21 River Ave, Greenwich, CT 06830
OFF MARKET

21 River Ave
Greenwich, CT 06830

Byram
  • 2 Beds
  • 1 Bath
  • 1,260 sqft

$967,300

Trulia Estimate
as of Jun 10, 2026
Est. Refi. Payment $4,978/mo*
Refinance Your Home

$967,300

Trulia Estimate
as of Jun 10, 2026
Est. Refi. Payment $4,978/mo*
Refinance Your Home
2 Beds
1 Bath
1,260 sqft

Local Information

Map showing home location
© Google
-- mins to
Commute Destination

Description

"The sea is calling you!" Come "sea" this fully updated gem nestled among the seaside estates of Byram Shore Rd. Stroll down to Byram Shore Beach and Pool Park and spend sunny days relaxing by the shore. After a relaxing day at the beach..fire up the grill in your private backyard oasis and prepare dinner while friends gather around the gorgeous granite island in your gourmet kitchen! A chef's dream! Cool nights? No problem! Cozy up in front of the Living room fireplace! Need to work? The lower level walk out recreation room has just the right space for your home office! Need a little more space? The convenient walk up attic has great storage or expansion potential! This house has it all! Central a/c, short walk to train, shops and school. Don't wait..grab your slice of heaven in Greenwich and make 21 River Ave your home this summer!
This property is off market, which means it's not currently listed for sale or rent on Trulia. This may be different from what's available on other websites or public sources.

Home Highlights

Parking
Garage
Outdoor
No Info
A/C
Heating & Cooling
HOA
None
Price/Sqft
No Info
Listed
Less than a day ago

Home Details for 21 River Ave

Interior Features

Interior Details
BasementAtticNumber of Rooms: 5Ceiling Fan
Heating & Cooling
Heating: Forced Air, GasAir ConditioningCooling System: CentralHeating Fuel: Forced Air
Levels, Entrance, & Accessibility
Stories: 2
Appliances & Utilities
DishwasherDryerMicrowaveRefrigeratorWasher
Fireplace & Spa
Fireplace
Security
Security System

Exterior Features

Exterior Home Features
Roof: AsphaltExterior: Vinyl
Parking & Garage
GarageParking Space: 1Parking: Garage Attached

Property Information

Year Built
Year Built: 1944Year Updated: 1970
Property Type / Style
Property Type: Single Family HomeArchitecture: Cape Cod

Community

Units in Building: 1

Lot Information

Lot Area: 8276 sqft

Building

Fitness & Sports
Tennis Court

Price History for 21 River Ave

DatePriceEventSource
08/31/2020$615,000Sold
Smart MLS #170311537
07/07/2020$615,000PendingAgent Provided
07/02/2020$615,000Listed For SaleAgent Provided

Market trends in Greenwich

Last updated April 2026
Buyer'sMarketSeller'sMarket
Avg. sale price
$2.02M
$51.67KMoM
Sale-to-List Price
100.2%
0.1%MoM
Price per sq ft
$797
$11MoM
Available listings
191
45MoM
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Property Tax and Assessment

Year2025
Tax$5,148
Assessment$416,500
Home facts updated by county records

Homeowner tools

Estimated monthly rent$3,537/mo
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Homes for rent near 21 River Ave

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Comparable Sales for 21 River Ave

Address
Distance
Property Type
Sold Price
Sold Date
Bed
Bath
Sqft
5 Hervey St, Greenwich, CT
0.18
Single-Family Home
$925,000
11/21/25
3
1.5
1,519
114 Mead Avenue, Greenwich, CT
0.21
Single-Family Home
$950,000
11/18/25
3
2
1,387
15 Henry St, Greenwich, CT
0.55
Single-Family Home
$600,000
03/24/26
2
1.5
1,258
15 Central Avenue, Port Chester, NY
0.39
Single-Family Home
$450,000
07/18/25
3
2
1,300
49-51 Beech St, Port Chester, NY
0.30
Single-Family Home
$1,372,600
02/06/26
4
2
1,488
10 Prospect St W, Greenwich, CT
0.20
Single-Family Home
$1,255,000
05/28/26
4
2
1,784
95 Byram Rd, Greenwich, CT
0.96
Single-Family Home
$695,000
02/26/26
2
1
881
57 View St W, Greenwich, CT
0.93
Single-Family Home
$775,000
04/14/26
3
1
1,252
19 High St, Greenwich, CT
0.89
Single-Family Home
$870,000
10/02/25
3
1
1,135
9 Harbor Drive, Port Chester, NY
0.47
Single-Family Home
$1,600,000
10/15/25
2
3
2,857

Nearby homes

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Assigned Schools

These are the assigned schools for 21 River Ave.
View nearby schools on GreatSchools
The GreatSchools Rating compares schools on a variety of school quality indicators including test scores, college readiness, equity and more. Learn more.

Neighborhood Overview

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

What Locals Say about Byram

At least 1 Trulia users voted on each feature.

  • 100 % Say there's wildlife

  • 100 % Say it's dog friendly

  • 100 % Say they plan to stay for at least 5 years

  • 100 % Say people would walk alone at night

  • 100 % Say yards are well-kept

  • 100 % Say car is needed

  • 83 % Say neighbors are friendly

  • 67 % Say there's holiday spirit

  • 50 % Say it's walkable to restaurants

  • 50 % Say kids play outside

  • 33 % Say there are community events

  • 33 % Say streets are well-lit

  • 33 % Say it's walkable to grocery stores

Sourced by Trulia users. Learn more about our methodology.
  • Kellysgreensllc
    "There are good schools,parks,library here. Conveniently located near mass transit.Not to forget our beaches. Local restaurants "
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Homes for sale near 21 River Ave

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Off Market Homes Near 21 River Ave

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21 River Ave, Greenwich, CT 06830 is a 2 bedroom, 1 bathroom, 1,260 sqft single-family home built in 1944. 21 River Ave is located in Byram, Greenwich. This property is not currently available for sale. 21 River Ave was last sold on Aug 31, 2020 for $615,000. The current Trulia Estimate for 21 River Ave is $967,300.