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70 Diamond Dr, Plainview, NY 11803 Property Records

Nassau County and Oyster Bay Town property record for 70 Diamond Dr, Plainview, NY 11803

Property Summary

Property TypeSingle Family Home
Details2.5 ba · 3,753 sqft · built 2018
Lot Size0.281 acres (12,240 sqft)
Owner2 Individual Names on File
Last Sale$3,850,000 (Aug 2018)
Tax Bill$17,465 (2025)
Deeds & MortgagesJul 2022 Transfer
Sep 2019 Mortgage
+ 2 more
Flood ZoneZone X (minimal risk)
APN12-379-00-0019

Property Details

APN / Parcel Number

Primary APN12-379-00-0019
Alternative APNs
  • 2489-12-379-00-0019-0
  • 12379000019000000000
  • 282489 12.-379-19
  • 12379 00190

Interior

Full Baths2.5 Baths
Half Baths1 Half Bath
Total Rooms13 Rooms
Stories2 Stories
Building Area3,753 sqft Living Area
Gross Area3,900 sqft
1st Floor Area1,785 sqft
Basement Area147 sqft

Exterior

Year BuiltBuilt 2018
Effective Year BuiltEffective 2018
Architectural StyleColonial
Exterior MaterialAluminum/Vinyl
Construction TypeFrame
Roof MaterialOther
Lot Area12,240 sqft (0.281 acres)
Lot Dimensions166 ft deep x 75 ft wide
Garage Area210 sqft

Exterior Amenities

Pool Area450 sqft
PorchOpen Frame Porch
Porch Area560 sqft
Balcony Area18 sqft

Utilities, Heating & Cooling

Cooling SystemCentral
Heating SystemCentral
Heating FuelOil
SewerMunicipal
Water SourceCommercial

Location & Zoning

Account Number12379 00190
Street Address70 DIAMOND DR
CityPLAINVIEW
StateNY
Zip11803-3027
Property CategoryResidential
Property TypeResidential > Single Family > Home
Legal DescriptionTOWN #3 SCH DIST 019
Legal SubdivisionMAP OF MARTON VILLAGE
Legal Block379
Legal Lot Number19
JurisdictionNASSAU NY
Township / Civil DivisionOYSTER BAY
Census Block Group1
Census Block1005
Census Tract519704

Owner

Source: Nassau County and Oyster Bay Town records · APN 12-379-00-0019

Assessment roll updated June 17, 2026 · Last verified June 2026

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

Owner of Record2 Individual Names on File
Mailing Address70 DIAMOND DR, PLAINVIEW, NY 11803-3027
OccupancyOwner Occupied
Owner TypeIndividual

Deeds, Mortgages & Sale History

DateDocument
Jul 12, 2022Intrafamily Transfer, Transfer
JUDICIAL TITLE INSURANCE AGENCY INC, JUDICIAL TITLE INS AGCY LLC
Sep 11, 2019Deed of Trust, Mortgage · Conventional Mortgage
CATHAY BANK
Aug 08, 2018Grant Deed, Transfer
Apr 17, 2017Grant Deed, Transfer
STEWART TITLE, STEWART TITLE INSURANCE COMPANY

Assessor's Deed Record

Deed Names2 Verified Names on Deed
Last SaleAug 08, 2018 · Amount on Record
Deed SaleAug 08, 2018 · Amount on Record
Prior SaleApr 17, 2017 · Amount on Record
Deed Document Number2018-070494
Deed Book / Page13689 / 789
Last Transfer DateJul 05, 2022
Transfer DocD142680932
Record UpdatedSep 20, 2026

July 2022: Intrafamily Transfer, Transfer

Document TypeIntrafamily Transfer
JurisdictionNASSAU NY
Recording DateJul 12, 2022
Property Address70 DIAMOND DR, PLAINVIEW, NY 11803-3027
Document NumberD142680932
Book / PageD14268 / 932
Map ReferenceMAP 5576
Instrument DateJul 05, 2022
Instrument2022-00073478
Transaction TypeTransfer
Record UpdatedJul 19, 2022
Title CompanyJUDICIAL TITLE INSURANCE AGENCY INC, JUDICIAL TITLE INS AGCY LLC

Transaction

Tax$0.00
Amount AccuracyNo Consideration Stated
Additional
  • Intrafamily Transfer

Transferred From (Grantor/Seller)

NameVerified Name

Transferred To (Grantee/Buyer)

NameVerified Name
Address70 DIAMOND DR, PLAINVIEW, NY 11803-3027

September 2019: Deed of Trust, Mortgage

Document TypeDeed of Trust
JurisdictionNASSAU NY
Property Address70 DIAMOND DR, PLAINVIEW, NY 11803-3027
Transaction TypeMortgage
Record UpdatedMay 14, 2021

Transferred To (Grantee/Buyer)

NameVerified Name

Mortgage

Document Number0436630162
DateSep 11, 2019
Book Page43663/162
Instrument2019-077861
Lender
NameCATHAY BANK
TypeBank
Agreement
TypeConventional Mortgage
AmountAmount Recorded
Interest
Rate TypeAdjustable Rate

August 2018: Grant Deed, Transfer

Document TypeGrant Deed
JurisdictionNASSAU NY
Recording DateAug 08, 2018
Property Address70 DIAMOND DR, PLAINVIEW, NY 11803-3027
Document Number0136890789
Book / Page013689 / 000789
Instrument DateJul 30, 2018
Instrument70494
Transaction TypeTransfer
Record UpdatedSep 24, 2018

Transaction

AmountAmount Recorded
Tax$4,400.00
Amount AccuracyConfirmed
Additional
  • Arm's Length

Transferred From (Grantor/Seller)

NameVerified Name

Transferred To (Grantee/Buyer)

NameVerified Name
Address20930 45TH DR BAYSIDE NY 113613232, BAYSIDE, NY 11361-3232

April 2017: Grant Deed, Transfer

Document TypeGrant Deed
JurisdictionNASSAU NY
Recording DateApr 17, 2017
Property Address70 DIAMOND DR, PLAINVIEW, NY 11803-3027
Document Number0134960328
Book / Page013496 / 000328
Instrument DateApr 01, 2017
Instrument37918
Transaction TypeTransfer
Record UpdatedJun 16, 2017
Title CompanySTEWART TITLE, STEWART TITLE INSURANCE COMPANY

Transaction

AmountAmount Recorded
Tax$1,840.00
Amount AccuracyConfirmed
Additional
  • Arm's Length

Transferred From (Grantor/Seller)

NameVerified Name

Transferred To (Grantee/Buyer)

NameVerified Name
RelationshipTenants in Common
Address2 FAIRBANKS CT WOODBURY NY 117972605, WOODBURY, NY 11797-2605

Tax Assessment & Valuation

Source: Nassau County and Oyster Bay Town records · Assessment roll updated June 17, 2026 · Last verified June 2026

Property Jurisdictions

TypeName
StateNew York
CountyNassau County
County SubdivisionOyster Bay Town
Unified School DistrictPlainview-Old Bethpage Central School District (KG - 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.

YearTax BillAssessed ValueAssessed Market Value
2026$1,057 (+2.62%) Land $387 Building $670$1,057,000 (+2.62%)
2025$17,465.00 (+35.72%) Homeowner's exemption$1,030 (-1.72%) Land $377 Building $653$1,030,000 (-1.72%)
2023$12,868.00 Additional exemption filed$1,048 Land $384 Building $664$1,048,000

Flood & Wildfire

Source: FEMA National Flood Hazard Layer as of April 5, 2023 · FEMA NFIP claims and policies as of September 2026 · USDA Forest Service Wildfire Risk to Communities as of 2024 · Last verified October 2026

Flood

FEMA Flood ZoneZone X
minimal risk
Flood Insurance RequirementNot required
lenders may require it
Nearby Flood Policies2 in force
Nearby Flood Claims4 (1979–2023)
Claims Outside the SFHA4 of 4
Most Recent ClaimSep 2023 · Severe Storm And Flooding

Wildfire

Wildfire RiskNot rated
no burnable land within ember reach

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.

Internet Providers

Source: FCC Broadband Data Collection as of December 31, 2025 · Last verified October 2026

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

Based on FCC filings for 605 locations within half a mile of this property.

Drinking Water

Source: EPA Safe Drinking Water Information System as of 2026 Q3 · EPA water system boundaries as of March 2026 · Last verified October 2026

Water SystemPLAINVIEW WD
public/private · serves 34,000 people
Water SourceGroundwater
Last State InspectionJun 2024
LeadUnder 1 ppb (2021–2023)
action level 15 ppb

Violations Reported to EPA

Water QualityTetrachloroethylene
resolved · Jul 2017
cis-1,2-Dichloroethylene
resolved · Jul 2017
Treatment and ProcedureNone
last 10 years
Monitoring and ReportingNone
last 3 years

Results are for the whole water system as reported to EPA, not water tested at this address; lead at the tap also depends on the building's own pipes. The full violation and enforcement history is in the system's EPA record.

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