21 Seneca St, Ocean Beach, NY 11770 Property Records

Suffolk County and Brookhaven Town property record for 21 Seneca St, Ocean Beach, NY 11770 · Last verified August 2026

Property Highlights

Property Type	Residential > Specialized > Seasonal, Cabin, Vacation
Bedrooms	2 Beds
Bathrooms	1 Baths
Year Built	Built 1955
Square Footage	910 sqft Living Area
Lot Size	7,405 sqft (0.17 acres)
Occupancy	Owner Occupied
Last Sale	$550,000 (2019)
Tax Bill	$3,628.00 (2024)

Property Details

APN / Parcel Number

Primary APN	`0200-985.70-08.00-018.000`
Alternative APNs	`472289 985.70-08-018.000` `228998507000080180000000` `00003274520` `0003274520` `3274520`

Interior

Bedrooms	2 Beds
Full Baths	1 Baths
Total Rooms	4 Rooms
Building Area	910 sqft Living Area
Stories	1 Stories
Fireplace	Fireplace
Fireplaces	1 Fireplaces

Exterior

Year Built	Built 1955
Effective Year Built	Effective 1955
Architectural Style	Ranch Style
Exterior Material	Brick Exterior
Lot Area	7,405 sqft (0.17 acres)

Location & Zoning

Account Number	3274520
Street Address	21 SENECA ST
City	OCEAN BEACH
State	NY
Zip	11770
Property Usage	Residential Property Usage
Type	Residential > Specialized > Seasonal, Cabin, Vacation
Legal Description	OCEAN B PK 3 AMD 175 939 TO 941
Legal Subdivision	OCEAN BAY PK 3 AMMENDED MAP
Legal Block	5700
Legal Lot Number	800
Jurisdiction	SUFFOLK NY
Minor Civil Division	BROOKHAVEN
Census Blockgroup	1
Census Block	1054
Census Tract	159510

Owner

Source: Suffolk County and Brookhaven Town records · APN 0200-985.70-08.00-018.000

Assessment roll updated August 11, 2026 · Last verified August 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 File
Mailing Address	21 SENECA ST, OCEAN BEACH, NY 11770
Occupancy	Owner Occupied
Owner Type	Owner is an Individual, Couple or Unincorporated Entity

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed Names	2 Verified Names on Deed
Last Sale	Oct 03, 2019 · Amount on Record
Deed Sale	Oct 03, 2019 · Amount on Record
Deed Book / Page	13031 / 277
Record Refreshed	Sep 20, 2026

October 2019: Deed, Transfer

Document Type	Deed
Jurisdiction	SUFFOLK NY
Recording Date	Oct 03, 2019
Property Address	21 SENECA ST, OCEAN BEACH, NY 11770
Document Number	0130310277
Book / Page	13031 / 277
Instrument Date	Aug 15, 2019
Transaction Type	Transfer
Record Updated	Jun 23, 2022

Transaction

Amount	Amount Recorded
Tax	$0.00
Amount Accuracy	Full Amount Stated
Additional	Arms Length Transaction

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name

Tax Assessment & Valuation

Source: Suffolk County and Brookhaven Town records · Assessment roll updated August 11, 2026 · Last verified August 2026

Property Jurisdictions

Type	Name
State	New York
County	Suffolk County
County Subdivision	Brookhaven Town
Unified School District	Fire Island Union Free School District (PK - 12)

Tax Bill & Assessment History

Assessed value is set for property tax purposes, not a market price estimate; it is a fraction of this property's market value.

Year	Tax Bill	Assessed Value	Assessed Market Value
2025		$2,315 (-) Land $375 Building $1,940	$482,292 (+11,150.1%) Land $70,755 Building $366,038
2024	$3,628.00
2023		$2,315 Land $375 Building $1,940	$4,287 Land $694 Building $3,593

Flood & Wildfire

Source: FEMA National Flood Hazard Layer, Suffolk County (36103C), updated September 18, 2026 · USDA Forest Service Wildfire Risk to Communities, 2nd edition (2024), fuels as of 2020 · Last verified October 2026

Flood

FEMA Flood Zone	Zone AE
Flood Hazard	High
100-Year Floodplain	Yes 1% annual chance
Special Flood Hazard Area	Yes
Flood Insurance Requirement	Required (federally backed mortgages)
Floodway	No
Base Flood Elevation	9.0 ft

Wildfire

Wildfire Risk	Not rated no burnable land in reach
Wildfire Likelihood	Negligible
Exposure	None beyond ember reach

Values are read at the parcel center point; lenders make the official flood determination.