6 Underhill Ln, Nantucket, MA 02554 Property Records

Nantucket County and Nantucket Town property record for 6 Underhill Ln, Nantucket, MA 02554

Property Summary

Property Type	Single Family Home
Details	7 bd · 7 ba · 5,442 sqft · built 1997
Lot Size	0.463 acres (20,160 sqft)
Owner	2 Individual Names on File
Last Sale	$3,400,000 (Jan 2005)
Tax Bill	$22,764 (2025)
Deeds & Mortgages	Jun 2023 Refinance
Flood Zone	Zone X (minimal risk)
APN	`NANT M:07332 P:00058-2`

Property Details

APN / Parcel Number

Primary APN	`NANT M:07332 P:00058-2`
Alternative APNs	`M:07332 P:00058=2` `12154`

Interior

Bedrooms	7 Beds
Full Baths	7 Baths
Half Baths	2 Half Baths
Stories	2 Stories
Building Area	5,442 sqft Living Area
Gross Area	7,218 sqft
1st Floor Area	2,128 sqft
Fireplaces	1 Fireplace
Fireplace	Fireplace

Exterior

Year Built	Built 1997
Effective Year Built	Effective 1997
Architectural Style	Colonial
Exterior Material	Wood Siding
Roof Type	Gambrel
Roof Material	Wood Shingle
Lot Area	20,160 sqft (0.463 acres)
Deck Area	Deck Area

Utilities, Heating & Cooling

Cooling System	HVAC
Heating System	Hot Water
Heating Fuel	Oil

Location & Zoning

Account Number	12154
Street Address	6 UNDERHILL LN
City	NANTUCKET
State	MA
Zip	02554
Property Category	Residential
Property Type	Residential > Single Family > Home
Local Zoning Code	SR20
Jurisdiction	NANTUCKET MA
Township / Civil Division	NANTUCKET
Census Block Group	1
Census Block	1039
Census Tract	950500

Historic Designation

Source: NPS National Register of Historic Places, as of August 1, 2026

Historic District	Within the Nantucket Historic District listed 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

6 Underhill Ln is owned by two individuals who bought it in January 2005.

Source: Nantucket County and Nantucket Town records, as of October 8, 2026

Owner of Record	2 Individual Names on File
Mailing Address	825 8TH AVE, NEW YORK, NY 10019-7416
Owner Type	Individual

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

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Sale	Jan 7, 2005 · Amount on File
Deed Sale	Jan 7, 2005 · Amount on File
Record Updated	Oct 29, 2026

June 2023: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	NANTUCKET MA
Property Address	6 UNDERHILL LN, NANTUCKET, MA 02554
Transaction Type	Mortgage
Record Updated	Jun 16, 2023

Transferred To (Grantee/Buyer)

Name	Verified Name

Mortgage

Document Number	0001939-65
Date	Jun 2, 2023
Book Page	1939/65
Instrument	1013

Lender

Name	CITIBANK NA
Type	Bank

Agreement

Type	Stand-Alone Refinance
Amount	Amount on Record
Term	361 Months
Due	Jul 1, 2053

Tax Assessment & Valuation

The 2025 property tax bill for 6 Underhill Ln was $22,764, up 6.9% 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
2025	$22,764.00 (+6.95%)	$6,940,200 (+2.06%) Land $3,336,200 Building $3,604,000
2024	$21,285.00 (+13.04%)	$6,800,300 (+15.93%) Land $3,398,000 Building $3,402,300
2023	$18,830.00	$5,866,000 Land $3,235,600 Building $2,630,400

Assessed value is set for property tax purposes and is not a market price estimate.

Flood

FEMA maps place 6 Underhill Ln in Zone X, an area of minimal flood risk, though there have been 52 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 X minimal risk
Flood Insurance Requirement	Not required lenders may require it
Flood Insurance Cost	Premium on File median of 68 policies
Nearby Flood Policies	68 in force
Nearby Flood Claims	52 (1988–2016)
Claims Outside the SFHA	48 of 52
Most Recent Claim	Feb 2016 · rainfall accumulation
Claims by Event	Blizzard Of 96, Jan 1996 · 4 claims Blizzards, High Winds & Record Snowfall, Mar 1993 · 4 claims Winter Coastal Storm, Dec 1992 · 5 claims

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 6 Underhill Ln is low, with a 0.01% annual chance of wildfire.

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

Wildfire Risk	Low lower than 80% of the US · above 57% of Massachusetts
Wildfire Likelihood	0.01% annual chance
Exposure	None 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 System	SIASCONSET WATER DEPARTMENT serves 3,000 people · EPA ID MA4197001
Water Source	Groundwater
Last State Inspection	May 2025
Lead	Under 1 ppb (2025) action level 15 ppb
Copper	1.49 mg/L (2019) action level 1.3 mg/L

Violations Reported to EPA

Water Quality	None last 10 years
Treatment and Procedure	None last 10 years
Monitoring and Reporting	32 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 169 locations within half a mile, as of December 31, 2025

Provider	Max Down / Up (Mbps)
Xfinity Cable	2,000 / 2,000
Verizon Fixed Wireless	300 / 20