Google street view image for 21 Billow Rd, Old Saybrook, CT 06475

Off Market Apr 1996 for $142K

$805,282

Est. refi paymentEst. refi $937/mo

•

1.5 ba

•

1,663

sq ft

21 Billow Rd, Old Saybrook, CT 06475

About this home

21 Billow Rd is a 1,663 square foot house on a 3,920 square foot lot with 3 bedrooms and 1.5 bathrooms. - it last sold on April 29, 1996 for $142,500. Based on Redfin's Old Saybrook data, we estimate the home's value is $805,282.

Single-familyProperty Type

1938Year Built

3,920 sq ftLot Size

$484Est. Price/Sq.Ft.

Source:Public Records

Redfin Estimate

$805,282

$663K since sold in April 1996$2,000 since August

Recently sold homes
Estimate history
Homes for sale

This home's estimate is 37.1% lower than the average sale price ($1.28M) of 6 comparable homes.

SOLD JUN 18, 2026
$1,030,000
A
3 beds1.5 baths1,772 sq ft
37 Mohican Rd, Old Saybrook, CT 06475
SOLD JUL 10, 2026
$653,000
B
3 beds1.5 baths1,536 sq ft
13 Briarwood Dr, Old Saybrook, CT 06475
SOLD JUL 30, 2026
$1,049,900
C
4 beds2 baths1,566 sq ft
95 Middletown Ave, Old Saybrook, CT 06475
SOLD JUL 29, 2026
$950,000
D
3 beds2 baths1,459 sq ft
224 Salt Island Rd, Westbrook, CT 06498
SOLD AUG 13, 2026
$2,150,000
E
3 beds2.5 baths1,900 sq ft
420 Maple Ave, Old Saybrook, CT 06475
SOLD MAY 12, 2026
$1,849,000
F
3 beds2 baths1,652 sq ft
12 Toms Rd, Old Saybrook, CT 06475

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Earn from this home

Sell

$756,974

Est. take-home

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Est. cash available

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Market trends in 06475, CT

Last updated August 2026

Buyer's Market

Seller's Market

Balanced market

Sale-to-List Price

100.0%

+0.1% MoM

Median sale price

$694K

$36K MoM

Avg. days on market

60d

20 days MoM

Recently sold homes

4 MoM

New listings for sale

OPEN SAT, 11AM TO 1PM
$899,000
4 beds1.5 baths1,706 sq ft
30 Neptune Dr, Old Saybrook, CT 06475
OPEN FRI, 4PM TO 6PM
$799,900
4 beds3 baths2,496 sq ft
3 Anchorage Ln, Old Saybrook, CT 06475
COMING SOON
$1,380,000
5 beds3 baths2,969 sq ft
46 Fenwood Grove Rd, Old Saybrook, CT 06475
$789,900
2 beds3.5 baths1,565 sq ft
25 Sunset Rd #18, Old Saybrook, CT 06475
OPEN SUN, 11AM TO 1PM
$795,000
3 beds1 bath2,002 sq ft
5 Tudor Ct E, Old Saybrook, CT 06475
COMING SOON
$699,900
3 beds2 baths1,913 sq ft
6 Willard St, Old Saybrook, CT 06475
COMING SOON
$550,000
3 beds3 baths1,296 sq ft
61 Springbrook Rd, Old Saybrook, CT 06475
$2,200,000
4 beds3.5 baths2,734 sq ft
138 N Cove Rd, Old Saybrook, CT 06475
$1,550,000
4 beds3 baths3,188 sq ft
108 Maple Ave, Old Saybrook, CT 06475
$499,999
3 beds1 bath2,718 sq ft
35 School House Rd, Old Saybrook, CT 06475
See all

Provided by Redfin

Sale history for 21 Billow Rd

Year

Property tax

Land + Additions

Assessment*

2023

$6,438 (+1.9%)

$173,500 + $141,300

$314,800

2022

$6,321 (+0.1%)

$173,500 + $141,300

$314,800

2021

$6,312

$173,500 + $141,300

$314,800

2020

$6,312 (+1.5%)

$173,500 + $141,300

$314,800

2019

$6,217 (−3.0%)

$173,500 + $141,300

$314,800

2018

$6,407 (−0.3%)

$173,500 + $153,400

$326,900

2017

$6,427 (+2.1%)

$173,500 + $153,400

$326,900

2016

$6,296 (+4.1%)

$173,500 + $153,400

$326,900

2014

$6,048 (−16.6%)

$173,500 + $153,400

$326,900

2011

$7,253

$286,200 + $191,000

$477,200

Tax history for 21 Billow Rd

Year

Property tax

Land + Additions

Assessment*

2023

$6,438 (+1.9%)

$173,500 + $141,300

$314,800

2022

$6,321 (+0.1%)

$173,500 + $141,300

$314,800

2021

$6,312

$173,500 + $141,300

$314,800

2020

$6,312 (+1.5%)

$173,500 + $141,300

$314,800

2019

$6,217 (−3.0%)

$173,500 + $141,300

$314,800

2018

$6,407 (−0.3%)

$173,500 + $153,400

$326,900

2017

$6,427 (+2.1%)

$173,500 + $153,400

$326,900

2016

$6,296 (+4.1%)

$173,500 + $153,400

$326,900

2014

$6,048 (−16.6%)

$173,500 + $153,400

$326,900

2011

$7,253

$286,200 + $191,000

$477,200

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

Property details

Interior

Bathroom Information
# of Full Baths: 1
# of 1/2 Baths: 1

Heating & Cooling
Heating Type: Forced Hot Water

Room Information
# of Rooms: 5

Exterior

Exterior Information
Physical Condition: Average
Exterior Wall: Vinyl
Roof Shape Type: Gable

Property Information
Living Sq. Ft: 1,663
Gross Sq. Ft: 3,100
# of Units: 1
# of Stories: 2

Lot Information
# of Buildings: 1
Land Sq. Ft: 3,920
Municipality Name: OLD SAYBROOK
Acres: 0.09
Zoning Code: A
State Use Description: 1-FAMILY RESIDENCE

Financial

Assessor Information
Assessment Year: 2023

Public facts

Beds: 3
Baths: 1.5
Sq. Ft.: 1,663
Stories: 2.0
Lot Size: 3,920 square feet
Style: Single Family Residential
Year Built: 1938
Year Renovated: —
County: —
APN: 1022766

Home facts updated by county records on Jul 13, 2023

Around this home

Schools

Kathleen E. Goodwin School

Public PreK-4 • Assigned • 1.6mi

6/10

Old Saybrook Middle School

Public 5-8 • Assigned • 2.0mi

8/10

Old Saybrook Senior High School

Public 9-12 • Assigned • 1.9mi

8/10

Provided by GreatSchools

Lifestyle

Provided by Walk Score and Local Logic

Climate risks

4/10 Flood Factor

Estimated 10-16% chance of a flood reaching the building in the next 30 years

1/10 Fire Factor

Unlikely to be in a wildfire in next 30 years

5/10 Heat Factor

7 days above 92° expected this year, 16 days in 30 years

8/10 Wind Factor

80% chance of strong winds in next 30 years

4/10 Air Factor

4 unhealthy days expected this year, 5 days in 30 years

Provided by First Street

Historical weather

Old Saybrook, CT • 06475

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 hours in June and 4.6 hours in December, which is comparable to the U.S. average for solar exposure.

9 hrs

4.6 hrs

JuneDecember

Provided by Shadowmap

Estimated sale price

$766,000 – $927,000

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Nearby similar homes

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New listings for sale in 06475

OPEN SAT, 11AM TO 1PM

$899,000

4 beds1.5 baths1,706 sq ft

30 Neptune Dr, Old Saybrook, CT 06475

OPEN FRI, 4PM TO 6PM

$799,900

4 beds3 baths2,496 sq ft

3 Anchorage Ln, Old Saybrook, CT 06475

COMING SOON

$1,380,000

5 beds3 baths2,969 sq ft

46 Fenwood Grove Rd, Old Saybrook, CT 06475

$789,900

2 beds3.5 baths1,565 sq ft

25 Sunset Rd #18, Old Saybrook, CT 06475

OPEN SUN, 11AM TO 1PM

$795,000

3 beds1 bath2,002 sq ft

5 Tudor Ct E, Old Saybrook, CT 06475

COMING SOON

$699,900

3 beds2 baths1,913 sq ft

6 Willard St, Old Saybrook, CT 06475

COMING SOON

$550,000

3 beds3 baths1,296 sq ft

61 Springbrook Rd, Old Saybrook, CT 06475

$2,200,000

4 beds3.5 baths2,734 sq ft

138 N Cove Rd, Old Saybrook, CT 06475

$1,550,000

4 beds3 baths3,188 sq ft

108 Maple Ave, Old Saybrook, CT 06475

Home values near 21 Billow Rd

Data from public records.

Address	Redfin Estimate
10 Billow Rd, Old Saybrook, CT 4 Beds \| 6.5 Baths \| 5852 Sq. Ft.	$3,906,410
11 Billow Rd, Old Saybrook, CT 3 Beds \| 2 Baths \| 1248 Sq. Ft.	$724,084

Address	Redfin Estimate
19 Billow Rd, Old Saybrook, CT 4 Beds \| 1 Baths \| 1512 Sq. Ft.	$698,429
7 Billow Rd, Old Saybrook, CT 4 Beds \| 2 Baths \| 1872 Sq. Ft.	$1,035,668

Address	Redfin Estimate
15 Billow Rd, Old Saybrook, CT 5 Beds \| 2 Baths \| 1800 Sq. Ft.	$874,355
27 Billow Rd, Old Saybrook, CT 4 Beds \| 2 Baths \| 1353 Sq. Ft.	$1,285,516

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