20 Sand Hill RdRaritan Twp., NJ 08822

Single Family · 3 Beds · 4 Full Baths
$579,900 Active

20 Sand Hill Rd Overview

Time on Site:
10 days
Visits:
0

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!

Listing provided courtesy of CALLAWAY HENDERSON SOTHEBY'S IR- MLS# 4035662MLS ProviderContact Information: 609-397-1974
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20 Sand Hill Rd Facts & Features

  • Type Single Family

Details

General

School Information

  • Elementary School: FA Desmares ES
  • High School: Hunterdon Cent

Building Information

  • Year Built: 1981

Location/Region

  • County Or Parish: Hunterdon

Building Exterior/Construction

  • Construction Date/Year Built Des: Standing

Community/Development

  • Community Living: No

Tax Information

  • City Tax: *
  • County Tax: *
  • Tax Amount Tax: *
  • Tax Annual Amount: $11,322.00
  • Tax Assessed Value: *
  • Tax Rate Amount: 3.029
  • Tax Rate Year: 2025
  • Tax Year: 2025

General Information

  • Primary Style: Custom Home
  • Property Sub Type: Single Family
  • Property Type: Residential
  • Senior Community: No

Interior

Building Information

  • Basement Level Rooms: GameRoom,Laundry,RecRoom,SeeRem,Utility

Parking Information

  • Garage Spaces: 2

Beds/Baths

  • Bathrooms Full: 4
  • Bathrooms Half: 0
  • Bathrooms Total: 4.00
  • Bedrooms Total: 3
  • Bedroom 1 Dim: 21x15
  • Bedroom 1 Level: Second
  • Bedroom 2 Dim: 13x11
  • Bedroom 2 Level: Second
  • Bedroom 3 Dim: 15x10
  • Bedroom 3 Level: Second

Building Interior

  • Appliances: Dishwasher, Range/Oven-Gas, Refrigerator, Washer
  • Garage Description: Attached Garage
  • Water Heater: Gas

General Information

  • Accessibility Features: No
  • Cooling: Central Air
  • Fireplaces Total: 0
  • Flooring: Carpeting, Wood
  • Heating: Forced Hot Air
  • Rooms Total: 8

Room Information

  • Dining Area: Formal Dining Room
  • Dining Room Dim: 12x12
  • Dining Room Level: Ground
  • Family Room Dim: 22x19
  • Family Room Level: Ground
  • Ground Level Rooms: BathOthr,DiningRm,FamilyRm,Kitchen,LivingRm,Office,Porch,RecRoom
  • Kitchen Area: Separate Dining Area
  • Kitchen Dim: 12x9
  • Kitchen Level: Ground
  • Level 2 Rooms: 3 Bedrooms, Bath Main, Bath(s) Other
  • Level 3 Rooms: Loft
  • Living Room Dim: 23x12
  • Living Room Level: Ground
  • Primary Bedroom Desc: Walk-In Closet
  • Other Room 1: Office
  • Other Room 1 Dim: 18x14
  • Other Room 1 Level: Ground
  • Other Room 2: Rec Room
  • Other Room 2 Dim: 26x15
  • Other Room 2 Level: Ground
  • Other Room 3: See Remarks
  • Other Room 3 Dim: 35x25
  • Other Room 3 Level: Third

Exterior

Parking Information

  • Parking Features: Additional Parking, Blacktop

Lot Information

  • Lot Size Area: 2.4500
  • Water Source: Well

Building Exterior/Construction

  • Architectural Style: Custom Home
  • Construction Materials: Vinyl Siding
  • Roof: Asphalt Shingle, See Remarks

General Information

  • Exterior Features: Deck, Patio
  • Pool Private: No
  • Sewer: Septic, Septic 4 Bedroom Town Verified
  • Utilities: Electric, Gas In Street

20 Sand Hill Rd Neighborhood

Community

08822 (Flemington) Demographics

43
Median Age
450
Population Density (per sq. mile)
62%
College Educated
$113,352
Estimated Median Income
8,717
Estimated Total Home Owners
2,130
Estimated Total Renters
80% / 20%
Estimated Owner / Renter Divide
3
Estimated Average Household Size
Community data courtesy of LiveBy, Inc.

20 Sand Hill Rd Monthly Cost

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$ %
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$
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* All calculations are estimates and provided by Reliance Network, for informational purposes only. Actual amounts may vary. ** Assumes 6.50% APR, 20% down payment, and conventional 30-year fixed rate first mortgage. Rates cited are for instructional purposes only; current rates are subject to change at any time without notice. You should not make any decisions based simply on the information provided. Additional required amounts such as taxes, insurance, homeowner association dues, assessments, mortgage insurance premiums, flood insurance or other such required payments should also be considered. Contact your mortgage company for current rates and additional information. Any mortgage broker or insurance agent that may appear is independent and is not affiliated with, endorsed by, or provided by the MLS.

20 Sand Hill Rd Market Data

Based on the last 30 days in this zip code

$803,390
Average List Price
$285
Average Price per Square Foot
2
Properties Sold
78
Average Days on Market
21
Properties for Sale
Calculations provided by Reliance Network

20 Sand Hill Rd History

Date Event Value Agent
6/19/2026Source: Garden State MLS Added to Database
June 19, 2026