594 Old Mill Rd is a 1,880 square foot house on a 2.88 acre lot with 4 bedrooms and 2 bathrooms. Based on Redfin's Block Island data, we estimate the home's value is $1,870,095.
Single-familyProperty Type
1850Year Built
2.88 acresLot Size
$995Est. Price/Sq.Ft.
Source:Public Records
Redfin Estimate
$1,870,095
$60K since October
Recently sold homes
Estimate history
Homes for sale
This home's estimate is 6.1% lower than the average sale price ($1.99M) of 6 comparable homes.
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Earn from this home
Rent
$2,825/mo
Redfin rental estimate
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Market trends in 02807, RI
Last updated October 2026
Buyer's Market
Seller's Market
Buyer's market
Sale-to-list price
95.4%
+1.8% MoM
Median sale price
$1.8M
$386K MoM
Avg. days on market
66d
79 days MoM
Recently sold homes
5
0 MoM
Provided by Redfin
Sale history for 594 Old Mill Rd
As the MLS and public records start to fill up, we'll list the details here.
Year
Property tax
Land + Additions
Assessment*
2026
$7,195 (+10.3%)
$1,085,800 + $607,200
$1,693,000
2025
$6,522 (+3.7%)
$681,700 + $450,600
$1,132,300
2024
$6,289 (−8.3%)
$681,700 + $457,600
$1,139,300
2023
$6,859 (+24.3%)
$681,700 + $457,600
$1,139,300
2022
$5,520 (+5.7%)
$604,560 + $175,120
$779,680
2021
$5,224 (+5.3%)
$604,560 + $175,120
$779,680
2020
$4,959 (+3.2%)
$604,560 + $175,120
$779,680
2019
$4,803
$604,560 + $175,120
$779,680
2018
$4,800 (+1.5%)
$604,560 + $202,160
$806,720
2017
$4,727 (+2.4%)
$604,560 + $202,160
$806,720
2016
$4,614 (−24.9%)
$604,560 + $202,160
$806,720
2015
$6,145 (−17.5%)
$905,120 + $210,160
$1,115,280
2014
$7,444 (+2.5%)
$1,131,400 + $262,700
$1,394,100
2013
$7,263 (+3.6%)
$1,131,400 + $262,700
$1,394,100
2012
$7,014
$1,189,300 + $259,900
$1,449,200
Tax history for 594 Old Mill Rd
Year
Property tax
Land + Additions
Assessment*
2026
$7,195 (+10.3%)
$1,085,800 + $607,200
$1,693,000
2025
$6,522 (+3.7%)
$681,700 + $450,600
$1,132,300
2024
$6,289 (−8.3%)
$681,700 + $457,600
$1,139,300
2023
$6,859 (+24.3%)
$681,700 + $457,600
$1,139,300
2022
$5,520 (+5.7%)
$604,560 + $175,120
$779,680
2021
$5,224 (+5.3%)
$604,560 + $175,120
$779,680
2020
$4,959 (+3.2%)
$604,560 + $175,120
$779,680
2019
$4,803
$604,560 + $175,120
$779,680
2018
$4,800 (+1.5%)
$604,560 + $202,160
$806,720
2017
$4,727 (+2.4%)
$604,560 + $202,160
$806,720
2016
$4,614 (−24.9%)
$604,560 + $202,160
$806,720
2015
$6,145 (−17.5%)
$905,120 + $210,160
$1,115,280
2014
$7,444 (+2.5%)
$1,131,400 + $262,700
$1,394,100
2013
$7,263 (+3.6%)
$1,131,400 + $262,700
$1,394,100
2012
$7,014
$1,189,300 + $259,900
$1,449,200
*Taxable value of land and structures on it ("additions") is determined regularly by local assessors and does not affect market price.
Permits
Mar 27, 2024 • Final
Building
Remodel
Permit history is from public records and may be incomplete or inaccurate. Redfin and its agents make no representations about the property condition or permit status. Buyers should independently verify all information.
Property details
Interior
Basement Information
Basement Sq. Ft: 969
Bathroom Information
# of Full Baths: 2
Heating & Cooling
Heating Type: Forced Hot Water
Fireplace Information
# of Fireplaces: 1
Has Fireplace
Room Information
# of Rooms: 6
Exterior
Exterior Information
Physical Condition: Average
Building Style Type: Conventional
Exterior Wall: Wood Siding/Shingle
Roof Shape Type: Gable
Property Information
Living Sq. Ft: 1,880
Gross Sq. Ft: 3,616
Ground Floor Sq. Ft: 1,346
# of Units: 1
# of Stories: 2
Lot Information
# of Buildings: 1
Land Sq. Ft: 125,453
Municipality Name: BLOCK ISLAND
Acres: 2.88
Zoning Code: RA
State Use Description: 1-FAMILY RESIDENCE
Financial
Assessor Information
Assessment Year: 2026
Public facts
Beds: 4
Baths: 2.0
Sq. Ft.: 1,880
Stories: 2.0
Lot Size: 2.88 acres
Style: Single Family Residential
Year Built: 1850
Year Renovated: —
County: Washington County
APN: 9611614S
Home facts updated by county records on Oct 19, 2026
Around this home
Schools
K - 12
Preschool & daycare
Block Island School
Public K-12 • Assigned • 1.9mi
5/10
Provided by GreatSchools
Lifestyle
Provided by Walk Score and Local Logic
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
5/10 Heat Factor
7 days above 85° expected this year, 19 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
62
53
54
43
41
31
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Sun exposure
In this area, properties receive around 9.1 hours in
June and 4.6 hours in December, which is comparable to the
U.S. average for solar exposure.
9.1 hrs
4.6 hrs
JuneDecember
Provided by Shadowmap
Estimated sale price
$1.78M – $2.15M
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