21 Knowles Ave
Westerly, RI 02891
- 3 Beds
- 2 Baths
- 1,814 sqft (on 0.35 acres)
$3,659,200
as of Aug 9, 2026
$3,659,200
as of Aug 9, 2026
3 Beds
2 Baths
1,814 sqft
(on 0.35 acres)
Local Information
-- mins to
Home Highlights
Property Type
Single-Family Home
Year Built
1969
Lot Size
0.35 acres
Living Area
1,814 sqft
Price/Sqft
$2,017
About this House
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.
21 Knowles Ave, Westerly, RI 02891 is a 3 bedroom, 2 bathroom, 1,814 sqft single-family home built in 1969. It last sold for $1,800,000 on Jul 31, 2020. It is currently off market. The Trulia Estimate is $3,659,200, with a rent estimate of $3,384/month.
Home Details for 21 Knowles Ave
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Heating & Cooling Heating: Baseboard, ElectricAir ConditioningHeating Fuel: Baseboard |
Levels, Entrance, & Accessibility Stories: 2Floors: Hardwood, Linoleum Vinyl |
Interior Details Number of Rooms: 7 |
Appliances & Utilities DishwasherRefrigerator |
Fireplace & Spa Fireplace |
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Exterior Home Features Roof: AsphaltDeckExterior: WoodPatioPorch |
Parking & Garage Parking Spaces: 4 |
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Year Built Year Built: 1969 |
Property Type / Style Property Type: Single Family HomeArchitecture: Contemporary |
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Units in Building: 1 |
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Lot Area: 0.35 acres |
Price History for 21 Knowles Ave
| Date | Price | Event | Source |
|---|---|---|---|
| 07/31/2020 | $1,800,000 | Sold | StateWide MLS RI #1250666 |
| 05/27/2020 | $1,950,000 | PriceChange | Agent Provided |
| 04/01/2020 | $2,149,000 | Listed For Sale | Agent Provided |
| 01/01/2020 | $2,299,000 | ListingRemoved | Agent Provided |
| 09/07/2019 | $2,299,000 | PriceChange | Agent Provided |
| 07/23/2019 | $2,388,000 | PriceChange | Agent Provided |
| 05/25/2019 | $2,588,000 | Listed For Sale | Agent Provided |
Market trends in Westerly
Last updated June 2026
Avg. sale price
$581K
$71.97KMoM
Sale-to-List Price
—
Price per sq ft
$329
$70MoM
Available listings
67
6MoM
Property Tax and Assessment
| Year | 2025 |
|---|---|
| Tax | $24,397 |
| Assessment | $3,431,300 |
Home facts updated by county records
Comparable Sales for 21 Knowles Ave
Address | Distance | Property Type | Sold Price | Sold Date | Bed | Bath | Sqft |
|---|---|---|---|---|---|---|---|
0.13 | Single-Family Home | $2,390,000 | 09/19/25 | 4 | 2 | 2,053 | |
0.04 | Single-Family Home | $3,300,000 | 09/10/25 | 3 | 3.5 | 1,895 | |
0.13 | Single-Family Home | $1,200,000 | 10/03/25 | 5 | 4 | 2,316 | |
0.18 | Single-Family Home | $3,300,000 | 11/03/25 | 5 | 3.5 | 2,396 | |
0.42 | Single-Family Home | $2,750,000 | 07/15/26 | 3 | 3 | 2,363 | |
0.34 | Single-Family Home | $2,900,000 | 03/27/26 | 4 | 3.5 | 2,431 | |
0.12 | Single-Family Home | $5,100,000 | 06/26/26 | 3 | 3.5 | 3,152 | |
0.22 | Single-Family Home | $1,850,000 | 12/12/25 | 2 | 1 | 551 | |
0.36 | Single-Family Home | $475,000 | 01/02/26 | 4 | 2 | 1,600 | |
0.50 | Single-Family Home | $2,850,000 | 09/09/25 | 4 | 3.5 | 3,210 |
Nearby homes
Get a sense of prices in the area by checking nearby homes.Assigned Schools
These are the assigned schools for 21 Knowles Ave.
What Locals Say about Westerly
At least 172 Trulia users voted on each feature.
86 % Say it's dog friendly
85 % Say car is needed
76 % Say parking is easy
71 % Say people would walk alone at night
69 % Say yards are well-kept
68 % Say it's walkable to restaurants
68 % Say there's holiday spirit
65 % Say streets are well-lit
64 % Say kids play outside
59 % Say there are sidewalks
58 % Say they plan to stay for at least 5 years
55 % Say neighbors are friendly
53 % Say it's walkable to grocery stores
52 % Say it's quiet
50 % Say there's wildlife
28 % Say there are community events
Sourced by Trulia users. Learn more about our methodology.
LGBTQ Local Legal Protections
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Apartments for Rent
Homes for sale near 21 Knowles Ave
Off Market Homes Near 21 Knowles Ave
Frequently asked questions about 21 Knowles Ave
- What is 21 Knowles Ave estimated to be worth?Trulia's estimated value for 21 Knowles Ave in Westerly, RI is $3,659,200.
- What is the price history for 21 Knowles Ave?21 Knowles Ave in Westerly, RI last sold for $1,800,000 in July 2020.
- Is Westerly a buyer's or seller's market?Westerly is currently a seller's market, based on recent for-sale activity.
- What's the median sale price in Westerly?The median sale price in Westerly is $581K. That is down $71.97K from the prior month.
- How big is the lot at 21 Knowles Ave?The lot at 21 Knowles Ave in Westerly, RI is about 0.35 acres (15,198 sq ft).
- Does 21 Knowles Ave have parking?Yes, 21 Knowles Ave in Westerly, RI has on-site parking.

