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857 Johnson Ave

Ronkonkoma, NY 11779

3 bd 1 ba Built 1939 Lot 20,909 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
2025 $21,900 $13,900 $35,800 $11,095
2024 $21,900 $13,900 $35,800 $10,366
2023 $21,900 $13,900 $35,800 $10,366
2022 $21,900 $13,900 $35,800 $10,320
2021 $21,900 $13,900 $35,800 $5,037
2020 $21,900 $13,900 $35,800 $9,684
2018 $18,900 $13,900 $32,800 $8,718
2017 $18,900 $13,900 $32,800 $8,637
2016 $18,900 $13,900 $32,800 $8,607
2015 $18,900 $13,900 $32,800 $9,024
2014 $18,900 $13,900 $32,800 $8,511
2013 $18,900 $13,900 $32,800 $7,159
2012 $18,900 $13,900 $32,800 $6,878
2011 $18,900 $13,900 $32,800 $6,664
2010 $18,900 $13,900 $32,800 $6,405
2008 $18,900 $13,900 $32,800 $6,077

Property facts

Year built
1939
Property type
single_family
Stories
Beds
3
Baths
1
Living area
Lot size
20,909 sqft
ZIP code
11779
City
Ronkonkoma
Street
Johnson Ave
Coordinates
40.80771, -73.12581

Frequently asked questions

When did 857 Johnson Ave last sell?
No public-record sale is on file for 857 Johnson Ave.
What is the current tax assessment for 857 Johnson Ave?
The most recent total assessment for 857 Johnson Ave (year 2025) is $35,800 with $11,095 in property tax.
When was 857 Johnson Ave built?
857 Johnson Ave was built in 1939.
How does 857 Johnson Ave compare to others on Johnson Ave?
We track 8 other properties on Johnson Ave. Browse the list under "Other properties on Johnson Ave" to compare beds, baths, and sale history.
What are the property facts for 857 Johnson Ave?
857 Johnson Ave is a 3 bed, 1 bath, 20,909 sqft lot single_family.
Is 857 Johnson Ave a flip candidate?
No — 857 Johnson Ave does not appear in our flips dataset.
Is 857 Johnson Ave a tax-appeal candidate?
No — 857 Johnson 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
+1.1%
Implied 1-yr
+4.3%
2026 Q3
$566.9K
2026 Q4
$572.5K
ZIP 11779 — Median Price History + Forecast

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