Suffolk County and Islip Town property record for 845 Johnson Ave, Ronkonkoma, NY 11779
| Property Type | Duplex |
|---|---|
| Details | 2,260 sqft · built 1992 |
| Lot Size | 0.5 acres (21,780 sqft) |
| Owner | Individual Name on Record |
| Deeds & Mortgages | May 2019 Sale |
| Flood Zone | Zone X (minimal risk) |
| APN | 472889 62.-2-29.1 |
| Primary APN | 472889 62.-2-29.1 |
|---|---|
| Alternative APNs |
|
| Units | 2 Units |
|---|---|
| Building Area | 2,260 sqft Living Area |
| 1st Floor Area | 936 sqft |
| Year Built | Built 1992 |
|---|---|
| Effective Year Built | Effective 1992 |
| Architectural Style | Duplex Single |
| Lot Area | 21,780 sqft (0.5 acres) |
| Lot Width | 174 ft Width |
| Garage Type | Attached |
| Garage Area | 256 sqft |
| Account Number | 108382 |
|---|---|
| Street Address | 845 JOHNSON AVE |
| City | RONKONKOMA |
| State | NY |
| Zip | 11779-6085 |
| Property Category | Residential |
| Property Type | Residential > Multi-Unit > Duplex |
| Local Zoning Code | AA |
| Legal Description | T014H00000000 |
| Legal Block | 2000 |
| Legal Lot Number | 200 |
| Jurisdiction | SUFFOLK NY |
| Township / Civil Division | ISLIP |
| Census Block Group | 2 |
| Census Block | 2012 |
| Census Tract | 145808 |
Source: Suffolk County and Islip Town records, as of August 11, 2026
Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.
| Owner of Record | Individual Name on Record |
|---|---|
| Mailing Address | 845 JOHNSON AVE, RONKONKOMA, NY 11779-6085 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Deed Names | Name on Deed |
|---|---|
| Record Updated | Oct 29, 2026 |
| Document Type | Grant Deed |
|---|---|
| Jurisdiction | SUFFOLK NY |
| Recording Date | May 16, 2019 |
| Property Address | 845 JOHNSON AVE, RONKONKOMA, NY 11779-6052 |
| Document Number | 0130120274 |
| Book / Page | 013012 / 000274 |
| Instrument Date | Apr 9, 2019 |
| Transaction Type | Transfer |
| Record Updated | Jun 17, 2019 |
| Title Company | NOT AVAILABLE |
| Tax | $0.00 |
|---|---|
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Address | 845 JOHNSON AVE RONKONKOMA NY 117796052, RONKONKOMA, NY 11779-6052 |
Source: Suffolk County and Islip Town assessment roll, as of August 11, 2026
| Type | Name |
|---|---|
| State | New York |
| County | Suffolk County |
| County Subdivision | Islip Town |
| Unified School District | Connetquot Central School District (PK - 12) |
| Year | Assessed Value | Assessed Market Value |
|---|---|---|
| 2025 | $45,600 (-4%) Land $15,100 Building $30,500 | |
| 2024 | $642,253 (-1.57%) Land $212,676 Building $429,577 | |
| 2023 | $47,500 Land $15,100 Building $32,400 | $652,473 Land $207,418 Building $445,055 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
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.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Low lower than 99.1% of the US · lower than 99.2% 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.
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 |
| 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.
Source: FCC Broadband Data Collection, based on 314 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Optimum Fiber · Cable | 8,000 / 8,000 |
| Verizon Fiber · Fixed Wireless in parts of the area | 2,300 / 2,300 |
May also be available: T-Mobile.
5G (outdoors only) and 4G LTE
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