This listing is brimming with potential. Nearly 20 acres in the serene countryside of Bear, DE, this mixed use property offers a perfect blend of tranquility and convenience. Middletown and Newark, DE, including the University of Delaware; Cecil County (Elkton, MD); Kent County, and even Delaware beaches are accessible. Located just minutes from major highways (I-95, Rte 1, Rte 7, Rte 40 and Rte 896), shopping centers, and schools, it offers the ideal location for both privacy and accessibility. Reach the Philadelphia International airport within an hour and BWI airport in MD under 2 hours. Explore the possibilities of building your own home(s), a small subdivision, or restart a farm, etc. Three parcels are sold together with all existing homes included in the sale. Option to allow a paintball company to operate as an agricultural tourism use.
Single-familyProperty Type
1997Year Built
18.41 acresLot Size
$585Price/Sq.Ft.
2 car garageParking
Listed by VIVIAN SPAHR• Century 21 Gold Key Realty
This listing is brimming with potential. Nearly 20 acres in the serene countryside of Bear, DE, this mixed use property offers a perfect blend of tranquility and convenience. Middletown and Newark, DE, including the University of Delaware; Cecil County (Elkton, MD); Kent County, and even Delaware beaches are accessible. Located just minutes from major highways (I-95, Rte 1, Rte 7, Rte 40 and Rte 896), shopping centers, and schools, it offers the ideal location for both privacy and accessibility. Reach the Philadelphia International airport within an hour and BWI airport in MD under 2 hours. Explore the possibilities of building your own home(s), a small subdivision, or restart a farm, etc. Three parcels are sold together with all existing homes included in the sale. Option to allow a paintball company to operate as an agricultural tourism use.
Year
Property tax
Land + Additions
Assessment*
2025
$2,298 (+1.1%)
$132,200 + $233,200
$365,400
2024
$2,273 (+24.1%)
$132,200 + $233,200
$365,400
2023
$1,831 (−0.3%)
$15,000 + $57,600
$72,600
2022
$1,837 (−3.5%)
$15,000 + $57,600
$72,600
2021
$1,904 (+1.5%)
$15,000 + $57,600
$72,600
2020
$1,875 (+11.0%)
$15,000 + $57,600
$72,600
2019
$1,688 (+4.5%)
$15,000 + $57,600
$72,600
2018
$1,615 (−25.5%)
$15,000 + $57,600
$72,600
2017
$2,167 (+9.4%)
$15,000 + $57,600
$72,600
2016
$1,980 (+2.9%)
$15,000 + $57,600
$72,600
2015
$1,925 (+0.2%)
$15,000 + $57,600
$72,600
2014
$1,921 (+0.7%)
$15,000 + $57,600
$72,600
2013
$1,908 (+6.0%)
$15,000 + $57,600
$72,600
2012
$1,800
$15,000 + $57,600
$72,600
Public record
Beds
2
Baths
1
Stories
1.5
Lot width
245 ft.
Lot depth
180 ft.
Lot size
1.01 Acres
Year renovated
—
Finished Sq. Ft.
2,050
Unfinished Sq. Ft.
—
Total Sq. Ft.
2,050
Year built
1997
Style
Single Family Residential
County
New Castle County
APN
1103700057
Parking Spaces
—
Basement
—
Accessible
—
HOA Dues
—
Garage
—
Features
—
Last updated by owner on Sep 18, 2026.
Climate risks
1/10 Flood Factor
Minimal risk of a flood reaching the building in the next 30 years
1/10 Fire Factor
Unlikely to be in a wildfire in next 30 years
7/10 Heat Factor
7 days above 104° expected this year, 15 days in 30 years
6/10 Wind Factor
27% chance of strong winds in next 30 years
4/10 Air Factor
3 unhealthy days expected this year, 5 days in 30 years
Provided by First Street
Historical weather
Bear, DE • 19701
Average low and high temperatures (°F)
37
23
42
26
59
38
67
46
73
55
84
64
88
70
81
62
80
61
69
47
57
39
42
28
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Sun exposure
99/ 100
Exceptional sunlight
Sunscore
This home ranks in the top 5% for direct sun exposure in Bear. There appears to be minimal shading by surrounding buildings, terrain, and vegetation.
10.8 hrs
6.8 hrs
JuneDecember
Provided by Shadowmap
Redfin Estimate for 557 Mansion House Rd
$1,153,365
$47K under list price of $1.20M
Nearby comparable homes
The Redfin Estimate uses 6 recent nearby sales, priced between $460K to $620K.