Off market aug 2015 for $790K

$1,642,120

Est. refi paymentEst. refi $5,181/mo

•

2,475

sq ft

31 Dolphin Rd, Groton, CT 06340

About this home

Single-familyProperty Type

2007Year Built

0.5 acresLot Size

$663Est. Price/Sq.Ft.

2 car garageParking

Listed by ET Fox • Coldwell Banker Realty

Bought with Byron Lazine • William Pitt Sotheby's Int'l

Source:Smart MLS #E10052611

Redfin Estimate

$1,642,120

$852K since sold in August 2015$105K since October

Recently sold homes
Estimate history
Homes for sale

This home's estimate is 76.4% higher than the average sale price ($931K) of 6 comparable homes.

SOLD SEP 15, 2026
$1,350,000
A
3 beds2.5 baths3,091 sq ft
65 Prospect Hill Rd, Groton, CT 06340
SOLD AUG 25, 2026
$782,000
B
4 beds2.5 baths2,332 sq ft
66 Clipper Ct, Mystic, CT 06355
SOLD SEP 22, 2026
$935,000
C
4 beds2.5 baths2,471 sq ft
41 Ocean View Ave, Mystic, CT 06355
BOUGHT WITH REDFIN OCT 21, 2026
$832,000
D
4 beds3.5 baths2,729 sq ft
38 Groton Long Point Rd, Groton, CT 06340
SOLD AUG 14, 2026
$739,000
E
3 beds2.5 baths2,202 sq ft
19 Topsail Ln, Mystic, CT 06355
SOLD APR 8, 2026
$948,000
F
4 beds2.5 baths2,748 sq ft
70 Prospect Hill Rd, Groton, CT 06340

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Earn from this home

Sell

$1,069,778

Est. take-home

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Refinance

Est. cash available

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Rent

$3,660/mo

Redfin rental estimate

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Market trends in 06340, CT

Last updated October 2026

Buyer's Market

Seller's Market

Seller's market

Sale-to-list price

102.9%

+0.6% MoM

Median sale price

$349K

$25K MoM

Avg. days on market

27d

1 days MoM

Recently sold homes

5 MoM

New listings for sale

$389,000
4 beds3 baths1,584 sq ft
151 Hynes Ave, Groton, CT 06340
COMING SOON
$649,900
3 beds2.5 baths2,118 sq ft
2 Fulton Dr, Groton, CT 06340
$99,900
2 beds2 baths1,015 sq ft
91 Buddington Rd Lot 45, Groton, CT 06340
$274,900
2 beds1.5 baths1,204 sq ft
128 Meridian St #209, Groton, CT 06340
COMING SOON
$499,000
3 beds2 baths1,670 sq ft
15 Stonecrest Rd, Groton, CT 06340
$100,000
3 beds2 baths1,188 sq ft
91 Buddington Rd Lot 43, Groton, CT 06340
$230,000
2 beds1 bath969 sq ft
292 Meridian St Unit I, Groton, CT 06340
SHORT SALE
$349,000
2 beds1 bath1,372 sq ft
170 Meridian St, Groton, CT 06340
$465,000
2 beds2.5 baths1,500 sq ft
1154 Poquonnock Rd #3, Groton, CT 06340
$409,000
2 beds2 baths1,200 sq ft
1154 Poquonnock Rd #2, Groton, CT 06340
See all

Provided by Redfin

Sale history for 31 Dolphin Rd

Date

Event

Price

Smart MLS #E10052611

Aug 31, 2015

Sold

$790,000

$319/sq ft

Jun 25, 2015

Listing Removed

—

Jun 5, 2015

Listed

$915,000

$370/sq ft

Smart MLS #E279506

Nov 24, 2014

Listing Removed

—

Sep 8, 2014

Listed

$950,000

$384/sq ft

Smart MLS #E276562

Jul 5, 2014

Listing Removed

—

May 30, 2014

Listed

$950,000

$384/sq ft

Smart MLS #E199455

Nov 13, 2006

Listed

$949,000

$383/sq ft

Smart MLS #E173394

Nov 23, 2005

Listed

$725,000

$293/sq ft

Public Records

Sep 16, 2004

Sold

$625,000

$253/sq ft

Smart MLS #E147951

Jun 30, 2004

Listed

$625,000

$253/sq ft

Year

Property tax

Land + Additions

Assessment*

2022

$12,694 (−5.1%)

$222,810 + $356,020

$578,830

2021

$13,371 (+1.2%)

$253,190 + $255,010

$508,200

2020

$13,213 (+4.9%)

$253,190 + $255,010

$508,200

2019

$12,598 (+1.4%)

$253,190 + $255,010

$508,200

2018

$12,427 (+2.3%)

$253,190 + $253,820

$507,010

2017

$12,153 (−4.6%)

$253,190 + $253,820

$507,010

2016

$12,736 (+10.8%)

$272,930 + $304,920

$577,850

2014

$11,495 (−1.6%)

$272,930 + $282,800

$555,730

2011

$11,684

$272,930 + $282,800

$555,730

Tax history for 31 Dolphin Rd

Year

Property tax

Land + Additions

Assessment*

2022

$12,694 (−5.1%)

$222,810 + $356,020

$578,830

2021

$13,371 (+1.2%)

$253,190 + $255,010

$508,200

2020

$13,213 (+4.9%)

$253,190 + $255,010

$508,200

2019

$12,598 (+1.4%)

$253,190 + $255,010

$508,200

2018

$12,427 (+2.3%)

$253,190 + $253,820

$507,010

2017

$12,153 (−4.6%)

$253,190 + $253,820

$507,010

2016

$12,736 (+10.8%)

$272,930 + $304,920

$577,850

2014

$11,495 (−1.6%)

$272,930 + $282,800

$555,730

2011

$11,684

$272,930 + $282,800

$555,730

*Taxable value of land and structures on it ("additions") is determined regularly by local assessors and does not affect market price.

Public record

Beds

Baths

3.5

Stories

Lot width

—

Lot depth

—

Lot size

0.51 Acres

Year renovated

2006

Sq. Ft.

2,475

Year built

1959

Style

Single Family Residential

County

New London County

APN

1955563

Parking Spaces

—

Basement

—

Accessible

—

HOA Dues

—

Garage

—

Features

—

Last updated by owner on Jul 14, 2023.

Property details

Parking

Garage Information
Garage & Parking: Attached Garage
Garages Number: 2

Interior

Interior Information
Total Rooms: 7
Laundry Room Location: First Floor
Interior Features: Cable - Available, Auto Garage Door Opener, Open Floor Plan
In-Law Apartment: No
Fireplaces Total: 2
Cooling System: Ceiling Fans, Central Air
Appliances Included: Dishwasher, Disposal, Gas Range, Gas Cooktop, Range Hood, Subzero, Washer

Bathroom Information
# of Baths (Full): 3
# of Baths (Half): 1

Bedroom Information
Beds Total: 4

Room Information
Rooms Additional: Laundry Room
Room Count: 9
Basement Description: Concrete Floor, Fully Finished, Full, Liveable Space

Exterior

Exterior Features
Exterior Siding: Cedar, Shingle
Exterior Features: Deck, Patio, Wrap Around Deck

Lot Information
Lot Description: Corner Lot, Level Lot, Open Lot

Building Information
Color: natural

Property Information
Waterfront Description: Access, Association Required, Beach, Beach Rights, Dock or Mooring, L. I. Sound Frontage, View
Property Type: Single Family For Sale
Driveway Type: Asphalt, Paved

Financial

Assessments Information
Assessed Value: $555,730

Rental Information
Lease Purchase YN: No

Utilities

Utility Information
Water Source: Public Water Connected
Sewage System: Public Sewer Connected
Hot Water Description: Oil
Heat Type: Baseboard
Heat Fuel Type: Oil, Propane
Fuel Tank Location: In Basement
Energy Features: Thermopane Windows
Electric Amperage: 200

Location

HOA Information
Association Amenities: Playground/Tot Lot, Tennis Courts

School Information
Middle Jr High School: PBOE
Intermediate School: PBOE
High School: Fitch Senior
Elementary School: PBOE

Location Information
State: Connecticut
Nearby Amenities: Playground/Tot Lot, Tennis Courts
Directions: Route 1 or 215 to Groton Long Point Road, right on Mumford Cove Road, left on Colony, right on Bass to Neptune, house on corner of Neptune and Dolphin
County: New London

Public facts

Beds: 3
Baths: 3.5
Sq. Ft.: 2,475
Stories: 2.0
Lot Size: 0.51 acres
Style: Single Family Residential
Year Built: 1959
Year Renovated: 2006
County: New London County
APN: 1955563

Home facts updated by county records on Jul 14, 2023

Around this home

Schools

K - 12
Preschool & daycare

Mystic River Magnet School

Public PreK-5 • Assigned • 1.8mi

4/10

Groton Middle School

Public 6-8 • Assigned • 1.4mi

5/10

Fitch Senior High School

Public 9-12 • Assigned • 1.2mi

7/10

Provided by GreatSchools

Lifestyle

Provided by Walk Score and Local Logic

Historical weather

Groton, CT • 06340

Average low and high temperatures (°F)

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Sun exposure

In this area, properties receive around 9.1 hours in June and 4.6 hours in December, which is comparable to the U.S. average for solar exposure.

9.1 hrs

4.6 hrs

JuneDecember

Provided by Shadowmap

Estimated sale price

$1.56M – $1.89M

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New listings for sale in 06340

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COMING SOON

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COMING SOON

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Covered back porch • Mature trees • Hiking trails

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SHORT SALE

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Home values near 31 Dolphin Rd

Data from public records.

Address	Redfin Estimate
32 Dolphin Rd, Groton, CT 3 Beds \| 2 Baths \| 1830 Sq. Ft.	$895,980
87 Neptune Dr, Groton, CT 6 Beds \| 3.5 Baths \| 3009 Sq. Ft.	$2,187,059
99 Neptune Dr, Groton, CT 4 Beds \| 2 Baths \| 1768 Sq. Ft.	$2,077,083
134 Anchorage Cir, Groton, CT 4 Beds \| 2 Baths \| 2707 Sq. Ft.	$801,171
52 Neptune Dr, Groton, CT 4 Beds \| 3.5 Baths \| 4072 Sq. Ft.	$1,346,486
77 Balsam Rd, Groton, CT 4 Beds \| 5.5 Baths \| 3467 Sq. Ft.	$1,489,016
37 Marlin Dr, Groton, CT 4 Beds \| 2.5 Baths \| 3120 Sq. Ft.	$1,283,358

Address	Redfin Estimate
18 Dolphin Rd, Groton, CT 4 Beds \| 4 Baths \| 3603 Sq. Ft.	$1,395,754
53 Neptune Dr, Groton, CT 4 Beds \| 4.5 Baths \| 3080 Sq. Ft.	$3,528,087
40 Marlin Dr, Groton, CT 4 Beds \| 2.5 Baths \| 2240 Sq. Ft.	$839,494
16 Nautilus Rd, Groton, CT 4 Beds \| 4 Baths \| 3436 Sq. Ft.	$1,188,312
72 Marlin Dr, Groton, CT 5 Beds \| 3 Baths \| 3614 Sq. Ft.	$1,026,849
71 Marlin Dr, Groton, CT 3 Beds \| 3 Baths \| 2882 Sq. Ft.	$1,182,128
82 Balsam Rd, Groton, CT 3 Beds \| 2 Baths \| 1404 Sq. Ft.	$756,103

Address	Redfin Estimate
19 Dolphin Rd, Groton, CT 4 Beds \| 3 Baths \| 2600 Sq. Ft.	$746,132
109 Neptune Dr, Groton, CT 3 Beds \| 2.5 Baths \| 1352 Sq. Ft.	$2,104,092
30 Marlin Dr, Groton, CT 4 Beds \| 3 Baths \| 3453 Sq. Ft.	$1,270,611
17 Nautilus Rd, Groton, CT 3 Beds \| 2.5 Baths \| 1909 Sq. Ft.	$939,776
50 Marlin Dr, Groton, CT 3 Beds \| 1.5 Baths \| 1771 Sq. Ft.	$767,191
55 Marlin Dr, Groton, CT 3 Beds \| 2.5 Baths \| 2663 Sq. Ft.	$1,285,500
41 Neptune Dr, Groton, CT 4 Beds \| 2.5 Baths \| 3729 Sq. Ft.	$2,225,520

Property information provided by Smart MLS when last listed in 2015. This data may not match . Learn more.

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About this home

Redfin Estimate

Earn from this home

Market trends in 06340, CT

Sale history for 31 Dolphin Rd

Tax history for 31 Dolphin Rd

Public record

Property details

Around this home

Schools

Lifestyle

Historical weather

Sun exposure

Nearby similar homes

New listings for sale in 06340

Home values near 31 Dolphin Rd

More real estate resources