$1,020,000
SOLD JUL 10, 2025

9 Walnut St Cos Cob, CT 06807

3 Beds
1 Bath
1,482 Sq Ft
0.52 Acres

Recently Sold

$688 Per Sq Ft

11% Below List Price

22 Days on Market

Highlights

  • Detached Guest House
  • Colonial Architecture
  • Patio
  • North Mianus School Rated A+
  • Deck
  • Garden

About This Home

As of July 2025

Situated on a spacious .52-acre lot, this property offers a fantastic opportunity for renovation and customization. The three-bedroom home includes one full bathroom, an enclosed sunroom, and a patio, providing a solid foundation to create your ideal living space. A detached garage offers additional storage or workshop potential, while a separate one-bedroom cottage adds versatility-perfect for guests, extended family, or a private workspace. The expansive lot allows for endless possibilities, whether you envision a garden retreat, outdoor entertaining space. Conveniently located near local amenities, schools, and recreational areas, this property is an excellent option for those looking to invest, renovate, or reimagine a home to fit their needs.

Last Agent to Sell the Property

Toni Riordan

Berkshire Hathaway NE Prop. License #RES.0764237 Listed on: 02/12/2025

Berkshire Hathaway NE Prop.

Co-Listed By

John Chopourian

Berkshire Hathaway NE Prop. License #RES.0118345

Last Buyer's Agent

Peter Janis

Berkshire Hathaway NE Prop. License #RES.0758273

Berkshire Hathaway NE Prop.

Home Details

Home Type

  • Single Family

Est. Annual Taxes

  • $8,826

Year Built

  • Built in 1970

Lot Details

  • 0.52 Acre Lot
  • Garden
  • Property is zoned R-12

Home Design

  • 1,482 Sq Ft Home
  • Colonial Architecture
  • Concrete Foundation
  • Stone Foundation
  • Frame Construction
  • Asphalt Shingled Roof
  • Clap Board Siding

Kitchen

  • Oven or Range
  • Gas Range
  • Dishwasher

Bedrooms and Bathrooms

  • 3 Bedrooms
  • 1 Full Bathroom

Basement

  • Partial Basement
  • Crawl Space

Parking

  • 2 Car Garage
  • Parking Deck

Outdoor Features

  • Deck
  • Patio
  • Exterior Lighting
  • Rain Gutters

Schools

  • North Mianus Elementary School
  • Greenwich High School

Utilities

  • Cooling System Mounted In Outer Wall Opening
  • Heating System Uses Gas
  • Electric Water Heater

Additional Features

  • Laundry on main level
  • Detached Guest House

Listing and Financial Details

  • Assessor Parcel Number 1858762

Home Details

Home Type

Single Family

Est. Annual Taxes

$8,826

Year Built

Built in 1970

Lot Details

0

Listing Details

  • Neighborhood: Cos Cob
  • Property Type: Single Family For Sale
  • Style: Colonial
  • Sq Ft Est Heated Above Grade: 1482
  • Total Sq Ft: 1482
  • Year Built: 1970
  • New Construction: No/Resale
  • In Law Access: Detached
  • Direct Waterfront: No
  • Home Warranty Offered: No
  • Directions: Valley Road to Walnut Street
  • Financing Used: Cash
  • In Law Apartment: Possible
  • Street Type: Street
  • Special Features: None
  • Property Sub Type: Detached

Interior Features

  • Total Bedrooms: 3
  • Total Bathrooms: 1
  • Full Bathrooms: 1
  • Basement Description: Crawl Space, Partial
  • Appliances: Gas Range, Oven/Range, Refrigerator, Dishwasher
  • Laundry Room Location: Main level
  • Laundry Room Info: Main Level
  • Attic: No

Exterior Features

  • Exterior Features: Deck, Gutters, Garden Area, Lighting, Patio
  • Exterior Siding: Clapboard
  • Foundation Type: Concrete, Stone
  • Roof Information: Asphalt Shingle
  • Waterfront Description: Not Applicable
  • Swimming Pool: No
  • Construction Description: Frame

Garage/Parking

  • Garages Number: 2
  • Garage And Parking: Detached Garage

Utilities

  • Cooling System: Wall Unit
  • Heat Type: Gas on Gas
  • Hot Water Description: Electric, Domestic
  • Water Source: Public Water Connected
  • Sewer: Public Sewer Connected

Lot Info

  • Acres: 0.52
  • Lot Description: Lightly Wooded Level Lot Open Lot
  • Zoning: R-12
  • Parcel #: 1858762

Tax Info

  • Tax Year: July 2025-June 2026
  • Property Tax: 8826

MLS Schools

  • Elementary School: North Mianus
  • High School: Greenwich

Range of Values:

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Home Values in the Area

Source: Public Records

Average Home Value in this Area

Source: Public Records

Property History

Date Event Price List to Sale Price per Sq Ft
10/27/2025 10/27/25 For Sale $1,575,000 +54.4% $1,063 / Sq Ft
07/10/2025 07/10/25 Sold $1,020,000 -11.3% $688 / Sq Ft
03/06/2025 03/06/25 Pending -- -- --
02/12/2025 02/12/25 For Sale $1,150,000 -- $776 / Sq Ft
Source: SmartMLS

Tax History Compared to Growth

Source: Public Records

Tax History

Year Tax Paid Tax Assessment Tax Assessment Total Assessment is a certain percentage of the fair market value that is determined by local assessors to be the total taxable value of land and additions on the property. Land Improvement
2021 $8,096 $641,340 $480,270 $161,070
Source: Public Records

Agents Affiliated with this Home

  • Toni Riordan

    Seller's Agent in 2025

    Toni Riordan

    Berkshire Hathaway Home Services

    (203) 826-2345

    1 in this area

    93 Total Sales

    Toni Riordan
    Section Image
  • Peter Janis

    Seller's Agent in 2025

    Peter Janis

    BHHS New England Properties

    (203) 249-1013

    19 in this area

    62 Total Sales

    Peter Janis
    Section Image
  • John Chopourian

    Seller Co-Listing Agent in 2025

    John Chopourian

    Berkshire Hathaway Home Services

    (203) 733-4323

    1 in this area

    103 Total Sales

    John Chopourian
    Section Image
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Map

Source: SmartMLS

MLS Number: 24073498

SmartMLS

APN: GREE M:08 B:2718/S

Connecticut Fairfield County Cos Cob 06807

9 Walnut St, Cos Cob, CT

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