Diamond Dr, Middletown, DE Property Records

New Castle County property records for 50 addresses on Diamond Dr, Middletown, DE · Last verified August 2026

Diamond Dr Highlights

Properties 50
Median Sale Price $426,000
Deeds and Mortgages on File 61
Median Price per Sqft $234
Owner Occupied 96%
Median Annual Tax Bill $3,392
Median Year Built 2000
Median Ownership Tenure 23 years

Properties on Diamond Dr

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

502 Diamond Dr

4 bd · 2.5 ba · 2,218 sqft · 0.48 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$329,900Apr 2005 $3,3002025 Amount on Record Jul 2001 2 Names on Record Owner Occupied Assessor + 1 DocumentUpdated May 2026

503 Diamond Dr

3 bd · 2.5 ba · 1,880 sqft · 0.45 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$168,903Aug 2001 $3,5782025 2 Names on Record Owner Occupied Assessor + 1 DocumentUpdated Apr 2026

504 Diamond Dr

4 bd · 2.5 ba · 1,894 sqft · 0.369 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$273,500Jul 2012 $3,4812025 Amount on Record Jun 2001 2 Names on Record Owner Occupied Assessor + 1 DocumentUpdated Apr 2026

505 Diamond Dr

4 bd · 2.5 ba · 1,818 sqft · 0.439 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$3,033,000May 2024 $3,2812025 Amount on Record Aug 2001 2 Names on Record Owner Occupied Assessor + 4 DocumentsUpdated Apr 2026

506 Diamond Dr

4 bd · 2.5 ba · 1,956 sqft · 0.36 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$295,000Jun 2011 $2,9712025 Amount on Record Aug 2001 2 Names on Record Owner Occupied Assessor + 3 DocumentsUpdated May 2026

507 Diamond Dr

4 bd · 2.5 ba · 2,240 sqft · 0.36 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$287,000Jul 2009 $3,4992025 Amount on Record Nov 2001 2 Names on Record Owner Occupied AssessorUpdated May 2026

508 Diamond Dr

4 bd · 2.5 ba · 2,382 sqft · 0.35 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$208,900Aug 2001 $3,2612025 2 Names on Record Owner Occupied Assessor + 2 DocumentsUpdated May 2026

509 Diamond Dr

4 bd · 2.5 ba · 1,818 sqft · 0.35 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$426,000Sep 2021 $3,4292025 Amount on Record Oct 2008 2 Names on Record Owner Occupied Assessor + 1 DocumentUpdated Apr 2026

510 Diamond Dr

4 bd · 2.5 ba · 1,894 sqft · 0.369 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$186,900Oct 2001 $3,5652025 2 Names on Record Owner Occupied Assessor + 1 DocumentUpdated May 2026

511 Diamond Dr

4 bd · 2.5 ba · 2,490 sqft · 0.36 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$204,900Jun 2001 2 Names on Record Owner Occupied AssessorUpdated May 2026

512 Diamond Dr

4 bd · 2.5 ba · 1,818 sqft · 0.369 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$194,046Dec 2001 $3,2392025 2 Names on Record Owner Occupied AssessorUpdated May 2026

513 Diamond Dr

4 bd · 2.5 ba · 2,490 sqft · 0.36 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$215,550Oct 2001 $3,1912025 2 Names on Record Owner Occupied Assessor + 1 DocumentUpdated May 2026

514 Diamond Dr

4 bd · 2.5 ba · 1,935 sqft · 0.369 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$184,590May 2001 2 Names on Record Owner Occupied AssessorUpdated May 2026

515 Diamond Dr

4 bd · 2.5 ba · 2,218 sqft · 0.36 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$550,000Jul 2022 $3,3662025 —Jul 2022 2 Names on Record Owner Occupied Assessor + 1 DocumentUpdated Apr 2026

516 Diamond Dr

4 bd · 2.5 ba · 1,818 sqft · 0.369 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
—May 2019 $3,2822025 Amount on Record Jun 2007 2 Names on Record Owner Occupied Assessor + 3 DocumentsUpdated May 2026

517 Diamond Dr

4 bd · 2.5 ba · 2,490 sqft · 0.36 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$210,550May 2001 $2,3502025 2 Names on Record Owner Occupied AssessorUpdated May 2026

518 Diamond Dr

4 bd · 2.5 ba · 2,222 sqft · 0.369 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$275,000Mar 2012 $3,3582025 Amount on Record Aug 2001 1 Name on Record Owner Occupied Assessor + 5 DocumentsUpdated Jul 2026

519 Diamond Dr

4 bd · 2.5 ba · 1,894 sqft · 0.36 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$189,900Oct 2001 $3,6622025 2 Names on Record Owner Occupied Assessor + 1 DocumentUpdated May 2026

520 Diamond Dr

4 bd · 2.5 ba · 1,894 sqft · 0.369 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$270,000Sep 2003 $3,3812025 2 Names on Record Owner Occupied AssessorUpdated May 2026

521 Diamond Dr

4 bd · 2.5 ba · 2,490 sqft · 0.36 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$204,900Jul 2000 $3,6192025 2 Names on Record Owner Occupied Assessor + 2 DocumentsUpdated May 2026

522 Diamond Dr

4 bd · 2.5 ba · 1,818 sqft · 0.369 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$177,900Oct 2000 $2,6402025 2 Names on Record Owner Occupied Assessor + 1 DocumentUpdated Apr 2026

523 Diamond Dr

4 bd · 2.5 ba · 2,490 sqft · 0.36 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$255,000Apr 2003 Amount on Record Apr 2002 2 Names on Record Owner Occupied AssessorUpdated Apr 2026

524 Diamond Dr

4 bd · 2.5 ba · 2,280 sqft · 0.369 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$182,900Sep 2001 $3,4862025 2 Names on Record Owner Occupied Assessor + 2 DocumentsUpdated May 2026

525 Diamond Dr

4 bd · 2.5 ba · 2,092 sqft · 0.41 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$197,700May 2000 $3,3212025 2 Names on Record Owner Occupied Assessor + 1 DocumentUpdated May 2026

527 Diamond Dr

4 bd · 2.5 ba · 1,818 sqft · 0.539 acres · Garage

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

528 Diamond Dr

4 bd · 2.5 ba · 2,490 sqft · 0.41 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$100,000Apr 2014 1 Name on Record Owner Occupied AssessorUpdated May 2026

529 Diamond Dr

4 bd · 2.5 ba · 2,490 sqft · 0.539 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$206,200Mar 2000 $3,6192025 2 Names on Record Owner Occupied Assessor + 1 DocumentUpdated May 2026

531 Diamond Dr

4 bd · 3 ba · 1,818 sqft · 0.36 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$345,000Jun 2006 $3,3922025 2 Names on Record Owner Occupied Assessor + 1 DocumentUpdated May 2026

532 Diamond Dr

4 bd · 2.5 ba · 2,490 sqft · 0.38 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$275,000Feb 2011 $3,5782025 2 Names on Record Owner Occupied Assessor + 1 DocumentUpdated May 2026

533 Diamond Dr

4 bd · 2.5 ba · 2,754 sqft · 0.36 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$205,200Dec 1999 1 Name on Record Owner Occupied AssessorUpdated May 2026

534 Diamond Dr

4 bd · 2.5 ba · 2,490 sqft · 0.41 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$3,8152025 2 Names on Record Owner Occupied Assessor + 2 DocumentsUpdated May 2026

535 Diamond Dr

4 bd · 2.5 ba · 2,459 sqft · 0.38 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$3,5702025 2 Names on Record AssessorUpdated Apr 2026

537 Diamond Dr

0.4 acres

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

539 Diamond Dr

4 bd · 2.5 ba · 2,459 sqft · 0.419 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$323,000Oct 2011 $3,6062025 Amount on Record Apr 2004 2 Names on Record Owner Occupied Assessor + 1 DocumentUpdated Apr 2026

541 Diamond Dr

4 bd · 2.5 ba · 1,818 sqft · 0.289 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$490,000Jun 2026 $3,2022025 Amount on Record Nov 2025 1 Name on Record Owner Occupied Assessor + 2 DocumentsUpdated Jun 2026

542 Diamond Dr

4 bd · 2.5 ba · 2,490 sqft · 0.45 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
—Jun 2019 $3,5672025 Amount on Record Aug 2000 2 Names on Record Owner Occupied Assessor + 4 DocumentsUpdated Jul 2026

543 Diamond Dr

4 bd · 2.5 ba · 2,092 sqft · 0.289 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$188,900Nov 2000 $3,4952025 2 Names on Record Owner Occupied Assessor + 2 DocumentsUpdated May 2026

544 Diamond Dr

4 bd · 2.5 ba · 2,490 sqft · 0.43 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$320,000Jun 2010 $3,5202025 Amount on Record Dec 2002 2 Names on Record Owner Occupied Assessor + 1 DocumentUpdated May 2026

545 Diamond Dr

4 bd · 2.5 ba · 2,218 sqft · 0.289 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
—Sep 2014 $3,1902025 2 Names on Record Owner Occupied Assessor + 1 DocumentUpdated Apr 2026

546 Diamond Dr

4 bd · 2.5 ba · 2,490 sqft · 0.41 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$208,200Aug 2000 2 Names on Record Owner Occupied Assessor + 1 DocumentUpdated May 2026

547 Diamond Dr

4 bd · 2.5 ba · 2,092 sqft · 0.28 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$275,000Aug 2012 $3,2312025 Amount on Record May 2001 2 Names on Record Owner Occupied AssessorUpdated May 2026

548 Diamond Dr

4 bd · 2.5 ba · 1,966 sqft · 0.33 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$354,900Sep 2006 $3,5662025 1 Name on Record Owner Occupied AssessorUpdated Aug 2026

549 Diamond Dr

4 bd · 2.5 ba · 1,818 sqft · 0.269 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$191,370Jul 2001 $3,1552025 2 Names on Record Owner Occupied Assessor + 2 DocumentsUpdated May 2026

550 Diamond Dr

3 bd · 2 ba · 1,698 sqft · 0.36 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$184,750Mar 2001 $2,8502025 1 Name on Record Owner Occupied Assessor + 3 DocumentsUpdated Jun 2026

551 Diamond Dr

3 bd · 2.5 ba · 1,880 sqft · 0.319 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$200,000Jan 2003 $3,0752025 Amount on Record Apr 2001 2 Names on Record Owner Occupied AssessorUpdated May 2026

552 Diamond Dr

4 bd · 2.5 ba · 2,218 sqft · 0.38 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$3,2562025 1 Name on Record Owner Occupied Assessor + 1 DocumentUpdated Aug 2026

553 Diamond Dr

4 bd · 2.5 ba · 1,818 sqft · 0.36 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$178,600Nov 2000 2 Names on Record Owner Occupied AssessorUpdated May 2026

554 Diamond Dr

4 bd · 2.5 ba · 2,490 sqft · 0.58 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$247,500May 2003 $3,7012025 1 Name on Record Owner Occupied Assessor + 1 DocumentUpdated May 2026

555 Diamond Dr

4 bd · 2.5 ba · 2,490 sqft · 0.61 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$382,500Mar 2007 $3,9332025 2 Names on Record Owner Occupied Assessor + 3 DocumentsUpdated May 2026

556 Diamond Dr

4 bd · 2.5 ba · 1,818 sqft · 0.35 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$186,900Feb 2001 2 Names on Record Owner Occupied Assessor + 2 DocumentsUpdated Aug 2026

Wildfire Risk on Diamond Dr

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

Wildfire RiskLow
this street's cells rank at the 3rd percentile of exposed land nationally · 12th in Delaware
Wildfire LikelihoodLow — less than 1 in 10,000 per year
ExposureDirect
1 of 4 cells directly exposed · 4 adjoin burnable vegetation

Property Records in Nearby Streets