21 Boston Post Rd is a 1,860 square foot house on a 1.74 acre lot with 3 bedrooms and 2 bathrooms. Based on Redfin's Old Lyme data, we estimate the home's value is $549,390.
Single-familyProperty Type
1959Year Built
1.74 acresLot Size
$295Est. Price/Sq.Ft.
Source:Public Records
Redfin Estimate
$549,390
$11K since July
Recently sold homes
Estimate history
Homes for sale
This home's estimate is 7.6% lower than the average sale price ($595K) 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*
2023
$5,048
$91,000 + $123,800
$214,800
2022
$5,048 (+0.9%)
$91,000 + $123,800
$214,800
2021
$5,005 (+0.4%)
$91,000 + $123,800
$214,800
2020
$4,983 (+8.0%)
$91,000 + $123,800
$214,800
2019
$4,614 (+2.3%)
$80,900 + $125,000
$205,900
2018
$4,511 (+0.7%)
$80,900 + $125,000
$205,900
2017
$4,478 (+2.6%)
$80,900 + $125,000
$205,900
2016
$4,365 (+9.5%)
$80,900 + $125,000
$205,900
2014
$3,985 (+6.0%)
$80,900 + $121,800
$202,700
2011
$3,758
$80,900 + $113,800
$194,700
Tax history for 21 Boston Post Rd
Year
Property tax
Land + Additions
Assessment*
2023
$5,048
$91,000 + $123,800
$214,800
2022
$5,048 (+0.9%)
$91,000 + $123,800
$214,800
2021
$5,005 (+0.4%)
$91,000 + $123,800
$214,800
2020
$4,983 (+8.0%)
$91,000 + $123,800
$214,800
2019
$4,614 (+2.3%)
$80,900 + $125,000
$205,900
2018
$4,511 (+0.7%)
$80,900 + $125,000
$205,900
2017
$4,478 (+2.6%)
$80,900 + $125,000
$205,900
2016
$4,365 (+9.5%)
$80,900 + $125,000
$205,900
2014
$3,985 (+6.0%)
$80,900 + $121,800
$202,700
2011
$3,758
$80,900 + $113,800
$194,700
*Taxable value of land and structures on it ("additions") is determined regularly by local assessors and does not affect market price.
Permits
Aug 3, 2025 • Final
Gas appliance, piping and propane tank
Gas
May 18, 2025 • Final
Electrical
Electrical
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
Bathroom Information
# of Full Baths: 2
Heating & Cooling
Heating Type: Forced Hot Water
Room Information
# of Rooms: 8
Exterior
Exterior Information
Physical Condition: Average
Building Style Type: Ranch
Exterior Wall: Wood Siding/Shingle
Roof Shape Type: Gable
Property Information
Living Sq. Ft: 1,860
Gross Sq. Ft: 4,004
# of Units: 1
# of Stories: 1
Lot Information
# of Buildings: 1
Land Sq. Ft: 75,794
Municipality Name: OLD LYME
Acres: 1.74
State Use Description: 1-FAMILY RESIDENCE
Financial
Assessor Information
Assessment Year: 2023
Public facts
Beds: 3
Baths: 2.0
Sq. Ft.: 1,860
Stories: 1.0
Lot Size: 1.74 acres
Style: Single Family Residential
Year Built: 1959
Year Renovated: —
County: New London County
APN: 1552198
Home facts updated by county records on Jul 13, 2023
Around this home
Schools
Lyme Consolidated School
Public K-5 • Assigned • 5.6mi
8/10
Lyme-Old Lyme Middle School
Public 6-8 • Assigned • 1.1mi
9/10
Lyme-Old Lyme High School
Public 9-12 • Assigned • 1.1mi
8/10
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
3/10 Fire Factor
0.15% chance of being in a wildfire in next 30 years
5/10 Heat Factor
7 days above 95° expected this year, 17 days in 30 years
8/10 Wind Factor
80% chance of strong winds in next 30 years
4/10 Air Factor
5 unhealthy days expected this year, 7 days in 30 years
Provided by First Street
Historical weather
Old Lyme, CT • 06371
Average low and high temperatures (°F)
35
22
37
23
50
33
59
42
67
51
78
60
83
67
79
62
74
58
65
47
54
38
40
26
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
$522,000 – $632,000
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