223 Riverside St is a 854 square foot house on a 8,276 square foot lot with 1 bedroom and 1 bathroom. Based on Redfin's Portsmouth data, we estimate the home's value is $578,952.
Single-familyProperty Type
1930Year Built
8,276 sq ftLot Size
$678Est. Price/Sq.Ft.
Source:Public Records
Redfin Estimate
$578,952
$9,000 since September
Recently sold homes
Estimate history
Homes for sale
This home's estimate is 16% higher than the average sale price ($499K) of 6 comparable homes.
As the MLS and public records start to fill up, we'll list the details here.
Year
Property tax
Land + Additions
Assessment*
2025
$7,799 (+0.7%)
$497,100 + $90,200
$587,300
2024
$7,741 (+3.1%)
$497,100 + $90,200
$587,300
2023
$7,506 (+46.1%)
$497,100 + $90,200
$587,300
2022
$5,136 (+1.6%)
$244,800 + $85,300
$330,100
2021
$5,054 (+1.6%)
$244,800 + $85,300
$330,100
2020
$4,975 (+36.6%)
$244,800 + $85,300
$330,100
2019
$3,642 (+2.7%)
$150,900 + $71,200
$222,100
2018
$3,547 (+3.6%)
$150,900 + $71,200
$222,100
2017
$3,425 (−0.5%)
$150,900 + $71,200
$222,100
2016
$3,443 (+1.3%)
$158,900 + $56,300
$215,200
2015
$3,400
$158,900 + $56,300
$215,200
2014
$3,400 (−12.0%)
$158,900 + $56,300
$215,200
2013
$3,865 (+2.0%)
$198,400 + $67,600
$266,000
2012
$3,788
$198,400 + $67,600
$266,000
Tax history for 223 Riverside St
Year
Property tax
Land + Additions
Assessment*
2025
$7,799 (+0.7%)
$497,100 + $90,200
$587,300
2024
$7,741 (+3.1%)
$497,100 + $90,200
$587,300
2023
$7,506 (+46.1%)
$497,100 + $90,200
$587,300
2022
$5,136 (+1.6%)
$244,800 + $85,300
$330,100
2021
$5,054 (+1.6%)
$244,800 + $85,300
$330,100
2020
$4,975 (+36.6%)
$244,800 + $85,300
$330,100
2019
$3,642 (+2.7%)
$150,900 + $71,200
$222,100
2018
$3,547 (+3.6%)
$150,900 + $71,200
$222,100
2017
$3,425 (−0.5%)
$150,900 + $71,200
$222,100
2016
$3,443 (+1.3%)
$158,900 + $56,300
$215,200
2015
$3,400
$158,900 + $56,300
$215,200
2014
$3,400 (−12.0%)
$158,900 + $56,300
$215,200
2013
$3,865 (+2.0%)
$198,400 + $67,600
$266,000
2012
$3,788
$198,400 + $67,600
$266,000
*Taxable value of land and structures on it ("additions") is determined regularly by local assessors and does not affect market price.
Permits
Jan 6, 2026 • Active
Mechanical
Gas
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: 748
Basement Type: Partial
Bathroom Information
# of Full Baths: 1
Heating & Cooling
Heating Type: Forced Hot Water
Room Information
# of Rooms: 4
Exterior
Exterior Information
Physical Condition: Fair
Building Style Type: Cottage/Bungalow
Exterior Wall: Wood Siding/Shingle
Roof Shape Type: Gable
Property Information
Living Sq. Ft: 854
Gross Sq. Ft: 2,290
Ground Floor Sq. Ft: 748
# of Units: 1
# of Stories: 1
Lot Information
# of Buildings: 1
Land Sq. Ft: 8,276
Municipality Name: PORTSMOUTH
Acres: 0.19
Zoning Code: R10
State Use Description: 1-FAMILY RESIDENCE
Financial
Assessor Information
Assessment Year: 2025
Public facts
Beds: 1
Baths: 1.0
Sq. Ft.: 854
Stories: 1.0
Lot Size: 8,276 square feet
Style: Single Family Residential
Year Built: 1930
Year Renovated: —
County: Newport County
APN: 101295
Home facts updated by county records on Jun 22, 2026
Around this home
Schools
Howard Hathaway School
Public K-4 • Assigned • 1.1mi
10/10
Portsmouth Middle School
Public 5-8 • Assigned • 5.7mi
8/10
Portsmouth High School
Public 9-12 • Assigned • 1.6mi
9/10
Provided by GreatSchools
Lifestyle
Provided by Walk Score and Local Logic
Historical weather
Portsmouth, RI • 02871
Average low and high temperatures (°F)
36
24
37
24
48
34
57
42
66
51
78
61
81
66
76
61
72
59
63
50
54
40
41
29
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Sun exposure
In this area, properties receive around 9 hours in
June and 4.6 hours in December, which is comparable to the
U.S. average for solar exposure.
9 hrs
4.6 hrs
JuneDecember
Provided by Shadowmap
Estimated sale price
$551,000 – $666,000
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