901 Rosedale Ave, Wilmington, DE 19809 Property Records

New Castle County property record for 901 Rosedale Ave, Wilmington, DE 19809

Property Summary

Property Type	Commercial Office
Details	4,455 sqft · built 1959
Lot Size	0.24 acres (10,454 sqft)
Owner	Company Name on File
Flood Zone	Zone X (minimal risk)
APN	`17-002.00-129`

Property Details

APN / Parcel Number

Primary APN	`17-002.00-129`

Interior

Stories	1 Story
Building Area	4,455 sqft Gross Area
1st Floor Area	4,455 sqft

Exterior

Year Built	Built 1959
Effective Year Built	Effective 1959
Exterior Material	Brick
Construction Type	Concrete
Lot Area	10,454 sqft (0.24 acres)
Lot Dimensions	100 ft deep x 200 ft wide

Utilities, Heating & Cooling

Heating System	HVAC
Sewer	Connected

Location & Zoning

Street Address	901 ROSEDALE AVE
City	WILMINGTON
State	DE
Zip	19809-2652
Property Category	Commercial
Property Type	Commercial > Office > Commercial Office
Local Zoning Code	17R2
Legal Subdivision	MONTROSE ADDN
Legal Lot Number	1
Jurisdiction	NEW CASTLE DE
Township / Civil Division	BRANDYWINE
Census Block Group	2
Census Block	2023
Census Tract	10502

Owner

901 Rosedale Ave, a commercial property, is owned by a company.

Source: New Castle County records, as of April 13, 2026

Owner of Record	Company Name on File
Mailing Address	901 ROSEDALE AVE, WILMINGTON, DE 19809-2652
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.

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed Names	Name on Deed
Record Updated	Jun 8, 2026

Tax Assessment & Valuation

Source: New Castle County assessment roll, as of April 13, 2026

Property Jurisdictions

Type	Name
State	Delaware
County	New Castle County
Municipality	Bellefonte Town
Unified School District	Brandywine School District (PK - 12)

Tax Bill & Assessment History

Year	Tax Bill	Assessed Value
2025		$764,600 Land $258,000 Building $506,600
2023	Additional exemption filed	$172,100 Land $26,100 Building $146,000

Assessed value is set for property tax purposes and is not a market price estimate.

Flood

FEMA maps place 901 Rosedale Ave in Zone X, an area of minimal flood risk.

Source: FEMA National Flood Hazard Layer, effective January 21, 2026

FEMA Flood Zone	Zone X minimal risk
Flood Insurance Requirement	Not required lenders may require it

Values are read at the parcel center point; lenders make the official flood determination.

Wildfire

The area around 901 Rosedale Ave 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.

Drinking Water

Source: EPA Safe Drinking Water Information System, as of September 2026

Water System	VEOLIA WATER DELAWARE, INC private · serves 100,495 people · EPA ID DE0000564
Water Source	Surface water
Last State Inspection	Apr 2024
Lead	2 ppb (2021–2023) action level 15 ppb

Violations Reported to EPA

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.

Internet Providers

Source: FCC Broadband Data Collection, based on 546 locations within half a mile, as of December 31, 2025

Provider	Max Down / Up (Mbps)
Xfinity Cable	2,000 / 250
Verizon Fiber · Fixed Wireless in parts of the area	980 / 880
AT&T Fixed Wireless	100 / 20
T-Mobile Fixed Wireless	100 / 20