New Castle County property record for 604 Delaware St, New Castle, DE 19720
| Property Type | Duplex |
|---|---|
| Details | 5 bd · 1 ba · 1,960 sqft · built 1910 |
| Lot Size | 0.07 acres (3,049 sqft) |
| Owner | 2 Trust Names on File |
| Last Sale | $284,500 (Aug 2010) |
| Tax Bill | $2,333 (2025) |
| Deeds & Mortgages | Oct 2023 Transfer Feb 2018 Mortgage |
| Flood Zone | Zone X (moderate risk) |
| APN | 21-015.00-026 |
| Primary APN | 21-015.00-026 |
|---|
| Bedrooms | 5 Beds |
|---|---|
| Full Baths | 1 Bath |
| Plumbing Fixtures | 5 Plumbing Fixtures |
| Total Rooms | 9 Rooms |
| Stories | 2 Stories |
| Building Area | 1,960 sqft Living Area |
| 1st Floor Area | 1,048 sqft |
| Flooring | Wood |
| Interior Walls | Plaster |
| Year Built | Built 1910 |
|---|---|
| Effective Year Built | Effective 1978 |
| Architectural Style | Duplex Single |
| Exterior Material | Brick |
| Roof Type | Flat |
| Roof Material | Wood |
| Lot Area | 3,049 sqft (0.07 acres) |
| Lot Dimensions | 150 ft deep x 21 ft wide |
| Heating System | Hot Water |
|---|---|
| Sewer | Connected |
| Street Address | 604 DELAWARE ST |
|---|---|
| City | HISTORIC NEW CASTLE |
| State | DE |
| Zip | 19720-5058 |
| Property Category | Residential |
| Property Type | Residential > Multi-Unit > Duplex |
| Local Zoning Code | 21R-2 |
| Legal Description | BEG AT POINT IN SWLY RIGHT OF WAY OF DELAWARE ST 60 FT WIDE & LOCATED ALONG DELAWARE ST N 44 DEG 58 SECONDS 14 MINUTES W |
| Legal Subdivision | NEW CASTLE |
| Jurisdiction | NEW CASTLE DE |
| Township / Civil Division | NEW CASTLE |
| Census Block Group | 1 |
| Census Block | 1000 |
| 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.
604 Delaware St, a duplex, is owner-occupied and held in a trust since October 2023.
Source: New Castle County records, as of April 13, 2026
| Owner of Record | 2 Trust Names on File |
|---|---|
| Mailing Address | 604 DELAWARE ST, HISTORIC NEW CASTLE, DE 19720-5058 |
| Occupancy | Owner Occupied |
| Owner Type | Company |
| Vesting | Trust, Revocable Trust |
Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.
| Date | Document |
|---|---|
| Oct 10, 2023 | Intrafamily Transfer, Transfer |
| Feb 2, 2018 | Deed of Trust, Mortgage · FHA Mortgage JPMORGAN CHASE BANK NA |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Aug 30, 2010 · Amount on File |
| Deed Sale | Aug 30, 2010 · Amount on File |
| Prior Sale | Feb 5, 2003 · Amount on File |
| Deed Document Number | 201045104 |
| Last Transfer Date | Oct 2, 2023 |
| Transfer Doc | 0000067748 |
| Record Updated | Sep 20, 2026 |
| Document Type | Intrafamily Transfer |
|---|---|
| Jurisdiction | NEW CASTLE DE |
| Recording Date | Oct 10, 2023 |
| Property Address | 604 DELAWARE ST, HISTORIC NEW CASTLE, DE 19720-5058 |
| Document Number | 0000067748 |
| Instrument Date | Oct 2, 2023 |
| Instrument | 20231010-0067748 |
| Transaction Type | Transfer |
| Record Updated | Oct 19, 2023 |
| Tax | $0.00 |
|---|---|
| Amount Accuracy | No Consideration Stated |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Revocable Trust |
| Address | 604 DELAWARE ST, HISTORIC NEW CASTLE, DE 19720-5058 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | NEW CASTLE DE |
| Property Address | 604 DELAWARE ST, HISTORIC NEW CASTLE, DE 19720-5058 |
| Transaction Type | Mortgage |
| Record Updated | Sep 14, 2021 |
| Name | Verified Name |
|---|
| Document Number | 0000005507 |
|---|---|
| Date | Feb 2, 2018 |
| Instrument | 20180202-0005507 |
| Name | JPMORGAN CHASE BANK NA |
|---|---|
| Type | Bank |
| Address | COLUMBUS, OH 43240 |
| Type | FHA Mortgage |
|---|---|
| Amount | Amount on Record |
| Term | 360 Months |
| Due | Feb 1, 2048 |
The 2025 property tax bill for 604 Delaware St was $2,333.
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 | $2,333.00 | $420,100 Land $56,500 Building $363,600 |
| 2023 | $1,294.00 (-3.79%) | $49,900 (-) Land $6,400 Building $43,500 |
| 2022 | $1,345.00 | $49,900 Land $6,400 Building $43,500 |
Assessed value and assessed market value are set for property tax purposes, not market price estimates; both are a fraction of this property's market value.
FEMA maps place 604 Delaware St in Zone X, an area of moderate flood risk, within 100 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 moderate risk |
|---|---|
| 500-Year Floodplain | Yes 0.2% annual chance |
| Nearest Special Flood Hazard Area | Zone AE, within 100 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.
Wildfire risk around 604 Delaware St is low, with less than a 0.01% annual chance of wildfire.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Low lower than 99.8% of the US · lower than 99.1% of Delaware |
|---|---|
| Wildfire Likelihood | Under 0.01% annual chance |
| Exposure | None beyond 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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