Keystone Ave, Darby, PA Property Records

Delaware County property records for 43 addresses on Keystone Ave, Darby, PA · Last verified August 2026

Keystone Ave Highlights

Properties 43
Median Sale Price $40,000
Deeds and Mortgages on File 42
Median Price per Sqft $54
Owner Occupied 40%
Median Annual Tax Bill $1,846
Median Year Built 1920
Median Ownership Tenure 7 years

Properties on Keystone Ave

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

512 Keystone Ave

2 bd · 1 ba · 724 sqft · built 1920 · 0.017 acres

Last Sale Tax Bill Prior Sale Owner Records
$2,791Jul 2013 $1,2602026 Amount on Record Jul 2004 2 Names on Record Assessor + 1 DocumentUpdated Jul 2026

514 Keystone Ave

2 bd · 1 ba · 724 sqft · built 1910 · 0.017 acres

Last Sale Tax Bill Prior Sale Owner Records
$63,000Apr 2022 $1,4572026 Amount on Record Nov 2005 1 Name on Record Assessor + 2 DocumentsUpdated Jun 2026

516 Keystone Ave

2 bd · 1 ba · 724 sqft · built 1910 · 0.017 acres

Last Sale Tax Bill Prior Sale Owner Records
$29,334Jun 2021 $1,4582026 Amount on Record Oct 2012 1 Name on Record Assessor + 1 DocumentUpdated Jul 2026

518 Keystone Ave

2 bd · 1 ba · 724 sqft · built 1910 · 0.016 acres

Last Sale Tax Bill Prior Sale Owner Records
$45,000Jun 2022 $1,3972026 Amount on Record Mar 2021 1 Name on Record Assessor + 2 DocumentsUpdated Jun 2026

520 Keystone Ave

2 bd · 1 ba · 724 sqft · built 1910 · 0.017 acres

Last Sale Tax Bill Prior Sale Owner Records
$5,261Jul 2014 $1,2332026 1 Name on Record AssessorUpdated Aug 2026

522 Keystone Ave

2 bd · 1 ba · 728 sqft · built 1920 · 0.021 acres

Last Sale Tax Bill Prior Sale Owner Records
$45,000Nov 2023 $8442026 Amount on Record Aug 1980 1 Name on Record AssessorUpdated Jun 2026

524 Keystone Ave

2 bd · 1 ba · 728 sqft · built 1920 · 0.017 acres

Last Sale Tax Bill Prior Sale Owner Records
$3,142May 2022 $1,8482026 —Feb 1970 1 Name on Record Assessor + 1 DocumentUpdated Jul 2026

526 Keystone Ave

2 bd · 1 ba · 728 sqft · built 1920 · 0.014 acres

Last Sale Tax Bill Prior Sale Owner Records
$10,000Jul 2026 $1,8622026 —Feb 1970 1 Name on Record Assessor + 2 DocumentsUpdated Aug 2026

528 Keystone Ave

2 bd · 1 ba · 728 sqft · built 1920 · 0.017 acres

Last Sale Tax Bill Prior Sale Owner Records
—Feb 1970 $1,8482026 1 Name on Record Assessor + 1 DocumentUpdated Jul 2026

530 Keystone Ave

2 bd · 1 ba · 728 sqft · built 1920 · 0.014 acres

Last Sale Tax Bill Prior Sale Owner Records
$12,972Jul 2019 $1,8462026 —Feb 1970 1 Name on Record Assessor + 1 DocumentUpdated Jul 2026

532 Keystone Ave

2 bd · 1 ba · 728 sqft · built 1920 · 0.017 acres

Last Sale Tax Bill Prior Sale Owner Records
$16,972Jul 2019 $1,8482026 —Feb 1970 1 Name on Record Assessor + 1 DocumentUpdated Jul 2026

534 Keystone Ave

2 bd · 1 ba · 728 sqft · built 1920 · 0.016 acres

Last Sale Tax Bill Prior Sale Owner Records
$10,000Mar 2026 $1,8462026 —Feb 1970 1 Name on Record Assessor + 2 DocumentsUpdated Jun 2026

536 Keystone Ave

2 bd · 1 ba · 728 sqft · built 1920 · 0.014 acres

Last Sale Tax Bill Prior Sale Owner Records
$20,972Jul 2019 $1,8462026 —Feb 1970 1 Name on Record Assessor + 1 DocumentUpdated Jul 2026

538 Keystone Ave

2 bd · 1 ba · 728 sqft · built 1920 · 0.017 acres

Last Sale Tax Bill Prior Sale Owner Records
$5,000Apr 2023 $1,8482026 —Feb 1970 1 Name on Record Assessor + 2 DocumentsUpdated Jul 2026

540 Keystone Ave

3 bd · 1 ba · 728 sqft · built 1920 · 0.017 acres

Last Sale Tax Bill Prior Sale Owner Records
$20,972Jul 2019 $1,8472026 —Jan 1977 1 Name on Record Assessor + 1 DocumentUpdated Jul 2026

542 Keystone Ave

2 bd · 1 ba · 728 sqft · built 1920 · 0.019 acres

Last Sale Tax Bill Prior Sale Owner Records
$65,000Oct 2025 $1,8492026 Amount on Record Jul 2025 1 Name on Record Owner Occupied Assessor + 2 DocumentsUpdated Jun 2026

544 Keystone Ave

2 bd · 1 ba · 728 sqft · built 1920 · 0.019 acres

Last Sale Tax Bill Prior Sale Owner Records
$30,000Jul 2024 $1,4692026 Amount on Record Oct 1986 1 Name on Record Owner Occupied AssessorUpdated Jul 2026

546 Keystone Ave

2 bd · 1 ba · 728 sqft · built 1920 · 0.019 acres

Last Sale Tax Bill Prior Sale Owner Records
$85,000Jan 2024 $1,8662026 Amount on Record Feb 2023 1 Name on Record Assessor + 3 DocumentsUpdated Jul 2026

548 Keystone Ave

2 bd · 1 ba · 728 sqft · built 1920 · 0.021 acres

Last Sale Tax Bill Prior Sale Owner Records
$3,000Jul 1982 $1,8502026 1 Name on Record Owner Occupied Assessor + 1 DocumentUpdated Jun 2026

600 Keystone Ave

2 bd · 1 ba · 728 sqft · built 1920 · 0.021 acres

Last Sale Tax Bill Prior Sale Owner Records
$43,000Nov 2022 $1,8512026 Amount on Record Sep 2022 1 Name on Record Assessor + 3 DocumentsUpdated Jul 2026

602 Keystone Ave

2 bd · 1 ba · 728 sqft · built 1920 · 0.021 acres

Last Sale Tax Bill Prior Sale Owner Records
$55,500Sep 2023 $1,8522026 Amount on Record Mar 2023 1 Name on Record Assessor + 3 DocumentsUpdated Aug 2026

604 Keystone Ave

2 bd · 1 ba · 728 sqft · built 1920 · 0.023 acres

Last Sale Tax Bill Prior Sale Owner Records
$28,750Mar 2021 $1,8532026 Amount on Record Jul 2016 1 Name on Record Assessor + 2 DocumentsUpdated Jun 2026

606 Keystone Ave

2 bd · 1 ba · 728 sqft · built 1920 · 0.025 acres

Last Sale Tax Bill Prior Sale Owner Records
$30,000Jan 2024 $1,7672026 Amount on Record Feb 2020 1 Name on Record Owner Occupied Assessor + 2 DocumentsUpdated Jun 2026

608 Keystone Ave

2 bd · 1 ba · 728 sqft · built 1920 · 0.025 acres

Last Sale Tax Bill Prior Sale Owner Records
$18,000Oct 2005 $1,8542026 Amount on Record May 1997 2 Names on Record AssessorUpdated Jul 2026

610 Keystone Ave

2 bd · 1 ba · 728 sqft · built 1920 · 0.026 acres

Last Sale Tax Bill Prior Sale Owner Records
$40,000Nov 2021 $1,8552026 Amount on Record Sep 2015 1 Name on Record Assessor + 1 DocumentUpdated Jun 2026

612 Keystone Ave

2 bd · 1 ba · 728 sqft · built 1920 · 0.026 acres

Last Sale Tax Bill Prior Sale Owner Records
—Oct 1976 $1,8552026 1 Name on Record Owner Occupied Assessor + 1 DocumentUpdated Jul 2026

614 Keystone Ave

2 bd · 1 ba · 728 sqft · built 1920 · 0.026 acres

Last Sale Tax Bill Prior Sale Owner Records
—Oct 1976 $1,3982026 1 Name on Record Assessor + 1 DocumentUpdated Jul 2026

616 Keystone Ave

2 bd · 1 ba · 728 sqft · built 1920 · 0.026 acres

Last Sale Tax Bill Prior Sale Owner Records
—Oct 1976 $1,8562026 1 Name on Record Owner Occupied Assessor + 1 DocumentUpdated Jun 2026

618 Keystone Ave

2 bd · 1 ba · 728 sqft · built 1920 · 0.03 acres

Last Sale Tax Bill Prior Sale Owner Records
—Oct 1976 $1,8582026 1 Name on Record Assessor + 1 DocumentUpdated Jul 2026

620 Keystone Ave

2 bd · 1 ba · 728 sqft · built 1920 · 0.028 acres

Last Sale Tax Bill Prior Sale Owner Records
$11,977Aug 2019 $1,8572026 —Oct 1976 1 Name on Record Assessor + 1 DocumentUpdated Jul 2026

622 Keystone Ave

2 bd · 1 ba · 728 sqft · built 1920 · 0.03 acres

Last Sale Tax Bill Prior Sale Owner Records
—Oct 1976 $1,4012026 1 Name on Record Assessor + 1 DocumentUpdated Jul 2026

624 Keystone Ave

2 bd · 1 ba · 728 sqft · built 1920 · 0.03 acres

Last Sale Tax Bill Prior Sale Owner Records
—Oct 1976 $1,8592026 1 Name on Record Assessor + 1 DocumentUpdated Jun 2026

626 Keystone Ave

2 bd · 1 ba · 728 sqft · built 1920 · 0.014 acres

Last Sale Tax Bill Prior Sale Owner Records
$30,680Jul 2000 $3402026 1 Name on Record Owner Occupied AssessorUpdated Jun 2026

628 Keystone Ave

2 bd · 1 ba · 728 sqft · built 1920 · 0.014 acres

Last Sale Tax Bill Prior Sale Owner Records
$30,640Jul 2000 $3392026 1 Name on Record Owner Occupied AssessorUpdated Jun 2026

632 Keystone Ave

2 bd · 1 ba · 728 sqft · built 1920 · 0.014 acres

Last Sale Tax Bill Prior Sale Owner Records
$3402026 1 Name on Record Owner Occupied AssessorUpdated Jun 2026

634 Keystone Ave

2 bd · 1 ba · 728 sqft · built 1920 · 0.014 acres

Last Sale Tax Bill Prior Sale Owner Records
$30,650Jul 2000 $3392026 1 Name on Record Owner Occupied AssessorUpdated Jun 2026

636 Keystone Ave

2 bd · 1 ba · 728 sqft · built 1920 · 0.015 acres

Last Sale Tax Bill Prior Sale Owner Records
$30,670Jul 2000 $3402026 1 Name on Record Owner Occupied AssessorUpdated Jun 2026

638 Keystone Ave

2 bd · 1 ba · 728 sqft · built 1920 · 0.014 acres

Last Sale Tax Bill Prior Sale Owner Records
$31,100Jul 2000 $3392026 Amount on Record Jun 1997 1 Name on Record Owner Occupied AssessorUpdated Jun 2026

640 Keystone Ave

2 bd · 1 ba · 728 sqft · built 1920 · 0.014 acres

Last Sale Tax Bill Prior Sale Owner Records
$30,640Jul 2000 $3392026 1 Name on Record Owner Occupied AssessorUpdated Jun 2026

642 Keystone Ave

2 bd · 1 ba · 728 sqft · built 1920 · 0.014 acres

Last Sale Tax Bill Prior Sale Owner Records
$31,100Jul 2000 $3392026 1 Name on Record Owner Occupied AssessorUpdated Jun 2026

644 Keystone Ave

2 bd · 1 ba · 728 sqft · built 1920 · 0.014 acres

Last Sale Tax Bill Prior Sale Owner Records
$31,200Jul 2000 $3402026 Amount on Record Nov 1995 1 Name on Record Owner Occupied AssessorUpdated Jun 2026

646 Keystone Ave

2 bd · 1 ba · 728 sqft · built 1920 · 0.014 acres

Last Sale Tax Bill Prior Sale Owner Records
$30,680Jul 2000 $3402026 1 Name on Record Owner Occupied AssessorUpdated Jun 2026

648 Keystone Ave

2 bd · 1 ba · 736 sqft · built 1920 · 0.017 acres

Last Sale Tax Bill Prior Sale Owner Records
$31,210Jul 2000 $4352026 1 Name on Record Owner Occupied AssessorUpdated Jun 2026

Wildfire Risk on Keystone Ave

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

Wildfire RiskNot rated
no burnable land in reach
Wildfire LikelihoodNegligible
ExposureNone
beyond ember reach

Property Records in Nearby Streets