421 Mill River Rd
Oyster Bay, NY 11771
4 bd 3 ba Built 1928 Lot 45,651 sqft 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
| Year | Building | Land | Total assessed | Tax paid |
|---|---|---|---|---|
| 2024 | $343 | $617 | $960 | $19,141 |
| 2023 | $343 | $617 | $960 | $19,760 |
| 2022 | $343 | $617 | $960 | $18,558 |
| 2021 | $343 | $617 | $960 | $18,392 |
| 2020 | $340 | $612 | $952 | $18,003 |
| 2019 | $1 | $1,400 | $1,401 | $16,043 |
| 2018 | $1 | $1,400 | $1,401 | $14,085 |
| 2016 | $1 | $1,400 | $1,401 | $13,021 |
| 2015 | $204 | $1,729 | $1,933 | $12,345 |
| 2014 | $204 | $1,729 | $1,933 | $15,320 |
| 2013 | $236 | $1,995 | $2,231 | $14,399 |
| 2011 | $236 | $1,995 | $2,231 | $13,270 |
| 2010 | $192 | $1,995 | $2,187 | $14,185 |
| 2009 | $910 | $1,995 | $2,905 | $14,645 |
| 2007 | $894 | $1,995 | $2,889 | $14,251 |
Property facts
Year built
1928
Property type
single_family
Stories
—
Beds
4
Baths
3
Living area
—
Lot size
45,651 sqft
ZIP code
11771
City
Oyster Bay
Street
Mill River Rd
Coordinates
40.84475, -73.54064
Block-level micro-comps
Same street, ±3 house numbers, sold in the last 24 monthsFrequently asked questions
When did 421 Mill River Rd last sell?
No public-record sale is on file for 421 Mill River Rd.
What is the current tax assessment for 421 Mill River Rd?
The most recent total assessment for 421 Mill River Rd (year 2024) is $960 with $19,141 in property tax.
When was 421 Mill River Rd built?
421 Mill River Rd was built in 1928.
How does 421 Mill River Rd compare to others on Mill River Rd?
We track 8 other properties on Mill River Rd. Browse the list under "Other properties on Mill River Rd" to compare beds, baths, and sale history.
What are the property facts for 421 Mill River Rd?
421 Mill River Rd is a 4 bed, 3 bath, 45,651 sqft lot single_family.
Is 421 Mill River Rd a flip candidate?
No — 421 Mill River Rd does not appear in our flips dataset.
Is 421 Mill River Rd a tax-appeal candidate?
No — 421 Mill River Rd is not currently flagged as a tax-appeal candidate.
Forecast for this area
ZIP-area linear projection — not a per-property automated valuationQuarterly trend
-0.2%
Implied 1-yr
-0.8%
2026 Q2
$2.2M
2026 Q3
$2.2M
ZIP 11771 — Median Price History + Forecast
Explore nearby
Geography
Other properties on Mill River Rd