New Castle County property record for 520 Harmony St, New Castle, DE 19720
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 1 ba · 1,939 sqft · built 1962 |
| Lot Size | 0.22 acres (9,583 sqft) |
| Owner | 2 Individual Names on Record |
| Tax Bill | $1,479 (2023) |
| Flood Zone | Zone AE (high risk) |
| APN | 21-015.10-036 |
| Primary APN | 21-015.10-036 |
|---|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 1 Bath |
| Plumbing Fixtures | 5 Plumbing Fixtures |
| Total Rooms | 6 Rooms |
| Stories | 1 Story |
| Building Area | 1,939 sqft Living Area |
| 1st Floor Area | 1,939 sqft |
| Flooring | Wood |
| Interior Walls | Wallboard/Drywall |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1962 |
|---|---|
| Effective Year Built | Effective 1962 |
| Architectural Style | Ranch |
| Exterior Material | Brick |
| Roof Type | Gable |
| Roof Material | Asphalt |
| Lot Area | 9,583 sqft (0.22 acres) |
| Lot Dimensions | 200 ft deep x 61 ft wide |
| Cooling System | Central |
|---|---|
| Heating System | Forced Air with A/C |
| Sewer | Connected |
| Street Address | 520 HARMONY ST |
|---|---|
| City | HISTORIC NEW CASTLE |
| State | DE |
| Zip | 19720-4551 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | 21R-2 |
| Legal Subdivision | NEW CASTLE |
| Jurisdiction | NEW CASTLE DE |
| Township / Civil Division | NEW CASTLE |
| Census Block Group | 2 |
| Census Block | 2014 |
| Census Tract | 16100 |
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.
Source: New Castle County records, as of May 6, 2026
Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.
| Owner of Record | 2 Individual Names on Record |
|---|---|
| Mailing Address | 520 HARMONY ST, HISTORIC NEW CASTLE, DE 19720-4551 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Transfer Date | Jul 11, 2011 |
| Transfer Doc | 0000034799 |
| 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 | Assessed Market Value |
|---|---|---|---|
| 2025 | $356,100 (+366.71%) Land $60,300 Building $295,800 | ||
| 2024 | $237,600 | ||
| 2023 | $1,479.00 | $76,300 (-) Land $13,700 Building $62,600 | |
| 2022 | $76,300 Land $13,700 Building $62,600 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
Source: FEMA National Flood Hazard Layer, effective January 21, 2026 · 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 | 8.0 ft |
| Flood Insurance Requirement | Required federally backed loans |
| Flood Insurance Cost | Premium on Record median of 61 individual policies |
| Community Rating System | Class 8 (10% premium discount) |
| Nearby Flood Policies | 71 units insured incl. 10 condo units |
| Nearby Flood Claims | 22 (1980–2020) |
| Claims Outside the SFHA | 6 of 22 |
| Most Recent Claim | Nov 2020 · rainfall accumulation |
| 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.
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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