Private Estate & Guest House on 23 Acres, Balances Natural Setting With Luxurious Living Experience the charm of a natural setting enhanced with the luxuries of estate living as you approach this 23+ acre property waiting for new owners to enjoy. Featuring a 4-bedroom and 3.5 bath primary residence, 1-bedroom and 1.5 bath guest house, a bank barn/garage for three vehicles, in ground pool, wrap-around deck, and gazebo, this estate is designed to be adored. As you turn your attention from the beautiful wooded surroundings to the residence, you ll delight in timeless board and batten siding beforemoving indoors to experience hardwood, pine, and slate floors and repurposed barn beams embellishingvaulted ceilings. The show-stopping kitchen stands at the heart of the home with a large center island and prep sink, extended wet bar, stainless farm sink, warming drawer, gas range, upgraded subzero appliances including Bosch and Dacor brands, plus large butler s pantry with outside exit. The kitchen opens to the home s great room where family can gather to enjoy a free-standing wood-burning fireplace and walls of windows onlooking the peaceful grounds. The main level also features a stately dining room, two powder rooms, mud room, piano alcove, and french doors opening to the wrap-around deck. On the second and third levels, you ll find a master suite, complete with marble bath, jacuzzi, steam shower, and walk-in closet, plus three renovated bedrooms and spacious game room. The detached and recently renovated guest house is a popular income-earning Air B & B featuring all the amenities guests or in-laws need to be comfortable, including bedroom, 1.5 baths, custom kitchen, A & C, and gazebo. The unique charm of this property, adorned with upscale features and conveniences, make this estate a desired and special place for new owners to call home in beautiful Bucks County, PA. This home is being sold as is, subject to bank approval.
Single-familyProperty Type
1815Year Built
23.53 acresLot Size
$366Est. Price/Sq.Ft.
Listed by Concetta Stefani• Coldwell Banker Hearthside
•267-350-5555 (broker)
•info@cbhearthside.com (broker)
Listed by Anthony Stefani• Coldwell Banker Hearthside
•267-350-5555 (broker)
•info@cbhearthside.com (broker)
Bought with Sita Philion• Callaway Henderson Sotheby's Int'l-Pennington
Theidelberry Farm' This Enchanting Property Is An Escape Not Only In Place & Time, But In Consciousness. Heidelberry Farm Is A Dream World, Conceived By An Artist. It's Terraced Gardens & Velvet Lawns, Old Brick Paths & Flowering Trees Are Nestled Amid 23 Acres Of Utter Seclusion.
Year
Property tax
Land + Additions
Assessment*
2026
$8,124 (+2.2%)
$13,400 + $38,000
$51,400
2025
$7,950 (+1.0%)
$13,400 + $38,000
$51,400
2024
$7,874 (+2.7%)
$13,400 + $38,000
$51,400
2023
$7,668 (+1.2%)
$13,400 + $38,000
$51,400
2022
$7,579 (+0.7%)
$13,400 + $38,000
$51,400
2021
$7,528
$13,400 + $38,000
$51,400
2020
$7,528 (+1.2%)
$13,400 + $38,000
$51,400
2019
$7,440 (+0.7%)
$13,400 + $38,000
$51,400
2018
$7,389 (+1.6%)
$13,400 + $38,000
$51,400
2017
$7,270 (+2.8%)
$13,400 + $38,000
$51,400
2015
$7,069
$13,400 + $38,000
$51,400
2014
$7,070
$13,400 + $38,000
$51,400
2013
$7,070 (+0.9%)
$13,400 + $38,000
$51,400
2011
$7,005 (+2.6%)
$13,400 + $38,000
$51,400
2010
$6,826
$13,400 + $38,000
$51,400
Tax history for 405 County Line Rd
Year
Property tax
Land + Additions
Assessment*
2026
$8,124 (+2.2%)
$13,400 + $38,000
$51,400
2025
$7,950 (+1.0%)
$13,400 + $38,000
$51,400
2024
$7,874 (+2.7%)
$13,400 + $38,000
$51,400
2023
$7,668 (+1.2%)
$13,400 + $38,000
$51,400
2022
$7,579 (+0.7%)
$13,400 + $38,000
$51,400
2021
$7,528
$13,400 + $38,000
$51,400
2020
$7,528 (+1.2%)
$13,400 + $38,000
$51,400
2019
$7,440 (+0.7%)
$13,400 + $38,000
$51,400
2018
$7,389 (+1.6%)
$13,400 + $38,000
$51,400
2017
$7,270 (+2.8%)
$13,400 + $38,000
$51,400
2015
$7,069
$13,400 + $38,000
$51,400
2014
$7,070
$13,400 + $38,000
$51,400
2013
$7,070 (+0.9%)
$13,400 + $38,000
$51,400
2011
$7,005 (+2.6%)
$13,400 + $38,000
$51,400
2010
$6,826
$13,400 + $38,000
$51,400
*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
3
Baths
2.5
Stories
3
Lot width
—
Lot depth
—
Lot size
11.02 Acres
Year renovated
—
Sq. Ft.
2,665
Year built
1815
Style
Single Family Residential
County
Bucks County
APN
11-002-003-001
Parking Spaces
—
Basement
—
Accessible
—
HOA Dues
—
Garage
—
Features
—
Last updated by owner on Sep 18, 2026.
RP
Resource Protection District
To protect areas consisting largely of natural features such as mature forest, steep slopes, scenic areas, wetlands, streams, floodplains and ponds including those identified in the latest version of the Bucks County Natural Resources Plan. Intensities are such as to insure that these resources are preserved, while providing for residential development with suitable sewage disposal. The land contained in this district is identified in the Durham Township Comprehensive Plan and the Bucks County Comprehensive Plan as those parts of the Township which contain important natural resource features and/or historic areas which have only a limited capacity for development. Wherever possible the growth of the Township and the County must respect these limitations. Good planning dictates that growth be channeled into those areas that can best accommodate it without damage to the environment or risking the health, safety and welfare of present and future generations.