9 Frontier Rd, Cos Cob, CT 06807
OFF MARKET

$3,301,300

Trulia Estimate
  • 5 Beds
  • 4 Baths
  • 4,647 sqft (on 1.19 acres)

9 Frontier Rd, Cos Cob, CT 06807

Est. Refi. Payment $21,854/mo*
Refinance Your Home
Currently Off Market - Sold Aug 10, 2022 for $2,353,000

Home Value

Trulia Estimate
$3.3M
Since last month
Decreased$27K (-0.8%)
Since last year
Increased$263K (+8.7%)
Since last sale
Increased$942K (+40%)
Learn more about this home's value by checking out its Trulia Estimate, the value of nearby homes, and how much similar homes have sold for.

Trulia Estimate

The of this home's value increased by +74% in the last 10 years
MonthEstimated value
2026
August 2026$3.3M
August 2026$3.29M
July 2026$3.32M
June 2026$3.37M
May 2026$3.33M
April 2026$3.26M
March 2026$3.28M
February 2026$3.12M
January 2026$3.05M
2025
2024
2023
2022
2021
2020
2019
2018
2017
2016

Comparable sales

These are recently sold homes that have a similar location or other similar features to this home, like bedrooms, bathrooms, and square footage. Get a sense of the expected prices in the area by viewing these homes.
Address
Distance
Property Type
Sold Price
Sold Date
Bed
Bath
Sqft
150 N Old Stone Bridge Rd, Cos Cob, CT
0.54
Single-Family Home
$2,550,000
05/15/26
4
4.5
4,161
2 Daffodil Ln, Cos Cob, CT
0.63
Single-Family Home
$3,314,000
06/26/26
5
4
4,777
441 Cognewaugh Rd, Cos Cob, CT
0.47
Single-Family Home
$2,000,000
07/16/26
4
3
2,899
300 Stanwich Rd, Greenwich, CT
0.45
Single-Family Home
$3,100,000
07/07/26
5
5.5
5,114
29 Old Stone Bridge Rd, Cos Cob, CT
0.72
Single-Family Home
$3,000,000
05/21/26
4
4.5
3,734
484 Cognewaugh Rd, Cos Cob, CT
0.47
Single-Family Home
$1,900,000
04/23/26
3
2.5
2,832
10 Tomahawk Ln, Greenwich, CT
0.81
Single-Family Home
$2,840,000
04/10/26
3
3.5
3,648
129 Doubling Road, Greenwich, CT
0.60
Single-Family Home
$5,650,000
05/19/26
4
5
5,417
75 West Glen Drive, Stamford, CT
0.98
Single-Family Home
$2,250,000
01/09/26
4
4.5
4,884
34 Dunwoodie Pl, Greenwich, CT
0.65
Single-Family Home
$4,700,000
07/14/26
5
5.5
5,169

Nearby home prices

Get a sense of expected prices in the area by checking the value of nearby homes.
Address
Distance
Price
Bed
Bath
Sqft
Status
191 Cat Rock Rd, Cos Cob, CT 06807
0.13
$2,640,200
4
4
3,153
Off Market
195 Cat Rock Road, Greenwich, CT 06830
0.14
$1,554,000
3
1.5
2,712
Off Market
201 Cat Rock Road, Greenwich, CT 06830
0.18
-
3
2.5
2,100
Off Market
25 Ferncliff Rd, Cos Cob, CT 06807
0.16
$2,686,500
5
3.5
3,738
Off Market
8 Old Camp Ln, Cos Cob, CT 06807
0.20
$3,065,100
5
5
4,118
Off Market
36 Horseshoe Rd, Cos Cob, CT 06807
0.17
$2,692,000
6
4
3,704
Off Market
16 Horseshoe Rd, Cos Cob, CT 06807
0.20
$4,216,600
5
4.5
5,365
Off Market
174 Cat Rock Road, Greenwich, CT 06830
0.26
$2,172,900
3
3
3,198
Off Market
174 Cat Rock Rd, Cos Cob, CT 06807
0.26
$1,912,800
4
3
2,575
Off Market
31 Ferncliff Rd, Cos Cob, CT 06807
0.23
$2,250,300
3
3
2,938
Off Market
178 Cat Rock Rd, Cos Cob, CT 06807
0.28
$4,656,900
5
5
4,794
Off Market
164 Cat Rock Rd, Cos Cob, CT 06807
0.27
$4,385,900
5
5.5
4,462
Off Market

Local Information

  • Map ViewExplore the area around 9 Frontier Rd.
  • Schools1 Preschool School1 Elementary School1 Middle School1 High School
  • Shop & Eat
-- mins to
Commute Destination

Home Highlights

Single-Family Home
Built in 1969
1.19 acre lot
4,647 sqft
$710/sqft
Garage

About this House

Completely renovated and expanded in 1998, this beautiful five bedroom home in the North Street school district offers spacious formal room and great flow for entertaining. Open L-shaped living/dining room, family room with stone fireplace, kitchen with island and casual dining area. Step out onto the expansive deck overlooking the beautiful, private backyard. Master suite with tray ceiling, lux bath and walk-in closets. Three additional bedrooms on second floor. Finished lower level with open play/recreation space, media space, bedroom and bath. Three car garage and ample parking.
9 Frontier Rd, Cos Cob, CT 06807 is a 5 bedroom, 4 bathroom, 4,647 sqft single-family home built in 1969. It last sold for $2,353,000 on Aug 10, 2022. This property is not currently displayed as for sale or rent on Trulia. The Trulia Estimate is $3,301,300.

Home Details for 9 Frontier Rd

Interior Features

Interior Details
BasementNumber of Rooms: 10
Heating & Cooling
Heating: Forced AirAir ConditioningHeating Fuel: Forced Air
Levels, Entrance, & Accessibility
Stories: 2
Fireplace & Spa
Fireplace

Exterior Features

Exterior Home Features
Roof: AsphaltDeckExterior: Wood
Parking & Garage
GarageParking: Garage Attached

Property Information

Year Built
Year Built: 1969Year Updated: 1975
Property Type / Style
Property Type: Single Family HomeArchitecture: Colonial

Community

Units in Building: 1

Lot Information

Lot Area: 1.19 acres

Price and Tax history

DateEventPrice
Aug 10, 2022
Source: Greenwich MLS, Inc. #115908
Sold
$2,353,000
Jun 7, 2022
Source: Smart MLS #170492089
Contingent
$2,229,000
May 27, 2022
Source: Greenwich MLS, Inc. #115908
Listed For Sale
$2,229,000
Sep 19, 2014
Source: Greenwich MLS, Inc. #90777
Sold
$1,910,000
Jun 26, 2014
Source: Agent Provided
Listed For Sale
$1,995,000

Market trends in Greenwich

Last updated August 2026
Buyer'sMarketSeller'sMarket
Avg. sale price
$2.58M
$150KMoM
Sale-to-List Price
104.8%
1.0%MoM
Price per sq ft
$825
$1MoM
Available listings
152
30MoM

Around this home

What Locals Say about Greenwich

At least 470 Trulia users voted on each feature.

  • 88 % Say it's dog friendly

  • 83 % Say car is needed

  • 77 % Say parking is easy

  • 76 % Say there's holiday spirit

  • 74 % Say people would walk alone at night

  • 73 % Say yards are well-kept

  • 69 % Say kids play outside

  • 67 % Say it's walkable to restaurants

  • 67 % Say they plan to stay for at least 5 years

  • 67 % Say it's quiet

  • 60 % Say there are sidewalks

  • 60 % Say there's wildlife

  • 58 % Say neighbors are friendly

  • 57 % Say streets are well-lit

  • 55 % Say it's walkable to grocery stores

  • 45 % Say there are community events

Sourced by Trulia users. Learn more about our methodology.
  • Trulia User
    "Dog friendly"
    0
    Flag
  • Trulia User
    "Great long walking trails all Over the town, and dog parks! So it is just wonderfully dog friendly. "
    0
    Flag
  • Justine
    "Greenwich car show, dog day out, Bruce museum, proximity to Highway, public beach and pool for Greenwich residents"
    0
    Flag
  • Trulia User
    "School events, country club, cohen civic center, beach, walk-to-town, nice holiday environments, nice neighbors and neighborhoods!"
    0
    Flag
  • Dalvesbrito
    "Block party School Halloween party School movie party Fireworks on 4th of July Center civic events "
    0
    Flag
  • Kellysgreensllc
    "There are good schools,parks,library here. Conveniently located near mass transit.Not to forget our beaches. Local restaurants "
    0
    Flag
  • eiji.nishimuras
    "No good dog park to speak of. And generally park regulation and beach regulation is not very dog friendly "
    0
    Flag
  • Sharon Elkayam
    "It is a friendly community where the kids ride bikes and play together. The schools are good. The kids play in the front yards. "
    0
    Flag
  • Jp
    "It’s the best blend of good suburban town systems and support, and easy access to the center of economic opportunity and culture. "
    0
    Flag
  • Stefanie Lacoff, Realtor
    "Many parks and trails to walk your dog. Dogs are allowed at the beach during winter months. Greenwich is a great place to live! "
    1
    Flag
  • Stefanie Lacoff, Realtor
    "Greenwich is diverse and inclusive. People are educated and parents are involved. We have great amenities and resources for our community. "
    0
    Flag
  • Stefanie Lacoff, Realtor
    "Greenwich is a fantastic town to live in and raise a family. It’s great for all ages from kids through seniors. "
    0
    Flag
  • Jmcdg22m5w
    "It’s a quiet and clean neighborhood, I like it a lot. The restaurants are beautiful, the people are friendly, it is an easily accessible place for pharmacies or clothing and accessories stores."
    0
    Flag
  • Trulia User
    "I’ve lived here 25 years and love it. Looking to stay in the area only need a bigger house with no steps."
    1
    Flag
  • Trulia User
    "Great neighborhood! Love it here just looking for something more private single family home on a dead end or curl de sac."
    2
    Flag
  • Trulia User
    "Very dog friendly. Lots of great places to walk with a dog. Many dog owners. The beach in Old Greenwich is a fun place to meet other dog owners and allow them to play."
    0
    Flag
  • Trulia User
    "I95 is the worst and the Merritt parkway are very difficult to commute on. Good luck if you need to commute during peak times. "
    1
    Flag
  • Sharonelkayam
    "Kid and pet friendly. Nice neighbors and well kept homes. The schools are great. Good area for walking and running. Near trains and shopping area in Old Greenwich. Beach is also a few minutes away."
    1
    Flag
  • Sandra
    "Halloween decoration is the best! Neighbors are very nice and safety, kids walk and play safety school is very good"
    0
    Flag
  • Barbara J.
    "Great public and private schools and safe neighborhoods. People are friendly and it’s a great place to raise kids. "
    5
    Flag
  • Charles M.
    "Pretty perfect. Train, buses, the parkway and 95. What’s left? Car pooling! and we have that as well."
    0
    Flag
  • Janette S. A.
    "Family oriented neighborhood with nice parks and sidewalk restaurants. Feel safe going for a walk and at the park. "
    0
    Flag
  • Diane L.
    "The police involvement with their community, the amazing schools and circular activities, the friendly neighborhood, so many other Positive things to say not enough time!"
    4
    Flag
  • Hercoles_silveir4
    "Grande offers better security public transport schools hospital than any other city that my family and I have ever lived in I think a good place to live would recommend to anyone that I like a safe and educated home"
    1
    Flag
  • Daniel C.
    "I need a car most of the time. There’s 2 buses line that serves the town, one takes you to the metro north station "
    0
    Flag
  • Trevor M.
    "Love living here!! It is beautiful,safe and fun. Tods point is amazing. Great schools and plenty of things to do!"
    0
    Flag
  • Leila
    "The is very. Nice friendly I like to live in Grreewich because is Quite and gentle I can walk to my dog in the nighttime no danger"
    5
    Flag
  • Lynn M.
    "Busy street traffic, leash mandatory , people drive by fast! Dogs being walked are friendly. People pick up their dog waste. It’s a plus!"
    1
    Flag
  • Allforsummer
    "I grew up in Glenville. It’s a very family oriented neighborhood. Local businesses are owned by neighbors. Kids can ride their bikes freely or take walks to Glenville Pizza. Great place to live! "
    0
    Flag
  • Katetaylor83
    "Yes - there are a number of places close by to walk your dogs. It’s not ideal, as there aren’t a lot of off leash options and the dog run is tiny and unusable. "
    3
    Flag
  • Ksziman
    "Strong sense of community and neighborly support and camaraderie. Folks generally look out for one another "
    3
    Flag
  • Stephanie
    "Yes there are lots of dogs. With lots of parks to walk dogs. Anyone who has a dog would be comfort in. "
    0
    Flag
  • Lynn M.
    "My area is not particularly family friendly. I live in the main avenue. Better suited to working person/s."
    2
    Flag
  • Lesliegodner
    "I’ve lived here for a year. It’s a great neighborhood. We have amazing restaurants and stores. Great for families and singles alike. "
    0
    Flag
  • Jesselynn G.
    "The elementary school fairs/carnivals, trick or treating, fireworks at the park nothing else in particular but overall a great neighborhood "
    0
    Flag
  • Mdandola
    "Lots of families in the area and great schools. The town has tons of wonderful programs, and there are great additional programs through YMCA and other organizations in town. The town party is awesome, as well."
    4
    Flag
  • Sarah G.
    "I reverse commute to North Haven—50 mikes away. I have zero traffic and can get to 95 quickly, so that’s a plus. "
    0
    Flag
  • Andrea T.
    "Is very safe has great schools clean streets is near most shops people respect each other I would love rents to be not as expensive forces people to move out "
    0
    Flag
  • Gissella E.
    "Safe area to live. Great school with a exceptional , espectacular kids activities and kids friendly and pleasure to live here and grow up your family. Good , good ,good "
    0
    Flag
  • Debtifrob
    "This community is as close as you can get to a home town like Father Knows Best or Andy Griffin. With. the exception of the high cost, it's a very warm, exclusive neighborhood with mansions & working class ppl. lots of celebrities move here bc if safety & school system. I was born here & living here 65yrs now. Downfall is the high housing, upside lots if culture & a few beaches, public pool & island a ferry brings you to."
    4
    Flag

LGBTQ Local Legal Protections

Frequently asked questions about 9 Frontier Rd

  • What is 9 Frontier Rd estimated to be worth?
    Trulia's estimated value for 9 Frontier Rd in Cos Cob, CT is $3,301,300.
  • What is the price history for 9 Frontier Rd?
    9 Frontier Rd in Cos Cob, CT last sold for $2,353,000 in August 2022.
  • Is Cos Cob a buyer's or seller's market?
    Cos Cob is currently a seller's market, based on recent for-sale activity.
  • What's the median sale price in Cos Cob?
    The median sale price in Cos Cob is $2.58M. That is up $150K from the prior month.
  • How big is the lot at 9 Frontier Rd?
    The lot at 9 Frontier Rd in Cos Cob, CT is about 1.2 acres.
  • Does 9 Frontier Rd have a garage?
    Yes, 9 Frontier Rd in Cos Cob, CT has a garage.

Explore by feature - Pet Friendly

32 pet-friendly rentals in Cos Cob, CT

Explore by feature - Garage

51 rentals with a garage in Cos Cob, CT

Explore by feature - Air Conditioning

115 rentals with air conditioning in Cos Cob, CT

Explore by feature - Pool

19 rentals with a pool in Cos Cob, CT

Explore by feature - Washer/dryer

96 rentals with a washer/dryer in Cos Cob, CT

Explore by feature - Outdoor Space

20 rentals with an outdoor space in Cos Cob, CT

Apartments for Rent

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Off Market Homes Near 9 Frontier Rd

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