OFF MARKET

Off Market Jul 2020 for $1.8M

$3,289,800

•

1,814

sq ft

21 Knowles Ave, Westerly, RI 02891

About this home

There is a magical feeling of complete relaxation and serenity that comes with owning this Weekapaug property. Be inside, be outside, simply be present at 21 Knowles Avenue and you will have a sense of the sea and life at the beach. This modern style home is architect designed and built to capture sunlight, sea breezes, and ocean views. Watch the moods of the Atlantic Ocean, see the glimmer of Montauk or Watch Hill Lighthouse, and scope out ocean conditions for fishing, boating, and surfing…. all from the deck. This year-round capable home is move in ready and could be yours to enjoy soon. Summer 2020 beckons - imagine a daily dose of beach, a cruise along the shore, a community loop to explore, and a backyard full of perennials. Life in Weekapaug Fire District includes access to two community beaches, the ability to consider joining the Weekapaug Tennis Club and the Weekapaug Yacht Club. Floor plans available. Virtual showings or Facetime showings available.

Single-familyProperty Type

1969Year Built

0.35 acresLot Size

$1,814Est. Price/Sq.Ft.

4 spacesParking

Listed by DeeDee Buffum • Mott & Chace Sotheby's Intl.

Listed by Robin Knisley • Mott & Chace Sotheby's Intl.

Bought with Robin Knisley • Mott & Chace Sotheby's Intl.

Redfin checked: 2 minutes ago

•Source:RIS #1250666

Redfin Estimate

$3,289,800

$1.5M since sold in July 2020$58K since August

Recently sold homes
Estimate history
Homes for sale

This home's estimate is 376.6% higher than the average sale price ($690K) of 6 comparable homes.

SOLD JUN 17, 2026
$647,400
A
3 beds2 baths1,752 sq ft
5 Sunnyside Dr, Westerly, RI 02891
SOLD JUN 24, 2026
$680,000
B
3 beds2.5 baths2,138 sq ft
51 Quannacut Rd, Westerly, RI 02891
SOLD AUG 28, 2026
$599,000
C
3 beds2 baths1,752 sq ft
8 Sparrow Dr, Westerly, RI 02891
SOLD NOV 14, 2025
$799,999
D
3 beds2 baths1,412 sq ft
288 Shore Rd, Westerly, RI 02891
SOLD NOV 10, 2025
$680,000
E
3 beds2 baths2,024 sq ft
9 Lofty Heights Rd, Westerly, RI 02891
SOLD MAR 2, 2026
$735,000
F
3 beds2 baths1,344 sq ft
26 Charlene Ave, Westerly, RI 02891

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Earn from this home

Sell

$1,832,881

Est. take-home

List your home with Redfin and save $32,898

Rent

$2,943/mo

Redfin rental estimate

List your home for rent

Market trends in 02891, RI

Last updated August 2026

Buyer's Market

Seller's Market

Seller's market

Sale-to-List Price

99.4%

1.3% MoM

Median sale price

$735K

$110K MoM

Avg. days on market

25d

1 days MoM

Recently sold homes

6 MoM

New listings for sale

NEW 9 HRS AGO
$599,000
4 beds2 baths1,718 sq ft
215 Canal St, Westerly, RI 02891
COMING SOON
$735,000
2 beds2 baths2,059 sq ft
222 Post Rd Unit 3A, Westerly, RI 02891
$4,395,000
4 beds3 baths2,352 sq ft
377 Atlantic Ave, Westerly, RI 02891
$11,250,000
7 beds6 baths5,814 sq ft
4 Arraquat Rd, Westerly, RI 02891
$6,950,000
4 beds4.5 baths3,867 sq ft
111 Avondale Rd, Westerly, RI 02891
OPEN OCT 3, 11AM TO 1PM
$529,000
4 beds2 baths3,816 sq ft
160 160 Westerly Bradford Rd, Westerly, RI 02891
OPEN SAT, 12PM TO 1:30PM
$549,900
2 beds1 bath1,789 sq ft
3 Pauline St, Westerly, RI 02891
$2,300,000
3 beds1.5 baths1,596 sq ft
12 Brightman Way, Westerly, RI 02891
$349,000
2 beds1 bath528 sq ft
88 Old Post Rd #6, Westerly, RI 02891
FOR SALE BY OWNER
$525,000
3 beds2 baths1,352 sq ft
30 Cosmo St, Westerly, RI 02891
See all

Provided by Redfin

Sale history for 21 Knowles Ave

Date

Event

Price

RIS #1250666

Jul 31, 2020

Sold

$1,800,000

$992/sq ft

Jul 11, 2020

Pending

—

Jun 1, 2020

Contingent

—

May 27, 2020

Price Changed

$1,950,000

$1,075/sq ft

Apr 1, 2020

Listed

$2,149,000

$1,185/sq ft

RIS #1230281

Dec 31, 2019

Listing Removed

—

Sep 7, 2019

Price Changed

$2,299,000

$1,267/sq ft

Jul 23, 2019

Listed

$2,388,000

$1,316/sq ft

RIS #1224668

Jul 23, 2019

Listing Removed

—

May 25, 2019

Listed

$2,588,000

$1,427/sq ft

Year

Property tax

Land + Additions

Assessment*

2025

$24,397 (+15.2%)

$2,843,800 + $587,500

$3,431,300

2024

$21,170 (+2.0%)

$1,847,000 + $311,000

$2,158,000

2023

$20,760 (+0.6%)

$1,847,000 + $311,000

$2,158,000

2022

$20,630 (+2.8%)

$1,847,000 + $311,000

$2,158,000

2021

$20,066 (+4.0%)

$1,525,700 + $216,100

$1,741,800

2020

$19,288 (+1.0%)

$1,525,700 + $179,700

$1,705,400

2019

$19,100 (+16.8%)

$1,525,700 + $179,700

$1,705,400

2018

$16,346 (+2.5%)

$1,204,500 + $171,400

$1,375,900

2017

$15,947 (−0.8%)

$1,204,500 + $171,400

$1,375,900

2016

$16,071 (−10.1%)

$1,204,500 + $171,400

$1,375,900

2015

$17,867 (+1.7%)

$1,475,700 + $175,600

$1,651,300

2014

$17,570 (+1.0%)

$1,475,700 + $175,600

$1,651,300

2013

$17,388 (−0.4%)

$1,475,700 + $175,600

$1,651,300

2012

$17,452

$1,638,900 + $152,900

$1,791,800

Tax history for 21 Knowles Ave

Year

Property tax

Land + Additions

Assessment*

2025

$24,397 (+15.2%)

$2,843,800 + $587,500

$3,431,300

2024

$21,170 (+2.0%)

$1,847,000 + $311,000

$2,158,000

2023

$20,760 (+0.6%)

$1,847,000 + $311,000

$2,158,000

2022

$20,630 (+2.8%)

$1,847,000 + $311,000

$2,158,000

2021

$20,066 (+4.0%)

$1,525,700 + $216,100

$1,741,800

2020

$19,288 (+1.0%)

$1,525,700 + $179,700

$1,705,400

2019

$19,100 (+16.8%)

$1,525,700 + $179,700

$1,705,400

2018

$16,346 (+2.5%)

$1,204,500 + $171,400

$1,375,900

2017

$15,947 (−0.8%)

$1,204,500 + $171,400

$1,375,900

2016

$16,071 (−10.1%)

$1,204,500 + $171,400

$1,375,900

2015

$17,867 (+1.7%)

$1,475,700 + $175,600

$1,651,300

2014

$17,570 (+1.0%)

$1,475,700 + $175,600

$1,651,300

2013

$17,388 (−0.4%)

$1,475,700 + $175,600

$1,651,300

2012

$17,452

$1,638,900 + $152,900

$1,791,800

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

Public record

Public record
Zoning

Beds

Baths

Stories

Lot width

—

Lot depth

—

Lot size

0.35 Acres

Year renovated

—

Sq. Ft.

2,016

Year built

1969

Style

Single Family Residential

County

Washington County

APN

468569

Parking Spaces

—

Basement

—

Accessible

—

HOA Dues

—

Garage

—

Features

—

Last updated by owner on Jun 22, 2026.

MDR-30

Medium-Density Residential 30 District

The Medium-Density Residential 20 Zoning Districts are generally intended for single-family neighborhoods adjacent to high-density areas. These zoning districts are designed to conform to existing development patterns rather than encourage major expansions beyond defined neighborhoods. Most areas within this district are connected to municipal water but not to municipal sewers. Specific provision is provided for alternative residential development of certain property of substantial size in the R-30 Zoning District.

Permitted uses

Include but are not limited to:

Housing-Group
Housing-Single unit
Park & open space
Water related

Property details

Parking

Parking
Features: No Garage
# of Parking (Total): 4

Interior

Virtual Tour

Bathroom Information
# of Full Bathrooms: 2

Room Information
# of Rooms (Total): 7
Has Basement
Basement Information: Exterior Entry, Full, Interior Entry, Unfinished

Fireplace Information
Has Fireplace
# of Fireplaces: 2
Features: Masonry

Equipment
Appliances: Dishwasher, Electric Water Heater, Oven, Range, Refrigerator

Interior Features
Flooring: Hardwood, Vinyl
Other Features: Attic, Cathedral Ceiling(s), Tub Shower, Central Vacuum, Wood Burning Stove

Exterior

Building Information
Stories: 2
Stories (Total): 2
Construction Details: Wood Siding

Exterior Features
Exterior Features: Deck, Porch
Patio And Porch Features: Deck, Porch, Screened

Lot Information
Lot Size Area: 15,200
Lot Size Acres: 0.3489
Waterfront Features: Beach Access, Water Access, Walk to Water
Frontage Length: 76
Zoning: MDR-30

Property Information
Has View
Above Grade Finished Area: 1,814
Foundation Details: Concrete Perimeter

Financial

Assessments and Fees
Assessed Value: $1,705,400

Tax Information
Annual Tax Amount: $19,100
Tax Year: 2019

Utilities

Utility Information
Electric: 200+ Amp Service
Sewer: Septic Tank
Water Source: Public

Heating & Cooling
Has Heating
Heating: Baseboard, Electric, Wood

Location

Community Information
Community Features: Marina, Near Hospital, Near Schools, Recreation Area, Shopping, Tennis Court(s)

Public facts

Beds: 3
Baths: 2.0
Sq. Ft.: 2,016
Stories: 2.0
Lot Size: 0.35 acres
Style: Single Family Residential
Year Built: 1969
Year Renovated: —
County: Washington County
APN: 468569

Home facts updated by county records on Jun 22, 2026

Around this home

Schools

Dunn's Corners School

Public K-4 • Assigned • 1.4mi

6/10

Westerly Middle School

Public 5-8 • Assigned • 1.9mi

7/10

Westerly High School

Public 9-12 • Assigned • 4.4mi

7/10

Provided by GreatSchools

Lifestyle

Provided by Walk Score and Local Logic

Climate risks

1/10 Flood Factor

Minimal risk 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

6/10 Heat Factor

7 days above 89° expected this year, 18 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, 6 days in 30 years

Provided by First Street

Historical weather

Westerly, RI • 02891

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

$3.13M – $3.78M

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OPEN OCT 3, 11AM TO 1PM

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OPEN SAT, 12PM TO 1:30PM

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Home values near 21 Knowles Ave

Data from public records.

Address	Redfin Estimate
23 Knowles Avenue, Westerly, RI 4 Beds \| 3.5 Baths \| 3818 Sq. Ft.	$4,457,355
23 Knowles Avenue, Westerly, RI 4 Beds \| 3.5 Baths \| 3818 Sq. Ft.	$4,587,646

Address	Redfin Estimate
20 Knowles Avenue, Westerly, RI 4 Beds \| 3 Baths \| 1764 Sq. Ft.	$2,831,481
19 Knowles Avenue, Westerly, RI 5 Beds \| 6.5 Baths \| 5235 Sq. Ft.	$5,684,239

Address	Redfin Estimate
19 Knowles Avenue, Westerly, RI 5 Beds \| 3.5 Baths \| 3394 Sq. Ft.	$5,131,442
20 Knowles Avenue, Westerly, RI 4 Beds \| 3 Baths \| 1764 Sq. Ft.	$2,886,067

Property information provided by RIS when last listed in 2020. This data may not match . Learn more.

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GreatSchools Ratings provided by GreatSchools.org.

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About this home

Redfin Estimate

Earn from this home

Market trends in 02891, RI

Sale history for 21 Knowles Ave

Tax history for 21 Knowles Ave

Public record

Property details

Around this home

Schools

Lifestyle

Climate risks

Historical weather

Sun exposure

Nearby similar homes

New listings for sale in 02891

Home values near 21 Knowles Ave

More real estate resources