Built in 1837 as the Delaware Valley Institute of Science over 4,000 sq ft in the main house, Smaller 2 bedroom Carriage House included in sale. Main house needs rehab-not habitable, originally had 3 bathrooms 5 bedrooms but has been changed/altered and needs replacement, kitchen has been removed. Calling all contractors/investors this could be a great project. Carriage house is in good condition and is in move in condition. Two car detached garage. Inground pool. Many possibilities. Bank owned being sold as is. Acreage is from Del Cty Assessors-if looking to subdivide/build please double check/survey. Being sold as is-buyer responsible for any township inspections including U+O, corp add and proof of funds needed with all agreements.
Magnificent Historical Stone Property W/ All The Charm & Quality Of An Older Home But W/ All Updated Amenities. Lg Rms W/ High Ceil, Random Width Floors. Home Was Built In 1837 As Delaware Valley Institute Of Science & Features 20 Rooms. Includes Fully Furnished Carriage House Which Could Be Rented Or Used As In-Law Quarters $1,000 Bonus To Sellling Agent For An Acceptable A/S Payable At Settlement
BRIGHT MLS #PADE421072
Apr 20, 1999
Listed
$395,000
$82/sq ft
Apr 20, 1999
Listing Removed
—
BRIGHT MLS #PADE413838
Apr 20, 1999
Listing Removed
—
Apr 8, 1998
Listed
$395,000
$82/sq ft
BRIGHT MLS #PADE418606
Jan 20, 1998
Listed
$475,000
$98/sq ft
Jan 20, 1998
Listing Removed
—
BRIGHT MLS #PADE413804
Jan 20, 1998
Listed
$475,000
$98/sq ft
Jan 20, 1998
Listing Removed
—
Year
Property tax
Land + Additions
Assessment*
2026
$12,346 (+3.1%)
$203,870 + $341,210
$545,080
2025
$11,973 (+6.0%)
$203,870 + $341,210
$545,080
2024
$11,295 (+3.6%)
$203,870 + $341,210
$545,080
2023
$10,899 (+3.0%)
$203,870 + $341,210
$545,080
2022
$10,586 (−39.6%)
$203,870 + $341,210
$545,080
2021
$17,530 (+93.5%)
$203,870 + $341,210
$545,080
2020
$9,060 (+1.8%)
$83,810 + $168,190
$252,000
2019
$8,898 (+1.6%)
$83,810 + $168,190
$252,000
2018
$8,761 (+2.3%)
2017
$8,562 (+3.5%)
2015
$8,275 (+1.5%)
2014
$8,152 (+1.7%)
2013
$8,013 (−23.7%)
2011
$10,503 (+2.5%)
2010
$10,251
Tax history for 101 W Rose Tree Rd
Year
Property tax
Land + Additions
Assessment*
2026
$12,346 (+3.1%)
$203,870 + $341,210
$545,080
2025
$11,973 (+6.0%)
$203,870 + $341,210
$545,080
2024
$11,295 (+3.6%)
$203,870 + $341,210
$545,080
2023
$10,899 (+3.0%)
$203,870 + $341,210
$545,080
2022
$10,586 (−39.6%)
$203,870 + $341,210
$545,080
2021
$17,530 (+93.5%)
$203,870 + $341,210
$545,080
2020
$9,060 (+1.8%)
$83,810 + $168,190
$252,000
2019
$8,898 (+1.6%)
$83,810 + $168,190
$252,000
2018
$8,761 (+2.3%)
2017
$8,562 (+3.5%)
2015
$8,275 (+1.5%)
2014
$8,152 (+1.7%)
2013
$8,013 (−23.7%)
2011
$10,503 (+2.5%)
2010
$10,251
*Taxable value of land and structures on it ("additions") is determined regularly by local assessors and does not affect market price.
Public record
Public record
Zoning
Beds
7
Baths
3.5
Stories
2
Lot width
—
Lot depth
—
Lot size
1.91 Acres
Year renovated
—
Sq. Ft.
3,464
Year built
1837
Style
Single Family Residential
County
Delaware County
APN
35000175500
Parking Spaces
—
Basement
—
Accessible
—
HOA Dues
—
Garage
—
Features
—
Last updated by owner on Aug 19, 2026.
R-1
Residence District
The R-1 Residence District is intended to promote the maintenance of existing low density neighborhoods while providing the opportunity for future infill development at similar intensities. Single-household detached cluster and planned residential development options are conditionally permitted in the interest of protecting existing environmental resources.