Delaware County property record for 644 Keystone Ave, Darby, PA 19023
| Property Type | Vacant Land |
|---|---|
| Details | 2 bd · 1 ba · 728 sqft · built 1920 |
| Lot Size | 0.14 acres (615 sqft) |
| Owner | Company Name on File |
| Last Sale | $31,200 (Jul 2000) |
| Tax Bill | $340 (2026) |
| Flood Zone | Zone AE (high risk) |
| APN | 12-02-031:000 |
| Primary APN | 12-02-031:000 |
|---|---|
| Alternative APN |
|
| Bedrooms | 2 Beds |
|---|---|
| Full Baths | 1 Bath |
| Total Rooms | 5 Rooms |
| Stories | 2 Stories |
| Building Area | 728 sqft Living Area |
| Year Built | Built 1920 |
|---|---|
| Effective Year Built | Effective 1920 |
| Architectural Style | Row Home |
| Exterior Material | Brick |
| Lot Area | 615 sqft (0.14 acres) |
| Lot Dimensions | 41 ft deep x 15 ft wide |
| Heating System | Central |
|---|---|
| Heating Fuel | Gas |
| Sewer | Municipal |
| Water Source | Commercial |
| Account Number | 1202031000 |
|---|---|
| Street Address | 644 KEYSTONE AVE |
| City | DARBY |
| State | PA |
| Zip | 19023-2415 |
| Property Category | Vacant Land |
| Property Type | Vacant Land > Uncategorized |
| Legal Description | 2 STY HSE 15X41 |
| Legal Subdivision | PLAN OF PROPERTY FOR ROY J GOTSHALL |
| Legal Block | 20 |
| Jurisdiction | DELAWARE PA |
| Township / Civil Division | COLWYN |
| Census Block Group | 2 |
| Census Block | 2007 |
| Census Tract | 402700 |
644 Keystone Ave, vacant land, is owned by a company that bought it in July 2000.
Source: Delaware County records, as of May 28, 2026
| Owner of Record | Company Name on File |
|---|---|
| Mailing Address | 3RD & SPRUCE STS, COLWYN, PA 19023 |
| Owner Type | Company |
Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.
| Deed Names | Name on Deed |
|---|---|
| Last Sale | Jul 14, 2000 · Amount on File |
| Deed Sale | Jul 14, 2000 · Amount on File |
| Prior Sale | Nov 9, 1995 · Amount on File |
| Deed Document Number | 200044180 |
| Deed Book / Page | 2037 / 1238 |
| Prior Transfer Date | Jun 15, 1998 |
| Prior Transfer Doc | 0000042107 |
| Record Updated | Oct 29, 2026 |
The 2026 property tax bill for 644 Keystone Ave was $340.
Source: Delaware County assessment roll, as of May 28, 2026
| Type | Name |
|---|---|
| State | Pennsylvania |
| County | Delaware County |
| Municipality | Colwyn Borough |
| Unified School District | William Penn School District (KG - 12) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2026 | $340.00 | $9,260 Land $9,260 | $9,260 Land $9,260 |
| 2024 | $9,260 Land $9,260 | ||
| 2023 | $457.00 Additional exemption filed | ||
| 2021 | $9,260 (-) | ||
| 2020 | $9,260 |
Assessed value is set for property tax purposes, not a market price estimate; it is a fraction of this property's market value.
FEMA maps place 644 Keystone Ave in Zone AE, a high-risk flood area; flood insurance is required for federally backed loans.
Source: FEMA National Flood Hazard Layer, effective September 30, 2023 · OpenFEMA NFIP redacted claims and policies, as of September 2026
| FEMA Flood Zone | Zone AE high risk |
|---|---|
| 100-Year Floodplain | Yes 1% annual chance |
| Floodway | No |
| Base Flood Elevation | Varies along the reach; see FIRM |
| Flood Insurance Requirement | Required federally backed loans |
| Flood Insurance Cost | Premium on File median of 13 policies |
| Nearby Flood Policies | 13 in force |
| Nearby Flood Claims | 101 (1981–2021) |
| Claims Outside the SFHA | 6 of 101 |
| Most Recent Claim | Sep 2021 · Remnants Of Hurricane Ida |
| Claims by Event |
|
Values are read at the parcel center point; flood claims are located to the census block group, not this parcel; lenders make the official flood determination.
The area around 644 Keystone Ave has no burnable land within ember reach, so its wildfire risk is not rated.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Not rated no burnable land within ember reach |
|---|
Values cover an area roughly 900 ft across, not the parcel itself; insurers use their own ratings.
Source: EPA Safe Drinking Water Information System, as of September 2026
| Water System | AQUA PA MAIN SYSTEM private · serves 822,600 people · EPA ID PA1460073 |
|---|---|
| Water Source | Surface water |
| Last State Inspection | Mar 2025 |
| Lead | Under 1 ppb (2025) action level 15 ppb |
| Water Quality | Treatment failure resolved · Nov 2024 E. coli resolved · Jul 2017 |
|---|---|
| Treatment and Procedure | None last 10 years |
| Monitoring and Reporting | 27 last 3 years |
Results are for the whole water system, not water tested at this address; lead at the tap also depends on the building's own pipes.
Source: FCC Broadband Data Collection, based on 1,112 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Verizon Fiber · Fixed Wireless in parts of the area | 2,300 / 2,300 |
| Xfinity Cable | 2,000 / 250 |
| Astound Broadband Cable | 1,500 / 50 |
| T-Mobile Fixed Wireless | 100 / 20 |
| AT&T Fixed Wireless | 100 / 20 |
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