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840 Peconic St, Ronkonkoma, NY 11779 Property Records

Suffolk County and Islip Town property record for 840 Peconic St, Ronkonkoma, NY 11779

Property Summary

Property TypeDuplex
Details1,860 sqft · built 1975
Lot Size0.13 acres (5,663 sqft)
OwnerCompany Name on File
Last Sale$142,000 (Dec 1998)
Deeds & MortgagesJan 2019 Transfer
Jan 2019 Transfer
Flood ZoneZone X (minimal risk)
APN472889 86.-3-16

Property Details

APN / Parcel Number

Primary APN472889 86.-3-16
Alternative APNs
  • 0500-086.00-03.00-016.000
  • 288908600000030160000000
  • 472800186910
  • 058635

Interior

Units2 Units
Building Area1,860 sqft Living Area
1st Floor Area1,068 sqft
Basement Area792 sqft

Exterior

Year BuiltBuilt 1975
Effective Year BuiltEffective 1975
Architectural StyleDuplex Single
Lot Area5,663 sqft (0.13 acres)
Lot Dimensions100 ft deep x 60 ft wide

Location & Zoning

Account Number058635
Street Address840 PECONIC ST
CityRONKONKOMA
StateNY
Zip11779-6521
Property CategoryResidential
Property TypeResidential > Multi-Unit > Duplex
Local Zoning CodeA
Legal DescriptionX2243572Y210828 T027H00000000
Legal Block6000
Legal Lot Number300
JurisdictionSUFFOLK NY
Township / Civil DivisionISLIP
Census Block Group4
Census Block4011
Census Tract146618

Owner

840 Peconic St, a duplex, is owned by a company that acquired it in April 2003.

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

Owner of RecordCompany Name on File
Mailing Address2212 POND RD, RONKONKOMA, NY 11779-7229
Owner TypeCompany
VestingBorrower in Default

Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.

Deeds, Mortgages & Sale History

DateDocument
Jan 22, 2019Quit Claim Deed, Transfer
Quitclaim
Jan 22, 2019Quit Claim Deed, Transfer
Quitclaim

Assessor's Deed Record

Deed NamesName on Deed
Last SaleDec 15, 1998 · Amount on File
Deed SaleDec 15, 1998 · Amount on File
Deed Book / Page11934 / 56
Last Transfer DateApr 29, 2003
Transfer Doc0122620818
Record UpdatedOct 29, 2026

January 2019: Quit Claim Deed, Transfer

Document TypeQuit Claim Deed
JurisdictionSUFFOLK NY
Recording DateJan 22, 2019
Property Address840 PECONIC ST, RONKONKOMA, NY 11779-6521
Document Number0129970662
Book / Page012997 / 000662
Instrument DateDec 28, 2018
Transaction TypeTransfer
Record UpdatedFeb 13, 2019

Transaction

Tax$0.00
Additional
  • Quitclaim
  • Multiple Parcels

Transferred From (Grantor/Seller)

NameVerified Name

Transferred To (Grantee/Buyer)

NameVerified Name
Address804 PECONIC ST RONKONKOMA NY 11779, RONKONKOMA, NY 11779

January 2019: Quit Claim Deed, Transfer

Document TypeQuit Claim Deed
JurisdictionSUFFOLK NY
Recording DateJan 22, 2019
Property Address840 PECONIC ST, RONKONKOMA, NY 11779-6521
Document Number0129970663
Book / Page012997 / 000663
Instrument DateDec 28, 2018
Transaction TypeTransfer
Record UpdatedFeb 13, 2019

Transaction

Tax$0.00
Additional
  • Quitclaim
  • Multiple Parcels

Transferred From (Grantor/Seller)

NameVerified Name

Transferred To (Grantee/Buyer)

NameVerified Name
Address840 PECONIC ST RONKONKOMA NY 117796521, RONKONKOMA, NY 11779-6521

Tax Assessment & Valuation

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

Property Jurisdictions

TypeName
StateNew York
CountySuffolk County
County SubdivisionIslip Town
Unified School DistrictConnetquot Central School District (PK - 12)

Tax Bill & Assessment History

YearAssessed ValueAssessed Market Value
2025$38,500 Land $7,800 Building $30,700
2024$542,253 (+2.54%) Land $109,859 Building $432,394
2023$38,500 Land $7,800 Building $30,700$528,846 Land $107,143 Building $421,703

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

FEMA maps place 840 Peconic St in Zone X, an area of minimal flood risk.

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

FEMA Flood ZoneZone X
minimal risk
Flood Insurance RequirementNot required
lenders may require it
Nearby Flood Policies2 in force

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

The area around 840 Peconic St has no burnable land within ember reach, so its wildfire risk is not rated.

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

Wildfire RiskNot rated
no burnable land within ember reach

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 SystemSUFFOLK COUNTY WATER AUTHORITY
serves 1,100,000 people · EPA ID NY5110526
Water SourceGroundwater
Last State InspectionJan 2024
Lead1 ppb (2025–2027)
action level 15 ppb

Violations Reported to EPA

Water QualityAsbestos
resolved · Jul 2020
Treatment and ProcedureNone
last 10 years
Monitoring and ReportingNone
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 221 locations within half a mile, as of December 31, 2025

ProviderMax Down / Up (Mbps)
Optimum
Fiber · Cable		8,000 / 8,000
Verizon
Fiber · Fixed Wireless in parts of the area		2,300 / 2,300
T-Mobile
Fixed Wireless		100 / 20

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