21 Monarch Ave, Selden, NY 11784 Property Records

Suffolk County and Brookhaven Town property record for 21 Monarch Ave, Selden, NY 11784

Property Summary

Property Type	Single Family Home
Details	3 bd · 2 ba · 1,844 sqft · built 1991
Lot Size	0.93 acres (40,511 sqft)
Owner	Company Name on File
Last Sale	$100,000 (Nov 2017)
Tax Bill	$12,210 (2024)
Deeds & Mortgages	Nov 2017 Transfer
Flood Zone	Zone X (minimal risk)
APN	`0200-447.00-04.00-035.004`

Property Details

APN / Parcel Number

Primary APN	`0200-447.00-04.00-035.004`
Alternative APNs	`472289 447.00-04-035.004` `228944700000040350040000` `00005755152` `0005755152` `5755152`

Interior

Bedrooms	3 Beds
Full Baths	2 Baths
Total Rooms	7 Rooms
Stories	1 Story
Building Area	1,844 sqft Living Area
Fireplaces	1 Fireplace
Fireplace	Fireplace

Exterior

Year Built	Built 1991
Effective Year Built	Effective 1991
Architectural Style	Ranch
Exterior Material	Aluminum/Vinyl
Lot Area	40,511 sqft (0.93 acres)
View / Lot	Waterfront

Utilities, Heating & Cooling

Heating System	Radiant

Location & Zoning

Account Number	5755152
Street Address	21 MONARCH AVE
City	SELDEN
State	NY
Zip	11784-2119
Property Category	Residential
Property Type	Residential > Single Family > Home
Legal Description	HUDSON ESTATES 8797 2
Legal Subdivision	HUDSON ESTATES
Legal Block	7000
Legal Lot Number	400
Jurisdiction	SUFFOLK NY
Township / Civil Division	BROOKHAVEN
Census Block Group	1
Census Block	1017
Census Tract	158112

Owner

Source: Suffolk County and Brookhaven Town records · APN 0200-447.00-04.00-035.004

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	Company Name on File
Mailing Address	21 MONARCH AVE, SELDEN, NY 11784-2119
Occupancy	Owner Occupied
Owner Type	Company
Vesting	Borrower in Default

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed Names	Verified Name on Deed
Last Sale	Nov 17, 2017 · Amount on Record
Deed Sale	Nov 17, 2017 · Amount on Record
Prior Sale	Jan 20, 1999 · Amount on Record
Deed Document Number	201717-0204488
Deed Book / Page	12938 / 411
Prior Transfer Date	Aug 29, 2017
Prior Transfer Doc	0129380411
Record Updated	Sep 20, 2026

November 2017: Quit Claim Deed, Transfer

Document Type	Quit Claim Deed
Jurisdiction	SUFFOLK NY
Recording Date	Nov 17, 2017
Property Address	21 MONARCH AVE, SELDEN, NY 11784-2119
Document Number	0129380411
Book / Page	012938 / 000411
Instrument Date	Aug 29, 2017
Transaction Type	Transfer
Record Updated	Jan 14, 2020
Title Company	NOT AVAILABLE

Transaction

Tax	$0.00
Additional	Quitclaim Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Irrevocable Trust
Address	21 MONARCH AVE SELDEN NY 117842119, SELDEN, NY 11784-2119

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	Middle Country Central 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		$2,960 (-) Land $400 Building $2,560	$616,666 (+11,148.92%) Land $75,472 Building $483,019
2024	$12,210.00
2023		$2,960 Land $400 Building $2,560	$5,482 Land $741 Building $4,741

Flood & Wildfire

Source: FEMA National Flood Hazard Layer as of September 18, 2026 · 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 Zone	Zone X minimal risk
Flood Insurance Requirement	Not required lenders may require it
Nearby Flood Policies	1 in force
Nearby Flood Claims	1 (1979)
Claims Outside the SFHA	1 of 1
Most Recent Claim	Jan 1979 · rainfall accumulation

Wildfire

Wildfire Risk	Low lower than 98% of the US · lower than 97.9% of New York
Wildfire Likelihood	Under 0.01% annual chance
Exposure	None beyond 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

Provider	Max Down / Up (Mbps)
Optimum Communications Fiber · Cable	8,000 / 8,000
Verizon Fiber · Fixed Wireless in parts of the area	980 / 880

Based on FCC filings for 339 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 System	SUFFOLK COUNTY WATER AUTHORITY serves 1,100,000 people
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 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.