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21 Hillvale Rd

Syosset, NY 11791

3 bd 3 ba 2,174 sqft Built 1955 single_family
No recorded sales

Location

Timeline: Sale, Listing & Tax History

Recorded events

No recorded events

No sale or listing events are on file for this property.

Tax assessment history

YearBuildingLandTotal assessedTax paid
2024 $372 $322 $694 $20,025
2022 $372 $322 $694 $20,871
2021 $389 $336 $725 $19,331
2020 $380 $328 $708 $21,153
2019 $167 $842 $1,009 $19,323
2018 $167 $842 $1,009 $18,121
2016 $446 $842 $1,288 $19,289
2015 $446 $842 $1,288 $17,420
2014 $446 $842 $1,288 $16,139
2013 $532 $842 $1,374 $14,766
2011 $532 $842 $1,374 $13,242
2010 $519 $842 $1,361 $12,960
2009 $819 $842 $1,661 $13,308
2007 $845 $842 $1,687 $13,113

Property facts

Year built
1955
Property type
single_family
Stories
2
Beds
3
Baths
3
Living area
2,174 sqft
Lot size
ZIP code
11791
City
Syosset
Street
Hillvale Rd
Coordinates
40.78896, -73.50166

Comparable properties nearby

Block-level micro-comps

Same street, ±3 house numbers, sold in the last 24 months

Frequently asked questions

When did 21 Hillvale Rd last sell?
No public-record sale is on file for 21 Hillvale Rd.
What is the current tax assessment for 21 Hillvale Rd?
The most recent total assessment for 21 Hillvale Rd (year 2024) is $694 with $20,025 in property tax.
When was 21 Hillvale Rd built?
21 Hillvale Rd was built in 1955.
How does 21 Hillvale Rd compare to others on Hillvale Rd?
We track 8 other properties on Hillvale Rd. Browse the list under "Other properties on Hillvale Rd" to compare beds, baths, and sale history.
What are the property facts for 21 Hillvale Rd?
21 Hillvale Rd is a 3 bed, 3 bath, 2,174 sqft single_family.
Is 21 Hillvale Rd a flip candidate?
No — 21 Hillvale Rd does not appear in our flips dataset.
Is 21 Hillvale Rd a tax-appeal candidate?
No — 21 Hillvale Rd is not currently flagged as a tax-appeal candidate.

Forecast for this area

ZIP-area linear projection — not a per-property automated valuation
Quarterly trend
+2.9%
Implied 1-yr
+11.6%
2026 Q3
$1.84M
2026 Q4
$1.88M
ZIP 11791 — Median Price History + Forecast

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