$454,000
2 Beds
1 Bath
540 sqft (on 0.27 acres)
21 William St, Sparkill, NY 10976
Est. Refi. Payment $3,038/mo*
Refinance Your HomeCurrently Off Market - Sold Apr 23, 2021 for $330,000
Home Value
Trulia Estimate
$454KSince last month
$100 (0%)Since last year
Increased$26K (+6.2%)Since last sale
Increased$125K (+37.8%)Learn more about this home's value by checking out its Trulia Estimate, the value of nearby homes, and how much similar homes have sold for.
Trulia Estimate
The of this home's value increased by +52% in the last 10 years
| Month | Estimated value |
|---|---|
2026 | |
| August 2026 | $455K |
| August 2026 | $454K |
| July 2026 | $455K |
| June 2026 | $458K |
| May 2026 | $450K |
| April 2026 | $447K |
| March 2026 | $445K |
| February 2026 | $439K |
| January 2026 | $426K |
2025 | |
2024 | |
2023 | |
2022 | |
2021 | |
2020 | |
2019 | |
2018 | |
2017 | |
2016 | |
Comparable sales
These are recently sold homes that have a similar location or other similar features to this home, like bedrooms, bathrooms, and square footage. Get a sense of the expected prices in the area by viewing these homes.Address | Distance | Property Type | Sold Price | Sold Date | Bed | Bath | Sqft |
|---|---|---|---|---|---|---|---|
0.05 | Single-Family Home | $575,000 | 06/30/26 | 3 | 1.5 | 1,082 | |
0.36 | Single-Family Home | $620,000 | 01/30/26 | 3 | 1.5 | 936 | |
0.18 | Single-Family Home | $826,000 | 05/01/26 | 2 | 3 | 1,632 | |
0.15 | Single-Family Home | $725,000 | 12/09/25 | 4 | 2 | 1,567 | |
0.25 | Single-Family Home | $676,500 | 05/13/26 | 3 | 3 | 1,757 | |
0.36 | Single-Family Home | $715,000 | 05/20/26 | 4 | 2 | 1,160 | |
0.16 | Single-Family Home | $625,000 | 07/30/26 | 4 | 2.5 | 1,984 | |
0.41 | Single-Family Home | $499,000 | 04/06/26 | 1 | 2 | 880 | |
0.65 | Single-Family Home | $520,000 | 12/22/25 | 2 | 1 | 1,023 | |
0.98 | Single-Family Home | $490,000 | 11/21/25 | 3 | 1 | 961 |
Nearby home prices
Get a sense of expected prices in the area by checking the value of nearby homes.Address | Distance | Price | Bed | Bath | Sqft | Status |
|---|---|---|---|---|---|---|
0.05 | $575,000 | 3 | 1.5 | 1,082 | Recently Sold | |
0.11 | $719,000 | 3 | 1.5 | 1,608 | Off Market | |
0.15 | $725,000 | 4 | 2 | 1,567 | Recently Sold | |
0.15 | $690,000 | 4 | 3 | 2,650 | For Sale | |
0.15 | $685,000 | 3 | 1.5 | 1,327 | Off Market | |
0.16 | $625,000 | 4 | 2.5 | 1,984 | Recently Sold | |
0.18 | $826,000 | 2 | 3 | 1,632 | Recently Sold | |
0.21 | $819,600 | 3 | 1.5 | 2,414 | Off Market | |
0.19 | $579,000 | 3 | 2.5 | 1,644 | For Sale | |
0.22 | $605,000 | 3 | 1 | 912 | Off Market | |
0.25 | $676,500 | 3 | 3 | 1,757 | Recently Sold | |
0.22 | $664,900 | 4 | 2 | 1,806 | Off Market |
Local Information
- Map ViewExplore the area around 21 William St.
- Schools1 Preschool School2 Elementary Schools1 Middle School1 High School
- Shop & Eat
-- mins to
Home Highlights
Single-Family Home
Built in 1933
0.27 acre lot
540 sqft
$841/sqft
About this House
This single-family home is located at 21 William St, Sparkill, NY. 21 William St is in Sparkill, NY and in ZIP code 10976. This property has 2 bedrooms, 1 bathroom and approximately 540 sqft of floor space. This property has a lot size of 0.27 acres and was built in 1933.
21 William St, Sparkill, NY 10976 is a 2 bedroom, 1 bathroom, 540 sqft single-family home built in 1933. It last sold for $330,000 on Apr 23, 2021. This property is not currently displayed as for sale or rent on Trulia. The Trulia Estimate is $454,000, with a rent estimate of $2,418/month.
Home Details for 21 William St
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Levels, Entrance, & Accessibility Stories: 1 |
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Year Built Year Built: 1933 |
Property Type / Style Property Type: Single Family HomeArchitecture: Old Style |
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Exterior Home Features Exterior: Composition |
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Units in Building: 1 |
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Lot Area: 0.27 acres |
Price and Tax history
| Date | Event | Price |
|---|---|---|
Apr 23, 2021 Source: OneKey® MLS as distributed by MLS GRID #H6095573 | Sold | $330,000 |
Mar 8, 2021 Source: OneKey® MLS as distributed by MLS GRID #H6095573 | Pending | $325,000 |
Feb 21, 2021 Source: OneKey® MLS as distributed by MLS GRID #H6095573 | Listed For Sale | $325,000 |
| Year | Property tax | Tax assessment |
|---|---|---|
| 2025 | Unavailable | $266,541 |
Home facts updated by county records
Market trends in Sparkill
Last updated July 2026
Avg. sale price
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Sale-to-List Price
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Price per sq ft
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Around this home
What Locals Say about Sparkill
At least 10 Trulia users voted on each feature.
100 % Say it's dog friendly
94 % Say kids play outside
92 % Say it's quiet
92 % Say there's holiday spirit
85 % Say car is needed
80 % Say streets are well-lit
80 % Say people would walk alone at night
73 % Say yards are well-kept
71 % Say they plan to stay for at least 5 years
67 % Say there are sidewalks
65 % Say parking is easy
64 % Say it's walkable to restaurants
61 % Say there's wildlife
54 % Say neighbors are friendly
50 % Say it's walkable to grocery stores
33 % Say there are community events
Sourced by Trulia users. Learn more about our methodology.
LGBTQ Local Legal Protections
LGBTQ Local Legal Protections
Frequently asked questions about 21 William St
- What is 21 William St estimated to be worth?Trulia's estimated value for 21 William St in Sparkill, NY is $454,000.
- What is the price history for 21 William St?21 William St in Sparkill, NY last sold for $330,000 in April 2021.
- Is Sparkill a buyer's or seller's market?Sparkill is currently a balanced market, based on recent for-sale activity.
- What do residents say about Sparkill?Residents describe Sparkill, NY as dog-friendly, quiet, and well-kept. Most residents say you need a car. See recently sold homes in Sparkill, NY.
- How big is the lot at 21 William St?The lot at 21 William St in Sparkill, NY is about 0.27 acres (11,761 sq ft).
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Off Market Homes Near 21 William St
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