Set amidst the natural beauty that defines Block Island, this extraordinary 7.4 acre parcel offers a rare chance to create a private island retreat while becoming a steward of the land itself. Protected by a conservation easement designed to preserve the land's ecosystem and safeguard surrounding open space from future development, this property strikes a thoughtful balance between conservation and residential use. Within the protected landscape, approximately 2.2 acres have been designated for development, allowing for the construction of a single-family home with up to 2,000 square feet of living space and a maximum height of 28 feet. There is also a provision for a 600 square-foot garage. The result is an opportunity to design a home that is complementary to, rather than competitive with, the island's natural environment. With a direct connection to Block Island's renowned Greenway Trail system, the property invites a lifestyle immersed in nature where morning walks, birdwatching, and quiet exploration become part of daily life. Whether envisioned as a thoughtfully designed seasonal retreat or a legacy property for generations to enjoy, this land offers more than a homesite it offers the chance to live within a permanently protected landscape while contributing to the preservation of one of New England's most extraordinary island ecosystems. A true blank canvas in a spectacular setting, for those who value privacy, conservation, and the enduring beauty of open space.
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Around this home
Schools
K - 12
Preschool & daycare
Block Island School
Public K-12 • Assigned • 1.4mi
5/10
Provided by GreatSchools
Lifestyle
Provided by Walk Score and Local Logic
Property details
Exterior
Exterior features
Wooded property
Rolling terrain
Gravel road access
Approximately 370 feet of frontage
Home design
Residential zoning (RA)
Raw land
Construction
7.4-acre lot
Utilities
Water not available
Sale and tax history for 0 Old Mill Rd
Sale History
Tax History
Date
Event
Price
RIS #1419507
Jul 31, 2026
Listed
$1,500,000
Year
Property tax
Land + Additions
Assessment*
2025
$26 (+4.0%)
$4,500
2024
$25 (−7.4%)
$4,500
2023
$27 (−3.6%)
$4,500
2022
$28 (+3.7%)
$4,000
2021
$27 (+8.0%)
$4,000
2020
$25
$4,000
2019
$25 (+4.2%)
$4,000
2018
$24 (+4.3%)
$4,000
2017
$23 (+4.5%)
$4,000
2015
$22 (−18.5%)
$4,000
2014
$27 (+3.8%)
$5,000
2013
$26 (+4.0%)
$5,000
2012
$25
$5,200
Public record
Beds
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Baths
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Stories
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Lot width
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Lot depth
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Lot size
2.61 Acres
Year renovated
—
Finished Sq. Ft.
—
Unfinished Sq. Ft.
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Total Sq. Ft.
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Year built
—
Style
Vacant Land
County
Washington County
APN
567891
Parking Spaces
—
Basement
—
Accessible
—
HOA Dues
—
Garage
—
Features
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Last updated by owner on Sep 26, 2026.
Climate risks
1/10 Flood Factor
Minimal risk of a flood reaching the building in the next 30 years
1/10 Fire Factor
Unlikely to be in a wildfire in next 30 years
4/10 Heat Factor
5 days above 85° expected this year, 15 days in 30 years
8/10 Wind Factor
80% chance of strong winds in next 30 years
5/10 Air Factor
7 unhealthy days expected this year, 7 days in 30 years
Provided by First Street
Historical weather
Block Island, RI • 02807
Average low and high temperatures (°F)
35
26
36
26
45
35
52
42
61
51
71
60
77
67
75
63
71
62
63
53
54
43
41
31
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Sun exposure
96/ 100
Exceptional sunlight
Sunscore
This home ranks in the top 3% for direct sun exposure in Block Island. There appears to be minimal shading by surrounding buildings, terrain, and vegetation.
10.2 hrs
5.5 hrs
JuneDecember
Provided by Shadowmap
Redfin Estimate for 0 Old Mill Rd
$1,456,434
$44K under list price of $1.50M
Nearby comparable homes
The Redfin Estimate uses 5 recent nearby sales, priced between $1.4M to $1.8M.