New Castle County property record for 417 Williams St, New Castle, DE 19720
| Property Type | Single Family Home |
|---|---|
| Details | 2 bd · 1 ba |
| Lot Size | 0.13 acres (5,663 sqft) |
| Owner | Company Name on File |
| Flood Zone | Zone X (minimal risk) |
| APN | 21-015.30-070 |
| Primary APN | 21-015.30-070 |
|---|
| Bedrooms | 2 Beds |
|---|---|
| Full Baths | 1 Bath |
| Total Rooms | 4 Rooms |
| Architectural Style | Old Style |
|---|---|
| Lot Area | 5,663 sqft (0.13 acres) |
| Lot Dimensions | 75 ft deep x 76 ft wide |
| Sewer | Connected |
|---|
| Street Address | 417 WILLIAMS ST |
|---|---|
| City | NEW CASTLE |
| State | DE |
| Zip | 19720 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | 21HR |
| Legal Subdivision | NEW CASTLE |
| Jurisdiction | NEW CASTLE DE |
| Township / Civil Division | NEW CASTLE |
| Census Block Group | 1 |
| Census Block | 1006 |
| Census Tract | 16200 |
Source: NPS National Register of Historic Places, as of August 1, 2026
| Historic District | Within the New Castle Historic District listed 1984 · 463 contributing resources · NRIS 84000312 |
|---|
Federal listing alone does not restrict alterations; local historic district rules, which this data does not cover, may apply.
417 Williams St, a single family home, is owned by a company.
Source: New Castle County records, as of April 13, 2026
| Owner of Record | Company Name on File |
|---|---|
| Mailing Address | 419 WILLIAMS ST, HISTORIC NEW CASTLE, DE 19720-5066 |
| 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 |
|---|---|
| Record Updated | Jun 8, 2026 |
Source: New Castle County assessment roll, as of April 13, 2026
| Type | Name |
|---|---|
| State | Delaware |
| County | New Castle County |
| Municipality | New Castle City |
| Unified School District | Colonial School District (PK - 12) |
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2025 | $241,400 Land $129,000 Building $112,400 | |
| 2023 | Additional exemption filed | $22,000 Land $8,600 Building $13,400 |
Assessed value is set for property tax purposes and is not a market price estimate.
FEMA maps place 417 Williams St in Zone X, an area of minimal flood risk, within 500 ft of a high-risk flood zone.
Source: FEMA National Flood Hazard Layer, effective January 21, 2026 · OpenFEMA NFIP redacted claims and policies, as of September 2026
| FEMA Flood Zone | Zone X minimal risk |
|---|---|
| Nearest Special Flood Hazard Area | Zone AE, within 500 ft |
| Flood Insurance Requirement | Not required lenders may require it |
| Flood Insurance Cost | Premium on File median of 41 policies |
| Community Rating System | Class 8 (10% premium discount) |
| Nearby Flood Policies | 41 in force |
| Nearby Flood Claims | 4 (2012–2019) |
| Most Recent Claim | Jun 2019 · other causes |
| 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 417 Williams St 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 | MUNICIPAL SERVICES COMMISSION serves 5,549 people · EPA ID DE0000634 |
|---|---|
| Water Source | Groundwater |
| Last State Inspection | Apr 2025 |
| Lead | Under 1 ppb (2023–2025) action level 15 ppb |
| Water Quality | None last 10 years |
|---|---|
| Treatment and Procedure | None last 10 years |
| Monitoring and Reporting | None 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. The service area is an EPA estimate; the actual supplier may differ.
Source: FCC Broadband Data Collection, based on 588 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Verizon Fiber | 2,300 / 2,300 |
| Xfinity Cable | 2,000 / 250 |
| AT&T Fixed Wireless | 100 / 20 |
| T-Mobile Fixed Wireless | 100 / 20 |
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