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23 Underhill Ave

Oyster Bay, NY 11771

5 bd 2 ba Built 1974 Lot 9,983 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

YearBuildingLandTotal assessedTax paid
2024 $305 $321 $626 $15,347
2022 $305 $321 $626 $14,442
2021 $305 $321 $626 $14,165
2020 $294 $310 $604 $13,545
2019 $461 $703 $1,164 $12,730
2018 $461 $703 $1,164 $14,656
2016 $461 $703 $1,164 $13,230
2015 $491 $703 $1,194 $12,064
2014 $491 $703 $1,194 $11,336
2013 $541 $703 $1,244 $10,639
2011 $541 $703 $1,244 $9,828
2010 $560 $781 $1,341 $10,670
2009 $829 $781 $1,610 $10,412
2007 $829 $983 $1,812 $12,022

Property facts

Year built
1974
Property type
single_family
Stories
Beds
5
Baths
2
Living area
Lot size
9,983 sqft
ZIP code
11771
City
Oyster Bay
Street
Underhill Ave
Coordinates
40.87187, -73.53738

Frequently asked questions

When did 23 Underhill Ave last sell?
No public-record sale is on file for 23 Underhill Ave.
What is the current tax assessment for 23 Underhill Ave?
The most recent total assessment for 23 Underhill Ave (year 2024) is $626 with $15,347 in property tax.
When was 23 Underhill Ave built?
23 Underhill Ave was built in 1974.
How does 23 Underhill Ave compare to others on Underhill Ave?
We do not currently track other properties on Underhill Ave.
What are the property facts for 23 Underhill Ave?
23 Underhill Ave is a 5 bed, 2 bath, 9,983 sqft lot single_family.
Is 23 Underhill Ave a flip candidate?
No — 23 Underhill Ave does not appear in our flips dataset.
Is 23 Underhill Ave a tax-appeal candidate?
No — 23 Underhill Ave 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
-0.2%
Implied 1-yr
-0.8%
2026 Q2
$2.2M
2026 Q3
$2.2M
ZIP 11771 — Median Price History + Forecast

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