717 Johnson Ave, Ronkonkoma, NY 11779 Property Records

Suffolk County and Islip Town property record for 717 Johnson Ave, Ronkonkoma, NY 11779

Property Summary

Property Type	Single Family Home
Details	1,008 sqft · built 1952
Lot Size	0.35 acres (15,246 sqft)
Owner	2 Individual Names on Record
Last Sale	$415,000 (Jun 2023)
Tax Bill	$9,051 (2024)
Deeds & Mortgages	Jun 2023 Sale & Mortgage Nov 2017 Foreclosure
Flood Zone	Zone X (minimal risk)
APN	`472889 62.-1-97`

Property Details

APN / Parcel Number

Primary APN	`472889 62.-1-97`
Alternative APNs	`0500-062.00-01.00-097.000` `288906200000010970000000` `472800143780` `545480`

Interior

Building Area	1,008 sqft Living Area
1st Floor Area	672 sqft

Exterior

Year Built	Built 1952
Effective Year Built	Effective 1952
Lot Area	15,246 sqft (0.35 acres)
Lot Width	55 ft Width

Location & Zoning

Account Number	545480
Street Address	717 JOHNSON AVE
City	RONKONKOMA
State	NY
Zip	11779-6138
Property Category	Residential
Property Type	Residential > Single Family > Home
Local Zoning Code	A
Legal Description	X2239833Y212766 T014H00000000
Legal Subdivision	MAP LAKE HILLS ACREAGE UNIT F
Legal Block	2000
Legal Lot Number	100
Jurisdiction	SUFFOLK NY
Township / Civil Division	ISLIP
Census Block Group	2
Census Block	2021
Census Tract	145808

Owner

Source: Suffolk County and Islip Town records, as of October 21, 2026

Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.

Owner of Record	2 Individual Names on Record
Mailing Address	717 JOHNSON AVE, RONKONKOMA, NY 11779-6138
Occupancy	Owner Occupied
Owner Type	Individual

Deeds, Mortgages & Sale History

Date	Document
Jun 15, 2023	Deed, Transfer · Stand-Alone First Mortgage CLIFFCO INC
Nov 28, 2017	Trustee's Deed, Foreclosure WEBTITLE AGENCY

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Sale	Jun 15, 2023 · Amount on Record
Deed Sale	Jun 15, 2023 · Amount on Record
Prior Sale	Nov 28, 2017 · Amount on Record
Deed Book / Page	13205 / 981
Prior Transfer Date	Oct 3, 2017
Prior Transfer Doc	0129390762
Record Updated	Oct 29, 2026

June 2023: Deed, Transfer

Document Type	Deed
Jurisdiction	SUFFOLK NY
Recording Date	Jun 15, 2023
Property Address	717 JOHNSON AVE, RONKONKOMA, NY 11779-6138
Document Number	0132050981
Book / Page	13205 / 981
Instrument Date	Mar 31, 2023
Transaction Type	Transfer
Record Updated	Feb 20, 2024
Title Company	FIRST AMERICAN TITLE

Transaction

Amount	Amount Recorded
Downpayment	Downpayment on Record
Loan-to-Value (LTV)	LTV on Record
Tax	$0.00
Amount Accuracy	Full Amount Stated
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	23 CENTER ST, HICKSVILLE, NY 11801-3111

Mortgage

Document Number	0023513716
Date	Jun 15, 2023
Instrument	23513/716

Lender

Name	CLIFFCO INC

Agreement

Type	Stand-Alone First Mortgage
Amount	Amount Recorded

November 2017: Trustee's Deed, Foreclosure

Document Type	Trustee's Deed
Jurisdiction	SUFFOLK NY
Recording Date	Nov 28, 2017
Property Address	717 JOHNSON AVE, RONKONKOMA, NY 11779-6138
Document Number	0129390762
Book / Page	012939 / 000762
Instrument Date	Oct 3, 2017
Transaction Type	Foreclosure
Record Updated	Jan 3, 2018
Title Company	WEBTITLE AGENCY

Transaction

Amount	Amount Recorded
Tax	$2.00
Amount Accuracy	Confirmed
Additional	Lis Pendens

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Company
Address	500 PLANO PKWY CARROLLTON TX 75010, CARROLLTON, TX 75010
Investor	Possibly a Property Investor

Tax Assessment & Valuation

Source: Suffolk County and Islip Town assessment roll, as of August 11, 2026

Property Jurisdictions

Type	Name
State	New York
County	Suffolk County
County Subdivision	Islip Town
Unified School District	Connetquot Central School District (PK - 12)

Tax Bill & Assessment History

Year	Tax Bill	Assessed Value	Assessed Market Value
2025		$31,000 (-) Land $12,000 Building $19,000	$436,620 (-) Land $169,014 Building $267,606
2024	$9,051.00		$436,620 (+2.54%) Land $169,014 Building $267,606
2023		$31,000 (-) Land $12,000 Building $19,000	$425,824 (+13.74%) Land $164,835 Building $260,989
2022		$31,000 Land $12,000 Building $19,000	$374,397 Land $144,928 Building $229,469

Assessed value and assessed market value are set for property tax purposes, not market price estimates; both are a fraction of this property's market value.

Flood

Source: FEMA National Flood Hazard Layer, effective September 18, 2026 · OpenFEMA NFIP redacted claims and policies, as of September 2026

FEMA Flood Zone	Zone X minimal risk
Flood Insurance Requirement	Not required lenders may require it
Nearby Flood Policies	3 in force
Nearby Flood Claims	2 (2011–2014)
Claims Outside the SFHA	2 of 2
Most Recent Claim	Aug 2014 · rainfall accumulation

Values are read at the parcel center point; flood claims are located to the census block group, not this parcel; lenders make the official flood determination.

Wildfire

Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024

Wildfire Risk	Low lower than 98% of the US · lower than 97.9% of New York
Wildfire Likelihood	Under 0.01% annual chance
Exposure	Direct burnable vegetation

Values cover an area roughly 900 ft across, not the parcel itself; insurers use their own ratings.

Drinking Water

Source: EPA Safe Drinking Water Information System, as of September 2026

Water System	SUFFOLK COUNTY WATER AUTHORITY serves 1,100,000 people · EPA ID NY5110526
Water Source	Groundwater
Last State Inspection	Jan 2024
Lead	1 ppb (2025–2027) action level 15 ppb

Violations Reported to EPA

Water Quality	Asbestos resolved · Jul 2020
Treatment and Procedure	None last 10 years
Monitoring and Reporting	None last 3 years

Results are for the whole water system, not water tested at this address; lead at the tap also depends on the building's own pipes.

Internet Providers

Source: FCC Broadband Data Collection, based on 310 locations within half a mile, as of December 31, 2025

Provider	Max Down / Up (Mbps)
Optimum Fiber · Cable	8,000 / 8,000
Verizon Fiber	2,300 / 2,300

Cell Coverage

5G (outdoors only) and 4G LTE

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