 DocumentUpdated Oct 2026

508 Armstrong Ave

5 bd · 1 ba · 230 sqft · built 1931 · 0.139 acres

Last Sale Tax Bill Prior Sale Owner Records
$176,500Nov 2010 $2,1812025 Amount on Record Feb 2007 Owner on Record Owner Occupied AssessorUpdated Oct 2026

509 Armstrong Ave

3 bd · 1 ba · 1,062 sqft · built 1950 · 0.139 acres

Last Sale Tax Bill Prior Sale Owner Records
$235,000Aug 2021 $2,3372025 Amount on Record Feb 2016 Owner on Record Owner Occupied Assessor + 1 DocumentUpdated Apr 2026

510 Armstrong Ave

3 bd · 1 ba · 1,049 sqft · built 1950 · 0.089 acres

Last Sale Tax Bill Prior Sale Owner Records
$2,0202025 Owner on Record Owner Occupied AssessorUpdated May 2026

511 Armstrong Ave

3 bd · 2.5 ba · 1,920 sqft · built 2008 · 0.139 acres

Last Sale Tax Bill Prior Sale Owner Records
$80,000Nov 2006 $3,5362025 Amount on Record Apr 2005 Owner on Record Owner Occupied Assessor + 1 DocumentUpdated Oct 2026

512 Armstrong Ave

3 bd · 1 ba · 1,704 sqft · built 1958 · 0.18 acres

Last Sale Tax Bill Prior Sale Owner Records
$2,2342025 2 Owners on Record Owner Occupied Assessor + 4 DocumentsUpdated May 2026

513 Armstrong Ave

4 bd · 2 ba · 1,486 sqft · built 1929 · 0.139 acres

Last Sale Tax Bill Prior Sale Owner Records
$194,500Nov 2009 $2,4892025 Amount on Record Mar 2005 Owner on Record Assessor + 4 DocumentsUpdated Oct 2026

517 Armstrong Ave

3 bd · 1 ba · 1,536 sqft · built 1940 · 0.25 acres

Last Sale Tax Bill Prior Sale Owner Records
—Sep 1996 $2,0942025 Owner on Record Owner Occupied AssessorUpdated Apr 2026

600 Armstrong Ave

3 bd · 2 ba · 1,011 sqft · built 1999 · 0.139 acres

Last Sale Tax Bill Prior Sale Owner Records
$205,000Oct 2009 2 Owners on Record Owner Occupied Assessor + 1 DocumentUpdated Oct 2026

601 Armstrong Ave

3 bd · 2 ba · 1,458 sqft · built 1940 · 0.11 acres

Last Sale Tax Bill Prior Sale Owner Records
$102,000Jun 2002 2 Owners on Record Owner Occupied AssessorUpdated Oct 2026

602 Armstrong Ave

2 bd · 1 ba · 944 sqft · built 1950 · 0.119 acres

Last Sale Tax Bill Prior Sale Owner Records
—Sep 1998 $9212025 Owner on Record Owner Occupied Assessor + 1 DocumentUpdated Apr 2026

603 Armstrong Ave

2 bd · 1 ba · 25 sqft · built 1955 · 0.139 acres

Last Sale Tax Bill Prior Sale Owner Records
$122,000Nov 2003 $2,1262025 Owner on Record Owner Occupied AssessorUpdated Oct 2026

604 Armstrong Ave

2 bd · 1 ba · 728 sqft · built 1940 · 0.119 acres

Last Sale Tax Bill Prior Sale Owner Records
$134,900Jun 2005 Owner on Record Owner Occupied AssessorUpdated Oct 2026

605 Armstrong Ave

2 bd · 1 ba · 1,023 sqft · built 1950 · 0.119 acres

Last Sale Tax Bill Prior Sale Owner Records
$178,000Jun 2007 $2,6362025 Amount on Record Aug 2005 2 Owners on Record Owner Occupied Assessor + 1 DocumentUpdated Oct 2026

606 Armstrong Ave

3 bd · 1 ba · 1,130 sqft · built 1960 · 0.119 acres

Last Sale Tax Bill Prior Sale Owner Records
$118,000Mar 1999 $2,1582025 2 Owners on Record Owner Occupied Assessor + 1 DocumentUpdated Apr 2026

607 Armstrong Ave

2 bd · 1 ba · 945 sqft · built 1934 · 0.18 acres

Last Sale Tax Bill Prior Sale Owner Records
$175,000Jan 2018 $1,9672025 Amount on Record Nov 2010 2 Owners on Record Owner Occupied Assessor + 3 DocumentsUpdated Oct 2026

610 Armstrong Ave

0.9 acres

Last Sale Tax Bill Prior Sale Owner Records
Owner on Record AssessorUpdated Apr 2026

612 Armstrong Ave

3 bd · 2 ba · 1,200 sqft · built 2010 · 0.119 acres

Last Sale Tax Bill Prior Sale Owner Records
$200,000Jul 2010 $2,6242025 Amount on Record Jul 2007 2 Owners on Record Owner Occupied Assessor + 1 DocumentUpdated Oct 2026

613 Armstrong Ave

0.169 acres

Last Sale Tax Bill Prior Sale Owner Records
—Dec 1997 Owner on Record AssessorUpdated Apr 2026

614 Armstrong Ave

3 bd · 1 ba · 1,000 sqft · built 1935 · 0.18 acres

Last Sale Tax Bill Prior Sale Owner Records
—Jan 1998 2 Owners on Record Assessor + 2 DocumentsUpdated May 2026

615 Armstrong Ave

3 bd · 1 ba · 1,216 sqft · built 1950 · 0.3 acres

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

616 Armstrong Ave

2 bd · 1 ba · 816 sqft · built 1935 · 0.18 acres

Last Sale Tax Bill Prior Sale Owner Records
$75,000Aug 2016 $1902025 Owner on Record Owner Occupied AssessorUpdated May 2026

617 Armstrong Ave

3 bd · 1.5 ba · 1,326 sqft · built 1940 · 0.18 acres

Last Sale Tax Bill Prior Sale Owner Records
$276,000Jul 2025 $9072025 Owner on Record Owner Occupied AssessorUpdated Apr 2026

618 Armstrong Ave

3 bd · 1 ba · 2,064 sqft · built 1935 · 0.269 acres

Last Sale Tax Bill Prior Sale Owner Records
$7282025 Owner on Record Owner Occupied Assessor + 1 DocumentUpdated May 2026

620 Armstrong Ave

2 bd · 1 ba · 1,032 sqft · built 1935 · 0.089 acres

Last Sale Tax Bill Prior Sale Owner Records
$25,500Dec 1977 $1,3692025 2 Owners on Record Owner Occupied AssessorUpdated May 2026

621 Armstrong Ave

2 bd · 1 ba · 1,867 sqft · built 1940 · 0.319 acres

Last Sale Tax Bill Prior Sale Owner Records
$220,000Jul 2007 $4,1312025 Amount on Record May 2004 Owner on Record Owner Occupied Assessor + 1 DocumentUpdated Oct 2026

623 Armstrong Ave

2 bd · 1 ba · 936 sqft · built 1940 · 0.219 acres

Last Sale Tax Bill Prior Sale Owner Records
$109,000Jul 2001 $2,4312025 2 Owners on Record Owner Occupied AssessorUpdated Oct 2026

624 Armstrong Ave

3 bd · 1 ba · 1,440 sqft · built 1950 · 0.219 acres

Last Sale Tax Bill Prior Sale Owner Records
$21,000Mar 1973 Owner on Record Assessor + 4 DocumentsUpdated Jul 2026

700 Armstrong Ave

3 bd · 3.5 ba · 1,980 sqft · built 2016 · 0.139 acres

Last Sale Tax Bill Prior Sale Owner Records
$53,000Jan 2016 $3,9232025 Amount on Record Aug 2010 Owner on Record Owner Occupied Assessor + 2 DocumentsUpdated Oct 2026

701 Armstrong Ave

2 bd · 1 ba · 672 sqft · built 1939 · 0.1 acres

Last Sale Tax Bill Prior Sale Owner Records
$74,900Dec 1994 $2,0122025 Owner on Record Owner Occupied Assessor + 1 DocumentUpdated May 2026

703 Armstrong Ave

5 bd · 4 ba · 1,614 sqft · built 1940 · 0.139 acres

Last Sale Tax Bill Prior Sale Owner Records
$67,972Aug 2012 $3,2542025 Amount on Record Oct 2006 Owner on Record AssessorUpdated Oct 2026

705 Armstrong Ave

3 bd · 2.5 ba · 1,704 sqft · built 2009 · 0.16 acres

Last Sale Tax Bill Prior Sale Owner Records
$255,000Apr 2014 $3,3932025 Amount on Record Dec 2009 2 Owners on Record Owner Occupied Assessor + 2 DocumentsUpdated Oct 2026

706 Armstrong Ave

2 bd · 1 ba · 960 sqft · built 1982 · 0.18 acres

Last Sale Tax Bill Prior Sale Owner Records
$215,000Aug 2007 $2,1862025 Amount on Record Sep 2004 2 Owners on Record Owner Occupied AssessorUpdated Oct 2026

708 Armstrong Ave

3 bd · 2.5 ba · 1,276 sqft · built 2010 · 0.11 acres

Last Sale Tax Bill Prior Sale Owner Records
$191,000Jan 2011 $3,0562025 Amount on Record Oct 2010 2 Owners on Record AssessorUpdated Oct 2026

709 Armstrong Ave

4 bd · 3.5 ba · 2,497 sqft · built 2005 · 0.13 acres

Last Sale Tax Bill Prior Sale Owner Records
$285,000May 2018 $2,8862025 Amount on Record Feb 2006 2 Owners on Record Owner Occupied Assessor + 1 DocumentUpdated Aug 2026

710 Armstrong Ave

3 bd · 1 ba · 1,344 sqft · built 1948 · 0.11 acres

Last Sale Tax Bill Prior Sale Owner Records
$146,250Jun 2015 $2,4732025 Amount on Record Feb 2010 2 Owners on Record Owner Occupied Assessor + 2 DocumentsUpdated Oct 2026

711 Armstrong Ave

3 bd · 2.5 ba · 2,694 sqft · built 2005 · 0.139 acres

Last Sale Tax Bill Prior Sale Owner Records
$349,000Dec 2020 $4,5692025 Amount on Record Nov 2009 Owner on Record Owner Occupied Assessor + 2 DocumentsUpdated Aug 2026

712 Armstrong Ave

3 bd · 1.5 ba · 852 sqft · built 1950 · 0.169 acres

Last Sale Tax Bill Prior Sale Owner Records
$238,400Jun 2025 $2,3502025 Amount on Record Jan 2022 Owner on Record Owner Occupied Assessor + 2 DocumentsUpdated Oct 2026

713 Armstrong Ave

4 bd · 2.5 ba · 2,481 sqft · built 2005 · 0.189 acres

Last Sale Tax Bill Prior Sale Owner Records
$302,302Jul 2005 $3,3702025 Amount on Record Nov 2003 2 Owners on Record Owner Occupied AssessorUpdated Sep 2026

716 Armstrong Ave

3 bd · 1 ba · 988 sqft · built 1940 · 0.169 acres

Last Sale Tax Bill Prior Sale Owner Records
$2,5702025 Owner on Record Assessor + 3 DocumentsUpdated Apr 2026

Property Records in Nearby Streets