Home Massachusetts Nantucket County Nantucket Prospect St
9 Prospect St, Nantucket, MA 02554 Property Records
Nantucket County and Nantucket Town property record for 9 Prospect St, Nantucket, MA 02554
Property Summary
Property Type Residential Multi-Family (5+ Units) Details 4 bd · 3 ba · 1,288 sqft · built 1847 Lot Size 0.09 acres (3,911 sqft) Owner Company Name on File Last Sale $2,300,000 (Dec 2021) Tax Bill $7,706 (2026) Deeds & Mortgages Mar 2022 Mortgage Dec 2021 Sale + 2 more Flood Zone Zone X (minimal risk)APN 11137
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Property Details APN / Parcel Number
Primary APN 11137 Alternative APN
Interior
Bedrooms 4 Beds Full Baths 3 Baths Total Rooms 7 Rooms Stories 2 Stories Building Area 1,288 sqft Living Area Gross Area 2,306 sqft Basement Area 616 sqft Unfinished Basement 616 sqft Fireplaces 1 Fireplace Fireplace Fireplace
Exterior
Year Built Built 1847 Effective Year Built Effective 1847 Architectural Style Historical Exterior Material Wood Siding Roof Material Asphalt Lot Area 3,911 sqft (0.09 acres) Total Buildings 2 Buildings
Utilities, Heating & Cooling
Location & Zoning Account Number 11137 Street Address 9 PROSPECT ST City NANTUCKET State MA Zip 02554-2703 Property Category Residential Property Type Residential > Multi-Unit > Residential Multi-Family (5+ Units) Local Zoning Code ROH Jurisdiction NANTUCKET MA Township / Civil Division NANTUCKET Census Block Group 1 Census Block 1044 Census Tract 950100
Historic Designation
Source: NPS National Register of Historic Places, as of August 1, 2026
Historic District Within the Nantucket Historic Districtlisted 1966 · National Historic Landmark (designated 1966) · NRIS 66000772
Federal listing alone does not restrict alterations; local historic district rules, which this data does not cover, may apply.
Owner
9 Prospect St, a residential property, is owned by a company that acquired it in March 2022.
Source: Nantucket County and Nantucket Town records, as of October 20, 2026
Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial .
Owner of Record Company Name on File Mailing Address 11 AINSWORTH ST, 2, ROSLINDALE, MA 02131-1942 Owner Type Company Vesting Company
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Deeds, Mortgages & Sale History
Assessor's Deed Record
Deed Names Name on Deed Last Sale Dec 10, 2021 · Amount on File Deed Sale Dec 10, 2021 · Amount on File Prior Sale Jul 21, 2017 · Amount on File Deed Book / Page 1868 / 134 Last Transfer Date Mar 1, 2022 Transfer Doc 0001883-84 Record Updated Oct 29, 2026
March 2022: Quit Claim Deed, Transfer Document Type Quit Claim Deed Jurisdiction NANTUCKET MA Recording Date Mar 2, 2022 Property Address 9 PROSPECT ST, NANTUCKET, MA 02554-2703 Document Number 0001883-84 Book / Page 1883 / 84 Instrument Date Mar 1, 2022 Instrument 610 Transaction Type Transfer Record Updated May 12, 2022
Transaction
Tax $0.00 Amount Accuracy No Consideration Stated Additional Quitclaim Intrafamily Transfer
Transferred From (Grantor/Seller)
Transferred To (Grantee/Buyer)
Name Verified Name Address 11 AINSWORTH ST # 2, 2, BOSTON, MA 02131-1942
Mortgage
Document Number 0001883-87 Date Mar 2, 2022 Book Page 1883/87 Instrument 202200000612
Lender
Name MORGAN STANLEY CREDIT CORP Type Mortgage Company
Agreement
Type ARM Amount Amount on Record Term 361 Months Due Apr 1, 2052
Interest
Rate Type Adjustable Rate Rate 2.55% Type Change Date Apr 1, 2032 Index Other
December 2021: Quit Claim Deed, Transfer Document Type Quit Claim Deed Jurisdiction NANTUCKET MA Recording Date Dec 10, 2021 Property Address 9 PROSPECT ST, NANTUCKET, MA 02554-2703 Document Number 001868-134 Book / Page 1868 / 134 Instrument Date Dec 8, 2021 Instrument 4923 Transaction Type Transfer Record Updated May 12, 2022
Transaction
Amount Amount on Record Tax $0.00 Amount Accuracy Full Amount Stated Additional
Transferred From (Grantor/Seller)
Transferred To (Grantee/Buyer)
Name Verified Name Relationship Tenants by the Entirety Address 11 AINSWORTH ST # NO2, NO2, ROSLINDALE, MA 02131-1942 Investor Possibly a Property Investor
July 2017: Quit Claim Deed, Transfer Document Type Quit Claim Deed Jurisdiction NANTUCKET MA Recording Date Jul 21, 2017 Property Address 9 PROSPECT ST, NANTUCKET, MA 02554-2703 Document Number 001601-116 Book / Page 1601 / 116 Instrument 2185 Transaction Type Transfer Record Updated May 12, 2022
Transaction
Amount Amount on Record Downpayment Downpayment on Record Loan-to-Value (LTV) LTV on Record Tax $35.52 Amount Accuracy Full Amount Stated Additional
Transferred From (Grantor/Seller)
Transferred To (Grantee/Buyer)
Name Verified Name Address 9 PROSPECT ST, NANTUCKET, MA 02554-2703
Mortgage
Document Number 0016010121 Date Jul 21, 2017 Instrument 01601/0121
Lender
Agreement
Amount Amount on Record Term 360 Months Due Jul 21, 2047
Interest
Rate 3.25% Max Rate At Change 80.1% Max Rate 2.5%
May 2017: Quit Claim Deed, Transfer Document Type Quit Claim Deed Jurisdiction NANTUCKET MA Recording Date May 11, 2017 Property Address 9 PROSPECT ST, NANTUCKET, MA 02554-2703 Document Number 1591-94 Book / Page 001591 / 000094 Instrument Date May 8, 2017 Instrument 1385 Transaction Type Transfer Record Updated May 30, 2017
Transaction
Tax $0.00 Additional Quitclaim Intrafamily Transfer
Transferred From (Grantor/Seller)
Transferred To (Grantee/Buyer)
Name Verified Name Address 50 BEECHTREE DR LARCHMONT NY 105381202, LARCHMONT, NY 10538-1202
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Tax Assessment & Valuation
The 2026 property tax bill for 9 Prospect St was $7,706, up 8.3% from the year before.
Source: Nantucket County and Nantucket Town assessment roll, as of April 14, 2026
Property Jurisdictions
Type Name State Massachusetts County Nantucket County County Subdivision Nantucket Town Unified School District Nantucket School District (PK - 12)
Tax Bill & Assessment History
Year Tax Bill Assessed Value Assessed Market Value 2026 $7,706.00 (+8.32%) $2,469,900 (+13.87%) Land $1,287,000 Building $1,182,900 $2,799,527 2025 $7,114.00 (+7.53%) $2,169,000 (+2.62%) Land $929,500 Building $1,239,500 2024 $6,616.00 (+19.42%) $2,113,700 (+22.47%) Land $893,700 Building $1,220,000 2023 $5,540.00 $1,725,900 Land $783,000 Building $942,900
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
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Flood
FEMA maps place 9 Prospect St in Zone X, an area of minimal flood risk, though there have been 4 flood claims nearby since 1988.
Source: FEMA National Flood Hazard Layer, effective February 7, 2025 · OpenFEMA NFIP redacted claims and policies, as of September 2026
FEMA Flood Zone Zone Xminimal risk Flood Insurance Requirement Not requiredlenders may require it Flood Insurance Cost Premium on File median of 49 policies Nearby Flood Policies 49 in force Nearby Flood Claims 4 (1988–2017) Claims Outside the SFHA 4 of 4 Most Recent Claim Sep 2017 · 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.
Wildfire
Wildfire risk around 9 Prospect St is low, with less than a 0.01% annual chance of wildfire.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
Wildfire Risk Lowlower than 99.1% of the US · lower than 98.7% of Massachusetts Wildfire Likelihood Under 0.01% annual chance Exposure Nonebeyond 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 System WANNACOMET WATER COMPANYserves 27,703 people · EPA ID MA4197000 Water Source Groundwater Last State Inspection May 2025 Lead 2 ppb (2023–2025)action level 15 ppb
Violations Reported to EPA
Water Quality Nonelast 10 years Treatment and Procedure Nonelast 10 years Monitoring and Reporting 67last 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 557 locations within half a mile, as of December 31, 2025
Provider Max Down / Up (Mbps) XfinityCable 2,000 / 2,000
May also be available: T-Mobile, Verizon.
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