21 Calam Avenue
Ossining, NY 10562
Spring Valley
3 Beds
2 Baths
1,308 sqft
3 Beds
2 Baths
1,308 sqft
Local Information
- Map ViewExplore the area around 21 Calam Avenue.
- Schools1 Preschool School4 Elementary Schools1 Middle School1 High School
- Shop & Eat
-- mins to
Home Highlights
Property Type
Single-Family Home
Year Built
1922
Living Area
1,308 sqft
Price/Sqft
$574
Parking
Garage
About this House
Welcome to 21 Calam Avenue! Picture yourself unwinding on your front porch with your morning coffee. This charming Bungalow, a true example of 1920s craftsmanship, is a treasured piece of Ossining's architectural history. This is A Sears, Roebuck and Co. home and is one of 102 homes originally built in Ossining between 1908 and 1939. This home truly has it all, featuring a convenient main floor bedroom and full bath with radiant heated floor—so practical! You'll love the updated eat-in kitchen and formal dining room, perfect for hosting Thanksgiving this year. The spacious living room invites you to binge-watch your favorite shows and create lasting memories with friends and family.
Head upstairs to find two generous bedrooms and another full bath. And here's the best part: you can beat the heat with 2-zone ductless air-conditioning that’s both quiet and efficient.
The basement offers endless possibilities. Whether you need storage, a laundry area, or a great finished space currently set up as an office (153 SF), it’s all there without affecting your living space.
Now, let’s discuss the great outdoors: a fully fenced yard and a 1-car garage provide ample space for your vehicles with an attached shed space for storage. The lot, sized at .16 acres, has plenty of room for a fun game of frisbee, a picnic, swings—the options are limitless. Imagine setting up a fire pit to roast marshmallows, watch fireflies, or just gaze up at the stars.
The versatile stone patio with retaining wall create an inviting space for alfresco dining, just steps away from the kitchen.
Head upstairs to find two generous bedrooms and another full bath. And here's the best part: you can beat the heat with 2-zone ductless air-conditioning that’s both quiet and efficient.
The basement offers endless possibilities. Whether you need storage, a laundry area, or a great finished space currently set up as an office (153 SF), it’s all there without affecting your living space.
Now, let’s discuss the great outdoors: a fully fenced yard and a 1-car garage provide ample space for your vehicles with an attached shed space for storage. The lot, sized at .16 acres, has plenty of room for a fun game of frisbee, a picnic, swings—the options are limitless. Imagine setting up a fire pit to roast marshmallows, watch fireflies, or just gaze up at the stars.
The versatile stone patio with retaining wall create an inviting space for alfresco dining, just steps away from the kitchen.
21 Calam Avenue, Ossining, NY 10562 is a 3 bedroom, 2 bathroom, 1,308 sqft single-family home in Spring Valley, built in 1922. It last sold for $700,000 on Jul 1, 2025 (21% above the $579,000 asking price). It is currently off market. The Trulia Estimate is $750,700, with a rent estimate of $3,937/month.
Home Details for 21 Calam Avenue
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Interior Details Basement: Full,Partially FinishedNumber of Rooms: 7 |
Beds & Baths Number of Bedrooms: 3Number of Bathrooms: 2Number of Bathrooms (full): 2 |
Dimensions and Layout Living Area: 1308 Square Feet |
Appliances & Utilities Utilities: Electricity Connected, Natural Gas Connected, Sewer Connected, Trash Collection Public, Water ConnectedAppliances: Dishwasher, Dryer, Gas Range, Refrigerator, WasherDishwasherDryerLaundry: In BasementRefrigeratorWasher |
Heating & Cooling Heating: Baseboard,RadiantHas CoolingAir Conditioning: DuctlessHas HeatingHeating Fuel: Baseboard |
Fireplace & Spa No FireplaceNo Spa |
Gas & Electric Has Electric on Property |
Windows, Doors, Floors & Walls Flooring: Carpet, Hardwood |
Levels, Entrance, & Accessibility Levels: TwoFloors: Carpet, Hardwood |
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Exterior Home Features Patio / Porch: Covered, Patio, PorchFencing: Back Yard, Fenced, PerimeterFoundation: OtherNo Private Pool |
Parking & Garage Number of Garage Spaces: 1Number of Covered Spaces: 1No CarportHas a GarageHas Open ParkingParking Spaces: 4Parking: Driveway,Garage |
Water & Sewer Sewer: Public Sewer |
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Cumulative Days on Market: 15 |
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Year Built Year Built: 1922 |
Property Type / Style Property Type: ResidentialProperty Subtype: Single Family Residence, ResidentialArchitecture: Bungalow |
Building Construction Materials: OtherNot Attached Property |
Property Information Not Included in Sale: Freezer, Dining Room light fixtureIncluded in Sale: Range, Dishwasher, Refrigerator, Washer, Dryer, Light Fixtures, Shades/BlindsParcel Number: 420308901600000000008200004 |
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Price List Price: $579,000 |
Status Change & Dates Off Market Date: Fri Apr 25 2025 |
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MLS Status: Sold |
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Direction & Address City: Ossining |
School Information Elementary School: Contact AgentJr High / Middle School: Anne M Dorner Middle SchoolHigh School: Ossining High SchoolHigh School District: Ossining |
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Building Area Building Area: 1461 Square Feet |
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Not Senior Community |
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No HOA |
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Lot Area: 6970 sqft |
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Special Conditions: None |
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Listing Agreement Type: Exclusive Right To Sell |
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BasementMls Number: 844351Attic: Scuttle, UnfinishedShowing Requirements: Appointment Only, Showing Service |
Last check for updates: about 24 hours ago
Listed by Carol Marrone, (914) 419-4000
Christie's Int. Real Estate, (914) 200-1515
Matthew Marrone, (914) 263-5878
Christie's Int. Real Estate, (914) 200-1515
Bought with: Dalia H. Valdes, (914) 772-8002, Julia B Fee Sothebys Int. Rlty, (914) 967-4600
Source: OneKey® MLS as distributed by MLS GRID, MLS#844351
Price History for 21 Calam Avenue
| Date | Price | Event | Source |
|---|---|---|---|
| 07/01/2025 | $700,000 | Sold | OneKey® MLS as distributed by MLS GRID #844351 |
| 04/25/2025 | $579,000 | Pending | OneKey® MLS as distributed by MLS GRID #844351 |
| 04/10/2025 | $579,000 | Listed For Sale | OneKey® MLS as distributed by MLS GRID #844351 |
| 11/19/2018 | $420,000 | Sold | OneKey® MLS as distributed by MLS GRID #H4838771 |
| 09/11/2018 | $399,000 | Pending | Agent Provided |
| 08/17/2018 | $399,000 | Listed For Sale | Agent Provided |
Market trends in Ossining
Last updated June 2026
Avg. sale price
—
Sale-to-List Price
—
Price per sq ft
—
Available listings
60
9MoM
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Property Tax and Assessment
| Year | 2025 |
|---|---|
| Tax | |
| Assessment | $553,100 |
Home facts updated by county records
Comparable Sales for 21 Calam Avenue
Address | Distance | Property Type | Sold Price | Sold Date | Bed | Bath | Sqft |
|---|---|---|---|---|---|---|---|
0.06 | Single-Family Home | $660,000 | 06/30/26 | 3 | 1.5 | 1,328 | |
0.03 | Single-Family Home | $620,000 | 06/17/26 | 3 | 1.5 | 1,356 | |
0.03 | Single-Family Home | $577,700 | 11/14/25 | 4 | 2 | 1,488 | |
0.16 | Single-Family Home | $700,500 | 06/04/26 | 3 | 1.5 | 1,636 | |
0.26 | Single-Family Home | $715,000 | 01/16/26 | 3 | 1.5 | 1,444 | |
0.21 | Single-Family Home | $705,000 | 12/30/25 | 3 | 3 | 1,164 | |
0.08 | Single-Family Home | $586,000 | 10/17/25 | 2 | 2 | 1,046 | |
0.31 | Single-Family Home | $600,000 | 06/25/26 | 3 | 2 | 1,520 | |
0.31 | Single-Family Home | $555,000 | 12/11/25 | 3 | 1.5 | 1,264 | |
0.39 | Single-Family Home | $630,000 | 12/09/25 | 3 | 1.5 | 1,362 |
Nearby homes
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SOLDNOV 14, 2025Compass Greater NY, LLC
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SOLDJUN 30, 2026Houlihan Lawrence Inc.
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Assigned Schools
These are the assigned schools for 21 Calam Avenue.
- Anne M Dorner Middle School
- 6-8
- Public
- 1031 Students
6/10GreatSchools RatingParent Rating Averagepues académicamente es buena escuela, pero socialmente es malísimaOther Review5y ago - Brookside School
- 1-2
- Public
- 673 Students
NAGreatSchools RatingParent Rating AverageStaff/teachers are great . teachers cares about kids future. They have great programs and after school programsOther Review10y ago - Claremont School
- 2-4
- Public
- 732 Students
5/10GreatSchools RatingParent Rating AverageGreat school. Best town for diversity and equity.Parent Review4y ago - Ossining High School
- 9-12
- Public
- 1580 Students
4/10GreatSchools RatingParent Rating AverageGreat Schools uses high school level statistics to evaluate schools. This type of analysis fails to capture complexity. Ossining has great schools but averages don’t capture a multimodal distribution of student outcomes. Instead of a normal distribution Ossining has two humps caused by a large number of English as a second language learners. The high school is possibly the top science HS in the country (look it up). The statistics on this site have harmed property values in our district and have caused great harm to our community.Parent Review2y ago - Park School
- PK-K
- Public
- 572 Students
NAGreatSchools RatingParent Rating AverageBest pre and kindergarten school in the area. Great teachers and great programs. No homework which isn't that great. Music, physical education, art classes are great. My two kids went to park elementary school. In the pandemic time they provide great distance learning service and first public elementary school to open in person in the county.Parent Review5y ago - Roosevelt School
- 5
- Public
- 374 Students
5/10GreatSchools RatingParent Rating AverageGreat school. Best town for diversity and equity.Parent Review4y ago 
Check out schools near 21 Calam Avenue.
Neighborhood Overview
Neighborhood stats provided by third party data sources.
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0.34 ACRESListing by: Houlihan Lawrence Inc.
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Based on information submitted to the MLS GRID as of 2026-07-31 16:43:02 PDT All data is obtained from various sources and may not have been verified by broker or MLS GRID. Supplied Open House Information is subject to change without notice. All information should be independently reviewed and verified for accuracy. Properties may or may not be listed by the office/agent presenting the information. Some IDX listings have been excluded from this website. Click here for more information