For sale

$11,995,000

4 Black Walnut Ln, Nantucket, MA 02554

5beds

4,356sqft

$69,900/mo

Get pre-qualified

Single Family Residence

Built in 1996

3.7 Acres Lot

$-- Zestimate^®

$2,754/sqft

$-- HOA

What's special

Expansive wraparound porchMultiple outdoor living spaces

Set on 3.7 private acres in one of Siasconset's most desirable locations north of the Sankaty Head Lighthouse and just a short drive to the town of Sconset, this exceptional estate offers coastal living with panoramic views of the Atlantic Ocean, Sesachacha Pond, and the iconic Sankaty Head Lighthouse. The property features a beautifully appointed four-bedroom main residence and a separate one-bedroom studio connected to the detached one-car garage, providing an ideal opportunity for guests, extended family, or rental income. Expansive wraparound porch, multiple outdoor living spaces, and direct proximity to the Sankaty Head Beach Club create a rare combination of privacy, convenience, and breathtaking scenery. Dual driveway access from both Black Walnut Lane and Sankaty Head Road further enhances the property's functionality and appeal.

3 days

1,266

35

Facts & features

Interior

Bedrooms & bathrooms

Bedrooms: 5
Bathrooms: 5
Full bathrooms: 4
1/2 bathrooms: 1
Main level bedrooms: 3

Heating

GFHA

Appliances

Included: Stove: yes, Washer: yes

Features

AC, Irr, Floor 1: The first floor is thoughtfully designed for comfortable everyday living and entertaining, featuring three bedrooms, two and one-half bathrooms, a well-appointed kitchen, and a spacious living room. A generous wraparound porch extends the living space outdoors, showcasing sweeping views of the Atlantic Ocean and Sesachacha Pond., Floor 2: The entire second floor is dedicated to a private primary suite, complete with a full en-suite bathroom and an exclusive outdoor patio. Wake up to elevated views of Sesachacha Pond, the Atlantic Ocean, and the surrounding coastal landscape from this tranquil retreat.
Flooring: pine/soft wood
Basement: The main residence includes a spacious unfinished basement, offering abundant storage and ample potential for future customization or additional utility space.
Has fireplace: No
Fireplace features: 1
Furnished: Yes

Interior area

Total structure area: 4,356
Total interior livable area: 4,356 sqft

Property

Parking

Parking features: Ample
Has garage: Yes

Features

Exterior features: Porch, Patio, Deck
Has view: Yes
View description: Ocean, Pond
Has water view: Yes
Water view: Ocean,Pond
Frontage type: None

Lot

Size: 3.7 Acres
Features: Yes

Details

Additional structures: A detached one-car garage is complemented by a fully independent one-bedroom apartment above, providing versatile accommodations for guests, a caretaker, or potential rental income while maintaining privacy from the main residence.
Parcel number: 1/4
Zoning: LUG3

Construction

Type & style

Home type: SingleFamily
Property subtype: Single Family Residence

Materials

Foundation: poured

Condition

Year built: 1996

Utilities & green energy

Sewer: Septic Tank
Water: Well
Utilities for property: Cbl

Community & HOA

Location

Region: Nantucket

Financial & listing details

Price per square foot: $2,754/sqft
Tax assessed value: $6,731,000
Annual tax amount: $21,000
Date on market: 8/24/2026
Listing agreement: E

Estimated market value

Not available

Estimated sales range

Not available

$6,212/mo

Price history

Date	Event	Price
8/24/2026	Listed for sale	$11,995,000+1916%$2,754/sqft
Source: LINK #93318 Report a problem
10/31/1995	Sold	$595,000$137/sqft
Source: Public Record Report a problem

Public tax history

Year	Property taxes	Tax assessment
2025	$21,818 +6.9%	$6,651,900 +2%
2024	$20,419 +10.8%	$6,523,800 +13.6%
2023	$18,431 +13.6%	$5,741,800 +32.4%
2022	$16,221 +6.7%	$4,337,200 +3.6%
2021	$15,196 -2.4%	$4,186,200 -7.2%
2020	$15,563 +4.5%	$4,510,900 +1.8%
2019	$14,893 +8.8%	$4,432,500 +14.3%
2018	$13,685 -2.1%	$3,876,700 -5.9%
2017	$13,973 +1.8%	$4,121,900 +0.9%
2016	$13,721 +15.9%	$4,083,600 +24.5%
2015	$11,836 -0.4%	$3,278,800 +3.8%
2014	$11,882 +3.8%	$3,160,200 +1.4%
2013	$11,443 -5.2%	$3,117,900 -6.5%
2012	$12,073 +1.1%	$3,335,000
2011	$11,939 +0.7%	$3,335,000 -15.4%
2010	$11,859 +6.6%	$3,940,000 -2.2%
2009	$11,124 +3.4%	$4,030,500
2008	$10,761 +7.2%	$4,030,500
2007	$10,036 -3.4%	$4,030,500 +10.2%
2006	$10,384 +3.6%	$3,656,200 +20.4%
2005	$10,020 +20%	$3,036,500 +13.8%
2004	$8,352 -6.6%	$2,668,300 +2%
2003	$8,944 +9.9%	$2,615,100 +26.6%
2001	$8,142	$2,066,400