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9 William St, Amsterdam, NY 12010 Property Records

Montgomery County and Amsterdam City property record for 9 William St, Amsterdam, NY 12010

Property Summary

Property TypeTriplex
Details3 bd · 3 ba · 2,709 sqft · built 1880
Lot Size0.059 acres (2,600 sqft)
OwnerIndividual Name on File
Last Sale$123,500 (Dec 2023)
Tax Bill$1,402 (2026)
Deeds & MortgagesDec 2023 Sale
Jun 2019 Transfer
Flood ZoneZone X (minimal risk)
APN270100 55.27-3-22

Property Details

APN / Parcel Number

Primary APN270100 55.27-3-22
Alternative APNs
  • 010005502700030220000000
  • 0367030

Interior

Bedrooms3 Beds
Full Baths3 Baths
Stories2 Stories
Building Area2,709 sqft Total Area
1st Floor Area985 sqft
2nd Floor Area985 sqft
Upper Floors Area738 sqft

Exterior

Year BuiltBuilt 1880
Effective Year BuiltEffective 1880
Architectural StyleTraditional
Exterior MaterialBrick
Lot Area2,600 sqft (0.059 acres)
Lot Dimensions104 ft deep x 25 ft wide
PorchSlab
Porch Area24 sqft

Utilities, Heating & Cooling

Heating SystemForced Air with A/C
Heating FuelGas
SewerMunicipal
Water SourceCommercial

Location & Zoning

Account Number0367030
Street Address9 WILLIAM ST
CityAMSTERDAM
StateNY
Zip12010-4159
Property CategoryResidential
Property TypeResidential > Multi-Unit > Triplex
Local Zoning Code03 - MULTI
Legal DescriptionRES L 25 X 111
Legal Block3
Legal Lot Number22.000
JurisdictionMONTGOMERY NY
Township / Civil DivisionAMSTERDAM
Census Block Group1
Census Block1017
Census Tract70300

Owner

9 William St, a triplex, is owned by an individual who bought it in December 2023.

Source: Montgomery County and Amsterdam City records, as of October 19, 2026

Owner of RecordIndividual Name on File
Mailing Address50 HUNT RD, WALLKILL, NY 12589-4722
Owner TypeIndividual

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
Dec 19, 2023Warranty Deed, Transfer
Jun 28, 2019Quit Claim Deed, Transfer
NOT AVAILABLE

Assessor's Deed Record

Deed NamesName on Deed
Last SaleDec 19, 2023 · Amount on File
Deed SaleDec 19, 2023 · Amount on File
Prior SaleOct 30, 1997 · Amount on File
Deed Document Number20234611
Prior Transfer DateJun 27, 2019
Prior Transfer Doc0000003891
Record UpdatedOct 29, 2026

December 2023: Warranty Deed, Transfer

Document TypeWarranty Deed
JurisdictionMONTGOMERY NY
Recording DateDec 19, 2023
Property Address9 WILLIAM ST, AMSTERDAM, NY 12010-4159
Document Number0000000611
Instrument DateSep 15, 2023
Instrument2023-4611
Transaction TypeTransfer
Record UpdatedJan 9, 2024

Transaction

AmountAmount on Record
Tax$0.00
Amount AccuracyRounded by County
Additional
  • Arm's Length

Transferred From (Grantor/Seller)

NameVerified Name

Transferred To (Grantee/Buyer)

NameVerified Name
Address50 HUNT RD, WALLKILL, NY 12589-4722

June 2019: Quit Claim Deed, Transfer

Document TypeQuit Claim Deed
JurisdictionMONTGOMERY NY
Recording DateJun 28, 2019
Property Address9 WILLIAM ST, AMSTERDAM, NY 12010-4159
Document Number0000083891
Instrument DateJun 3, 2019
Instrument83891
Transaction TypeTransfer
Record UpdatedAug 13, 2019
Title CompanyNOT AVAILABLE

Transaction

Tax$0.00
Additional
  • Quitclaim

Transferred From (Grantor/Seller)

NameVerified Name

Transferred To (Grantee/Buyer)

NameVerified Name
Address778 LANGLEY RD AMSTERDAM NY 120107762, AMSTERDAM, NY 12010-7762

Tax Assessment & Valuation

The 2026 property tax bill for 9 William St was $1,402, up 139.7% from the year before.

Source: Montgomery County and Amsterdam City assessment roll, as of May 11, 2026

Property Jurisdictions

TypeName
StateNew York
MunicipalityAmsterdam City
CountyMontgomery County
Unified School DistrictAmsterdam City School District (PK - 12)

Tax Bill & Assessment History

YearTax BillAssessed ValueAssessed Market Value
2026$1,402.00 (+139.66%)
2025$585.00$28,000 Land $600 Building $27,400$82,353 Land $1,765 Building $80,588
2023$28,000 (-) Land $600 Building $27,400$65,116 (+16.28%) Land $1,395 Building $63,721
2022$28,000 Land $600 Building $27,400$56,000 Land $1,200 Building $54,800
2020$508.00

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

Flood

FEMA maps place 9 William St in Zone X, an area of minimal flood risk, within 500 ft of a high-risk flood zone.

Source: FEMA National Flood Hazard Layer, effective November 30, 2022

FEMA Flood ZoneZone X
minimal risk
Nearest Special Flood Hazard AreaZone AE, within 500 ft
Flood Insurance RequirementNot required
lenders may require it

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

Wildfire

Wildfire risk around 9 William St is low, with a 0.01% annual chance of wildfire.

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

Wildfire RiskLow
lower than 80% of the US · above 54% of New York
Wildfire Likelihood0.01% annual chance
ExposureNone
beyond 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 SystemAMSTERDAM (C)
serves 20,700 people · EPA ID NY2800136
Water SourceSurface water
Last State InspectionOct 2025
Lead14 ppb (2026)
action level 15 ppb

Violations Reported to EPA

Water QualityNone
last 10 years
Treatment and ProcedureCorrosion control
Apr 2022
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 232 locations within half a mile, as of December 31, 2025

ProviderMax Down / Up (Mbps)
Spectrum
Cable · Fiber in parts of the area		1,000 / 1,000
T-Mobile
Fixed Wireless		100 / 20

May also be available: Verizon.

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