Chester County property record for 423 E Lancaster Ave, Downingtown, PA 19335
| Property Type | Duplex |
|---|---|
| Details | 5 bd · 3 ba · 2,938 sqft · built 1920 |
| Lot Size | 0.354 acres (15,403 sqft) |
| Owner | 2 Individual Names on Record |
| Tax Bill | $874 (2026) |
| Flood Zone | Zone X (minimal risk) |
| APN | 11-4-104 |
| Primary APN | 11-4-104 |
|---|---|
| Alternative APNs |
|
| Bedrooms | 5 Beds |
|---|---|
| Full Baths | 3 Baths |
| Total Rooms | 11 Rooms |
| Units | 3 Units |
| Stories | 2 Stories |
| Building Area | 2,938 sqft Living Area |
| Basement Area | 500 sqft |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1920 |
|---|---|
| Effective Year Built | Effective 1950 |
| Architectural Style | Old Style |
| Exterior Material | Brick |
| Construction Type | Brick |
| Lot Area | 15,403 sqft (0.354 acres) |
| View / Lot | Neighborhood |
| Garage Type | Detached |
| Garage Area | 500 sqft |
| Parking Spaces | 2 Parking Spaces |
| Heating System | Hot Water |
|---|---|
| Heating Fuel | Gas |
| Sewer | Municipal |
| Water Source | Commercial |
| Street Address | 423 E LANCASTER AVE |
|---|---|
| City | DOWNINGTOWN |
| State | PA |
| Zip | 19335-2777 |
| Property Category | Residential |
| Property Type | Residential > Multi-Unit > Duplex |
| Local Zoning Code | R4 |
| Legal Description | LOT APTS & GAR |
| Jurisdiction | CHESTER PA |
| Township / Civil Division | DOWNINGTOWN |
| Census Block Group | 1 |
| Census Block | 1020 |
| Census Tract | 304101 |
Source: NPS National Register of Historic Places, as of August 1, 2026
| Historic District | Within the East Lancaster Avenue Historic District listed 1979 · 122 contributing resources · NRIS 79002196 |
|---|
Federal listing alone does not restrict alterations; local historic district rules, which this data does not cover, may apply.
Source: Chester County records, as of May 28, 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 | 101 PLAZA DR, DOWNINGTOWN, PA 19335-5301 |
| Owner Type | Individual |
| Deed Names | 2 Names on Deed |
|---|---|
| Record Updated | Sep 20, 2026 |
Source: Chester County assessment roll, as of May 28, 2026
| Type | Name |
|---|---|
| State | Pennsylvania |
| County | Chester County |
| Municipality | Downingtown Borough |
| Unified School District | Downingtown Area School District (KG - 12) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2026 | $874.00 (-89.05%) | $191,210 (-) Land $44,420 Building $146,790 | $198,240 (-) Land $44,420 Building $153,820 |
| 2024 | $7,984.00 | $191,210 Land $44,420 Building $146,790 | |
| 1998 | $198,240 Land $44,420 Building $153,820 |
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 October 2, 2026 · OpenFEMA NFIP redacted claims and policies, as of September 2026
| FEMA Flood Zone | Zone X minimal risk |
|---|---|
| Flood Insurance Requirement | Not required lenders may require it |
| Nearby Flood Policies | 7 in force |
| Nearby Flood Claims | 9 (1983–2021) |
| Claims Outside the SFHA | 4 of 9 |
| 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.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Low lower than 98% of the US · lower than 98.3% of Pennsylvania |
|---|---|
| Wildfire Likelihood | Under 0.01% annual chance |
| Exposure | Direct burnable vegetation |
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 | DOWNINGTOWN WATER AUTHORITY serves 9,900 people · EPA ID PA1150026 |
|---|---|
| Water Source | Surface water |
| Last State Inspection | Dec 2024 |
| Lead | 2 ppb (2025) action level 15 ppb |
| Water Quality | None last 10 years |
|---|---|
| Treatment and Procedure | None last 10 years |
| Monitoring and Reporting | 22 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 320 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 |
| AT&T Fixed Wireless | 100 / 20 |
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