17 Thornhill Road
Greenwich, Connecticut 06878
- Beds
- 4
- Baths
- 3
- SqFt
- 1,990
- Acres
- 0.23
- Year Built
- 1931
- Neighborhood
- Riverside
- Property Type
- Single Family

Matt Caiola
Luxury Real Estate Advisor
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About This Home
Welcome to 17 Thornhill, a beautifully appointed home offering exceptional space, versatility and effortless indoor-outdoor living. Sun-filled interiors feature hardwood floors and an inviting flow from the spacious living room to a warm family room anchored by a striking floor-to-ceiling stone fireplace. The eat-in kitchen offers granite countertops, stainless steel appliances and direct access to the deck, creating an ideal setting for everyday living and entertaining. A first-floor bedroom/office with adjacent full bath and conveniently tucked-away laundry provides wonderful flexibility. Upstairs, the serene primary suite features a vaulted ceiling, custom walk-in closet and spa-like bath with double vanity, soaking tub and glass-enclosed shower. Two additional bedrooms and a beautifully updated hall bath complete the level. A spectacular bonus room above the garage impresses with soaring vaulted ceilings, exposed beams, skylight, hardwood floors and private balcony, perfect for a media room, playroom, gym or office. Outdoors, enjoy an expansive, level and fully fenced backyard with mature landscaping, stone walls, spacious deck, stone patio/fire pit area and garden beds. A rare combination of generous living space, character and exceptional outdoor amenities designed for today's lifestyle.
Key Facts
Market Snapshot
The Greenwich Market
Single Family · trailing 12 months
Active Listings
44
16 under contract
Median List Price
$3.27M
44 active listings
Median Closed Price
$2.50M
216 sales
Median Days on Market
45
44 active listings
Median $ / Sq Ft
$871
44 active listings
Sale-to-List Ratio
100.7%
216 sales
How this home compares
List Price
$1.75M
vs $3.27M median
46.6% below median
Price / Sq Ft
$879
vs $871 median
In line with median
Days on Market
0 days
vs 45 days median
45 days fresher than median
Based on 44 active and 216 closed sales (trailing 12 mo) of single family in Greenwich. Source: SmartMLS · As of September 11, 2026.
Location
17 Thornhill Road, Greenwich, Connecticut
Estimate Your Payment
Estimated Monthly Payment
Rates: Freddie Mac PMMS via FRED · Updated Sep 10, 2026per month
- Principal & Interest$9,084
- Property Taxes$759
- Insurance$583
- HOA$0
Estimates only. Actual rates, taxes, insurance, and HOA fees vary. Consult a lender for current rates.
Location
Residence
- Property Type
- Single Family
- Style
- Colonial
- Year Built
- 1931
- New Construction
- No/Resale
- Living Area
- 1,990 sq ft
Schools
- Elementary
- Cos Cob
- High
- Greenwich
Interior
- Heating
- Zoned
- Cooling
- Central Air
- Fireplaces
- 1
- Laundry
- Main Level
- Appliances
- WasherDryer
- Basement
- Full
Exterior & Lot
- Lot Size
- 0.23 acres
- Zoning
- R-7
- Garage / Parking
- 2 garage spacesDetached Garage
- Waterfront Details
- Not Applicable
- Water Source
- Public Water Connected
- Sewer
- Public Sewer Connected
- Construction
- Vinyl Siding
- Roof
- Asphalt Shingle
- Foundation
- Block
- Lot Description
- Level Lot
Listing & Financials
- Property Taxes
- $9,103 / Annually
- Days on Market
- 0
- MLS #
- 24205832
- MLS Status
- Coming Soon
Similar Properties
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This information is believed to be accurate, but without warranty.
The IDX display contains information sourced from SmartMLS, Inc. as of 9/11/2026. This information is provided for consumers' personal, non-commercial use and may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing or leasing. Data is deemed reliable but is not guaranteed accurate by the MLS, the listing broker, the listing agent, or Matt Caiola. Buyers and tenants should independently verify all information that matters to their decision.
Map locations may be approximate. Any offer of compensation, if applicable, is made only to participants of the MLS where the listing is filed. ©2026 Smart MLS, Inc. All rights reserved.
Data last updated on 9/11/2026 at 8:20 PM UTC.