New Castle County property record for 421 Single Ave, New Castle, DE 19720 · Last verified May 2026
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 1 ba · 1,008 sqft · built 1947 |
| Lot Size | 0.12 acres (5,227 sqft) |
| Owner | 2 Individual Names on File |
| Tax Bill | $1,702 (2025) |
| Deeds & Mortgages | Jul 2021 Mortgage |
| Flood Zone | Zone X (minimal risk) |
| APN | 10-020.20-186 |
| Primary APN | 10-020.20-186 |
|---|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 1 Bath |
| Plumbing Fixtures | 5 Plumbing Fixtures |
| Total Rooms | 6 Rooms |
| Stories | 1 Story |
| Building Area | 1,008 sqft Living Area |
| 1st Floor Area | 1,008 sqft |
| Flooring | Wood |
| Interior Walls | Plaster |
| Year Built | Built 1947 |
|---|---|
| Effective Year Built | Effective 1947 |
| Architectural Style | Ranch |
| Exterior Material | Stucco |
| Roof Type | Gable |
| Roof Material | Asphalt |
| Lot Area | 5,227 sqft (0.12 acres) |
| Lot Dimensions | 100 ft deep x 50 ft wide |
| Cooling System | Central |
|---|---|
| Heating System | Hot Water |
| Sewer | Connected |
| Street Address | 421 SINGLE AVE |
|---|---|
| City | NEW CASTLE |
| State | DE |
| Zip | 19720-2775 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Subdivision | COLLINS PARK ADDN |
| Legal Block | K |
| Legal Lot Number | 225 |
| Jurisdiction | NEW CASTLE DE |
| Township / Civil Division | NEW CASTLE |
| Census Block Group | 1 |
| Census Block | 1014 |
| Census Tract | 15802 |
Source: New Castle County records · APN 10-020.20-186
Assessment roll updated April 13, 2026 · Last verified May 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 File |
|---|---|
| Mailing Address | 421 SINGLE AVE, NEW CASTLE, DE 19720-2775 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Deed Names | 2 Verified Names on Deed |
|---|---|
| Last Transfer Date | Apr 10, 2001 |
| Transfer Doc | 0000027183 |
| Record Updated | Jun 08, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | NEW CASTLE DE |
| Property Address | 421 SINGLE AVE, NEW CASTLE, DE 19720-2775 |
| Transaction Type | Mortgage |
| Record Updated | Jul 14, 2021 |
| Name | Verified Name |
|---|---|
| Address | 421 SINGLE AVE, NEW CASTLE, DE 19720-2775 |
| Document Number | 0000077823 |
|---|---|
| Date | Jul 06, 2021 |
| Instrument | 20210706-0077823 |
| Name | WILMINGTON SAVINGS FUND SOCIETY FSB |
|---|---|
| Type | Bank |
| Address | WILMINGTON, DE 19801 |
| Amount | Amount Recorded |
|---|
Source: New Castle County records · Assessment roll updated April 13, 2026 · Last verified May 2026
| Type | Name |
|---|---|
| State | Delaware |
| County | New Castle County |
| Unified School District | Colonial School District (PK - 12) |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2025 | $1,702.00 (+87.44%) | $254,500 (+774.57%) Land $48,800 Building $205,700 | |
| 2024 | $150,300 | ||
| 2023 | $908.00 | $29,100 Land $5,300 Building $23,800 |
Source: FEMA National Flood Hazard Layer, New Castle County (10003C), updated January 21, 2026 · USDA Forest Service Wildfire Risk to Communities, 2nd edition (2024), fuels as of 2020 · Last verified October 2026
| FEMA Flood Zone | Zone X |
|---|---|
| Flood Hazard | Minimal |
| 500-Year Floodplain | No |
| Special Flood Hazard Area | No |
| Nearest Special Flood Hazard Area | Zone AE, within 500 ft |
| Wildfire Risk | Low above 3% of the US · above 12% of Delaware |
|---|---|
| Wildfire Likelihood | Less than 1 in 10,000 per year |
| Exposure | Direct burnable vegetation at the parcel |
Values are read at the parcel center point; lenders make the official flood determination.
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