In a market dominated by the expected, this deceptively spacious geodesic dome home in Raritan Township offers something altogether different. Inspired by the visionary designs of Buckminster Fuller, its distinctive form reflects a philosophy of efficiency, sustainability, and living in harmony with the landscape. What makes this property especially compelling is not just its architecture, but the surprising amount of space it contains inside and out. The true star of the property is the backyard. Deep, grassy, and partially preserved, it stretches toward the neighboring grounds of Desmares Elementary School, creating a sense of openness that is increasingly difficult to find. A large kitchen with abundant workspace adjoins the family room, where sliders connect directly to the backyard. Upstairs are three bedrooms, a finished attic area reached via a ladder, and two full bathrooms, including a private bath in the primary suite. Two full bathrooms serve the main level near a flexible room that could serve as a guest room. An attached two-car garage opens into a spacious mudroom, setting the stage for a home that balances character with practicality. Rare for its alternative design, generous footprint, and remarkable setting, here is a chance to own not just a home, but a piece of very cool architectural history!
Active
$579,900
20 Sand Hill Rd, Raritan Twp., NJ 08822
3beds
--sqft
Single Family Residence
Built in 1981
2.45 Acres Lot
$-- Zestimate®
$--/sqft
$-- HOA
What's special
Finished attic areaDistinctive formAttached two-car garageSpacious mudroom
- 2 days |
- 1,450 |
- 79 |
Likely to sell faster than
Zillow last checked:
Listing updated:
Listed by:
Timothy J. Soltis 609-397-1974,
Callaway Henderson Sotheby's Ir
Source: GSMLS,MLS#: 4035662
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Facts & features
Interior
Bedrooms & bathrooms
- Bedrooms: 3
- Bathrooms: 4
- Full bathrooms: 4
Primary bedroom
- Description: Walk-In Closet
Bedroom 1
- Level: Second
- Area: 315
- Dimensions: 21 x 15
Bedroom 2
- Level: Second
- Area: 143
- Dimensions: 13 x 11
Bedroom 3
- Level: Second
- Area: 150
- Dimensions: 15 x 10
Dining room
- Features: Formal Dining Room
- Level: Ground
- Area: 144
- Dimensions: 12 x 12
Family room
- Level: Ground
- Area: 418
- Dimensions: 22 x 19
Kitchen
- Features: Separate Dining Area
- Level: Ground
- Area: 108
- Dimensions: 12 x 9
Living room
- Level: Ground
- Area: 276
- Dimensions: 23 x 12
Basement
- Features: GameRoom, Laundry, RecRoom, SeeRem, Utility
Heating
- Forced Air, Natural Gas
Cooling
- Central Air
Appliances
- Included: Dishwasher, Range/Oven-Gas, Refrigerator, Washer, Gas Water Heater
Features
- Office, Rec Room, See Remarks, Kitchen
- Flooring: Carpet, Wood
- Basement: Yes,Full
- Has fireplace: No
Property
Parking
- Total spaces: 2
- Parking features: Additional Parking, Asphalt, Attached Garage
- Attached garage spaces: 2
Features
- Patio & porch: Deck, Patio
Lot
- Size: 2.45 Acres
- Dimensions: 2.4500
Details
- Parcel number: 1921000080000000190002
Construction
Type & style
- Home type: SingleFamily
- Architectural style: Custom Home
- Property subtype: Single Family Residence
Materials
- Vinyl Siding
- Roof: Asphalt Shingle,See Remarks
Condition
- Year built: 1981
Utilities & green energy
- Gas: Gas In Street
- Sewer: Septic Tank, Septic 4 Bedroom Town Verified
- Water: Well
- Utilities for property: Electricity Connected, Gas In Street
Community & HOA
Location
- Region: Flemington
Financial & listing details
- Tax assessed value: $373,800
- Annual tax amount: $11,322
- Date on market: 6/19/2026
- Ownership type: Fee Simple
- Electric utility on property: Yes
Estimated market value
Not available
Estimated sales range
Not available
Not available
Price history
| Date | Event | Price |
|---|---|---|
| 6/19/2026 | Listed for sale | $579,900+66.2% |
Source:  GSMLS #4035662 Report a problem | ||
| 6/3/2012 | Listing removed | $2,300 |
Source: RPM Nj Elite Report a problem | ||
| 4/25/2012 | Listed for rent | $2,300 |
Source: RPM Nj Elite Report a problem | ||
| 2/18/2012 | Listing removed | $349,000 |
Source: RE/MAX Pinnacle #2874354 Report a problem | ||
| 9/24/2011 | Price change | $349,000-7.9% |
Source: RE/MAX Pinnacle #2874354 Report a problem | ||
| 7/21/2011 | Listed for sale | $379,000+104.9% |
Source: RE/MAX Pinnacle #2874354 Report a problem | ||
| 2/10/1993 | Sold | $185,000 |
Source: Agent Provided Report a problem | ||
Public tax history
| Year | Property taxes | Tax assessment |
|---|---|---|
| 2025 | $10,829 | $373,800 |
| 2024 | $10,829 +6.4% | $373,800 |
| 2023 | $10,182 +3.9% | $373,800 |
| 2022 | $9,805 +2% | $373,800 |
| 2021 | $9,610 +2.1% | $373,800 |
| 2020 | $9,416 +1.2% | $373,800 |
| 2019 | $9,300 +1.6% | $373,800 |
| 2018 | $9,158 +1.8% | $373,800 |
| 2017 | $8,994 +2.6% | $373,800 |
| 2016 | $8,766 +1.3% | $373,800 |
| 2015 | $8,650 +0.1% | $373,800 |
| 2014 | $8,639 +1% | $373,800 |
| 2013 | $8,549 +0.9% | $373,800 |
| 2012 | $8,470 +0.1% | $373,800 |
| 2011 | $8,463 +4.1% | $373,800 |
| 2010 | $8,128 +1.4% | $373,800 -0.3% |
| 2009 | $8,020 +1.4% | $374,900 -7.1% |
| 2008 | $7,911 +0.2% | $403,600 |
| 2007 | $7,895 | $403,600 +75.9% |
| 2006 | -- | $229,500 |
| 2005 | -- | $229,500 |
| 2004 | -- | $229,500 |
| 2003 | -- | $229,500 |
| 2002 | -- | $229,500 |
| 2001 | -- | $229,500 |
Find assessor info on the county website
Monthly payment
Est. payment$--/mo
Payment breakdown
Explore the cost of this home by adjusting the details. Changes won't be saved.All calculations are estimates and provided by Zillow, Inc. for informational purposes only. Actual amounts may vary.
HOA fees may include property taxes on listings classified as Co-Ops. Contact the listing agent and/or owner for fee details.
Mortgage interest rates are dependent on a number of factors, including credit score, down payment, and repayment length. Interest rate data provided by Zillow Group Marketplace, Inc. as of 1/1/1970 from various mortgage lenders with which we have lead or other similar arrangements; the Estimated Payment is an average of those rates.
See how much you could borrow to make a competitive offer.
Climate risks
Neighborhood: 08822
Nearby schools
GreatSchools rating
- 8/10F A Desmares Elementary SchoolGrades: PK-4Distance: 0.3 mi
- 6/10J P Case Middle SchoolGrades: 7-8Distance: 2.9 mi
- 6/10Hunterdon Central High SchoolGrades: 9-12Distance: 1.6 mi
Schools provided by the listing agent
- Elementary: Fa Desmares Es
- Middle: Jp Case Ms
- High: Hunterdon Cent
Source: GSMLS. This data may not be complete. We recommend contacting the local school district to confirm school assignments for this home.
A local agent can set up tours, give advice and negotiate with sellers.
A local lender can help you make sure your offer is ready when you are.
- New Jersey
- Hunterdon County
- Flemington
- 08822
- 20 Sand Hill Rd
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