1 Mouse Island, Groton, CT 06340
OFF MARKET

1 Mouse Island
Groton, CT 06340

Long Hill
  • 4 Beds
  • 1 Bath
  • 1,531 sqft (on 0.27 acres)

$995,500

Trulia Estimate
as of Jul 9, 2026
Est. Refi. Payment $6,439/mo*
Refinance Your Home

$995,500

Trulia Estimate
as of Jul 9, 2026
Est. Refi. Payment $6,439/mo*
Refinance Your Home
4 Beds
1 Bath
1,531 sqft
(on 0.27 acres)

Local Information

  • Map ViewExplore the area around 1 Mouse Island.
  • Schools1 Preschool School1 Elementary School1 Middle School1 High School
  • Shop & Eat
-- mins to
Commute Destination

Description

Always dreamed of owning a private island retreat? This is a once in a lifetime opportunity to own a piece of the legendary Mouse Island. A storybook location at the mouth of the Mystic River- just off the coast of Noank Village and the Morgan Point Lighthouse, with Groton Long Point to your west, Fishers Island to your south, and Ram Island to your east. This totally green off-the-grid island home will provide you the oasis retreat you’ve been seeking. Land is within sight and you are close to everything Mystic and Noank have to offer, while enjoying the privacy of an island accessible only by boat. Four bedrooms and lovely cottage furnishings, all in excellent condition. Panoramic water views from every room: the first floor is open plan, and includes a large family kitchen, dining area, living room with working fireplace, and full bathroom with shower. The second floor has four comfortable bedrooms, and sleeps eight. Shaded by trees with an east-facing porch for a sunrise coffee, and a west-facing porch for sunset cocktails. All furnishings are included (Adirondack chairs, appliances, generator, and household furniture), as well as an Eastern 18' skiff with Honda four stroke 50 horsepower motor for transport, exploring the harbor, trips up to Mystic, or hopping over to Abbott's or Ford's for a legendary seafood dinner. Lovingly cared for and in excellent condition it's ready to enjoy from day one! The pleasures of island living - watching egrets graze the tidal pools, toasting s’mores by the fire pit, and casting for striped bass off the back rock - are irresistible. This residence is a one of a kind find. Video -> https://rem.ax/420BbXS
1 Mouse Island, Groton, CT 06340 is a 4 bedroom, 1 bathroom, 1,531 sqft single-family home in Long Hill, built in 1939. It last sold for the $900,000 asking price on Jun 30, 2023. It is currently off market. The Trulia Estimate is $995,500, with a rent estimate of $2,908/month.

Home Highlights

Parking
No Info
Outdoor
Porch
A/C
Heating only
HOA
None
Price/Sqft
No Info
Listed
180+ days ago

Home Details for 1 Mouse Island

Interior Features

Interior Details
Basement: Crawl SpaceNumber of Rooms: 7Types of Rooms: Master Bedroom, Bedroom, Dining Room, Kitchen, Living Room
Beds & Baths
Number of Bedrooms: 4Number of Bathrooms: 1Number of Bathrooms (full): 1
Dimensions and Layout
Living Area: 1531 Square Feet
Appliances & Utilities
Appliances: Oven/Range, Refrigerator, Water Heater, Tankless Water HeaterRefrigerator
Heating & Cooling
Heating: None,Bottle GasNo CoolingAir Conditioning: NoneHas HeatingHeating Fuel: Bottle Gas
Fireplace & Spa
Number of Fireplaces: 1Has a Fireplace
Windows, Doors, Floors & Walls
Window: Thermopane Windows
View
Has a ViewView: Water

Exterior Features

Exterior Home Features
Roof: AsphaltPatio / Porch: PorchExterior: Stone WallFoundation: StoneNo Private Pool
Parking & Garage
No CarportNo GarageNo Attached GarageParking: Other
Frontage
WaterfrontWaterfront: WaterfrontOn Waterfront
Water & Sewer
Sewer: Other
Finished Area
Finished Area (above surface): 1531 Square Feet

Property Information

Year Built
Year Built: 1939
Property Type / Style
Property Type: ResidentialProperty Subtype: Single Family ResidenceArchitecture: Cottage
Building
Construction Materials: Vinyl SidingNot a New ConstructionDoes Not Include Home Warranty
Property Information
Parcel Number: 1959183

Price & Status

Price
List Price: $900,000
Status Change & Dates
Off Market Date: Sun Jun 18 2023Possession Timing: Negotiable

Active Status

MLS Status: Closed

Media

Location

Direction & Address
City: Groton
School Information
Elementary School: Per Board of EdHigh School: Per Board of Ed

Building

Building Area
Building Area: 1531 Square Feet

HOA

No HOA

Lot Information

Lot Area: 0.27 acres

Energy

Energy Efficiency Features: Windows

Miscellaneous

Mls Number: 170571939Attic: NoneWater ViewWater View: WaterAbove Grade Unfinished Area: 1531
Last check for updates: 1 day ago
Listed by Nassim Saad, (203) 641-7912
RE/MAX on the Bay, (860) 739-0888
Bought with: Mark Reyher, (203) 676-5909, Reyher Real Estate, (860) 526-5831
Source: Smart MLS, MLS#170571939

Price History for 1 Mouse Island

DatePriceEventSource
06/30/2023$900,000Sold
Smart MLS #170571939
06/19/2023$900,000ContingentSmart MLS #170571939
05/26/2023$900,000Listed For SaleSmart MLS #170571939
10/15/2018$794,900ListingRemovedAgent Provided
07/02/2018$794,900PriceChange
Agent Provided
07/02/2017$799,000PriceChange
Agent Provided
06/19/2017$855,000Listed For SaleAgent Provided
04/22/2004$465,000Sold
Smart MLS #E143023
05/13/1998$247,500Sold
Smart MLS #E79191

Market trends in Groton

Last updated May 2026
Buyer'sMarketSeller'sMarket
Avg. sale price
—
Sale-to-List Price
—
Price per sq ft
—
Available listings
68
10MoM
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Property Tax and Assessment

Year2025
Tax$10,479
Assessment$416,010
Home facts updated by county records

Comparable Sales for 1 Mouse Island

Address
Distance
Property Type
Sold Price
Sold Date
Bed
Bath
Sqft
129 Valley Road, Groton, CT
0.01
Single-Family Home
$385,000
08/22/25
3
2
1,504
110 Valley Road, Groton, CT
0.05
Single-Family Home
$390,000
03/20/26
3
1.5
1,810
109 Valley Road, Groton, CT
0.04
Single-Family Home
$405,000
12/23/25
3
1.5
1,288
411 Long Hill Road, Groton, CT
0.40
Single-Family Home
$280,000
01/16/26
3
1
1,310
58 Plymouth Avenue South, Groton, CT
0.48
Single-Family Home
$327,000
02/25/26
3
1
980
140 Laurelwood Road, Groton, CT
0.49
Single-Family Home
$343,000
01/06/26
3
1.5
1,372
11 Carol Court, Groton, CT
0.69
Single-Family Home
$305,000
06/22/26
3
1
1,238
84 Pamela Avenue, Groton, CT
0.81
Single-Family Home
$335,000
10/03/25
4
1
1,165
70 Lorraine Road, Groton, CT
0.93
Single-Family Home
$349,000
11/04/25
3
1
1,428
17 Ginger Drive, Groton, CT
0.89
Single-Family Home
$321,500
09/19/25
3
1
1,266

Nearby homes

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Assigned Schools

These are the assigned schools for 1 Mouse Island.
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The GreatSchools Rating compares schools on a variety of school quality indicators including test scores, college readiness, equity and more. Learn more.

Neighborhood Overview

Long Hill
See Local Highlights
Neighborhood stats provided by third party data sources.

What Locals Say about Long Hill

At least 17 Trulia users voted on each feature.

  • 84 % Say car is needed

  • 83 % Say parking is easy

  • 74 % Say there are sidewalks

  • 68 % Say it's dog friendly

  • 62 % Say there's wildlife

  • 61 % Say there's holiday spirit

  • 59 % Say it's walkable to grocery stores

  • 59 % Say people would walk alone at night

  • 58 % Say it's walkable to restaurants

  • 58 % Say it's quiet

  • 41 % Say streets are well-lit

  • 40 % Say kids play outside

  • 38 % Say yards are well-kept

  • 38 % Say they plan to stay for at least 5 years

  • 28 % Say neighbors are friendly

  • 12 % Say there are community events

Sourced by Trulia users. Learn more about our methodology.
  • Adrian P.
    "I have no idea. I don’t really pay attention to dogs. This area could use a better sidewalk system and better crosswalks."
    0
    Flag
  • Jackie
    "my community has great access to public transportation and the commute to most places is very short. very quiet and peaceful day and night"
    0
    Flag
  • Adrian P.
    "Connecticut drivers are very aggressive. They frequently run stop signs and don’t use turn signals. They cruise in the left lane and pass on the right. It is very frustrating."
    0
    Flag
  • Beaconledge
    "It’s a small mobile home park, with rented lots that the homes sit upon. Quiet, well taken care of neighborhood right in the heart of Groton Connecticut. "
    1
    Flag
  • Beaconledge
    "This is a quiet mobile home park, homes a a little close together with little yard space to maintain. "
    1
    Flag
  • Srobitaille
    "Right by the water, close to Mystic CT, New London, RI, beaches, parks. it's a nice community,clean I like the parks there's nice places to hike with a dog."
    1
    Flag
  • Adrian P.
    "It’s the submarine capitol of the world. Lots of mom and pop restaurants, bodegas and local bars. 2 casinos less than 20 minutes away."
    0
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  • Linda M.
    "I haven't actually lived in this neighborhood, but I have worked nearby and occasionally go to Bluff Point, which is in close proximity to this general area. Kids can walk to a very good middle school--Fitch, which is nice; or alternatively, Claude Chester Elem. School, which involves crossing a main road that I'm sure has crossing guards on duty. Thanks!"
    0
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Homes for sale near 1 Mouse Island

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Off Market Homes Near 1 Mouse Island

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IDX information is provided exclusively for personal, non-commercial use, and may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing. Information is deemed reliable but not guaranteed.