21 Keene Street, Duxbury, MA 02332

21 Keene Street Duxbury MA 02332
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Owner Information
Owner 1
Colby G Thomason
Owner 2
Sara L Thomason
Owner's Address
21 Keene St Duxbury, MA 02332
Market Sale Information
Most recent sale date
5/11/2015
Previous sale date
3/20/2014
Transfer document #
45531-18
Previous transfer document
44159-39
Grantor
William L Dant
Previous grantor
William Lawrence Dant
Most recent sale price
$647,500.00
Previous sale price
$100.00
Site Information
Property ID
014-020-002
Lot Size
0.92
Use Code
101 - Residential, single family
Zoning
RC
Building Style
Colonial
Number of Rooms
8
Stories
2.5
Number of Beds
4
Year Built
2000
Number of full baths
3
Condition
very Good
Number of half baths
1
Finished Area
3168
Number of Kitchen
Gross Living Area
5572
Number of Fireplaces
1
Bsmnt floot
Number of parking
Interior walls
Drywall
Floor type
Carpet
Solar Hot Water
No
Roof Structure
Gable
Heating type
Hot Water
Roof Cover
Asphalt
Heating fuel
Gas
Frame type
Air Condition (%)
Sidings
Wood Shingle
Assessment Information
Fiscal Year
2024
Land Value
$350,000.00
Total value
$1,097,300.00
Building value
$676,600.00
Estimated tax
$11,038.00
Yard improvement value
$70,700.00
Flood Map MassMapper Google Street View
Certified Mass Appraisal
200620072008200920102011201220132014201520162017201820192020202120222023$0$200,000$400,000$600,000$800,000$1,000,000$1,200,000Total Assessment ($)ImprovementsLandBuildingTotal Assessment
Comparable Properties
Mailing Labels $Valuation Report Copy To Clipboard
670 Congress Street153 Cross Street21 Keene Street$0$200,000$400,000$600,000$800,000$1,000,000$1,200,000Subject PropertyTotal Assessment ($)Total Assessment
Address 21 Keene Street A) 153 Cross StreetB) 670 Congress Street
Photo
Plan
Map
Proximity 0.81.0
Last Sold 5/28/20255/9/2025
Price $975,000$835,000
Net Living Area 2,4762,608
Stories 22
Sale Price/sft $204.39$393.78$320.17
Style ColonialColonialConventional
Age 200019671967
Rooms 897
Bedrooms 443
Full baths 322
Half baths 100
Gross Living Area 557241444116
Heating Fuel GasGasGas
Detached Garage
Lot Size 0.920.990.95
Roof Cover AsphaltAsphaltAsphalt
AEM Value - Building $676,600.00$405,200$328,200
AEM Value - Land $350,000.00$352,700$351,100
AEM Value - Other $70,700.00$0$10,100
AEM Value - Total $1,097,300.00$757,900$689,400
# Address Last Sold Sale Price Dist(m) Style LA (sq ft) Lot(ac) BR F-HB
@ 21 Keene Street 5/11/2015 $647,500 0 Colonial 3,168 0.92 4 3-1 -
  Criteria
A 153 Cross Street 5/28/2025 $975,000 0.8 Colonial 2,476 0.99 4 2-0
B 670 Congress Street 5/9/2025 $835,000 1.0 Conventional 2,608 0.95 3 2-0
Averages 22 days $905,000 0.90 --- 2,542 0.97 --- ---  

Estimation of Market Value - $1,250,078

As of today, 06/09/2025, the estimated market value of 21 Keene Street, Duxbury considering the above 2 comparable properties is $1,250,078.

 

In estimating the current market value, RealtyInSite follows the sales comparison (market) approach which is an approach based on the principles of supply and demand (principle of change) and the principle of substitution. The principle of substitution assumes that a prudent person will pay no more for a property than it would cost to purchase a comparable substitute property.

 

Comparable sales data are applied to arrive at an estimate of value. By default, comparable properties are those properties located within 1 mile of the subject property that have sold within the last 6 months and have a similar size of living area. The table shown above lists the comparable properties that were considered. Note that which properties are considered comparables can be adjusted by varying the selection criteria or deleting non-representative properties.

Neighboring Properties
Mailing Labels
Copy to Clipboard
Subject Property0 Summer Street30 Keene Street95 High Street147 High Street115 High Street110 High Street41 Keene Street27 Keene Street21 Keene Street80 High Street100 High Street$0$200,000$400,000$600,000$800,000$1,000,000$1,200,000$1,400,000$1,600,000Total Assessment ($)Total Assessment
# Address Last Sold Sale Price Dist(m) Style LA (sq ft) Lot(ac) BR F-HB
@ 21 Keene Street 5/11/2015 $647,500 0 Colonial 3,168 0.92 4 3-1 -
  Criteria
A 27 Keene Street 7/7/2022 $1 0.0 Cape Cod 2,728 0.37 4 2-1
B 100 High Street 5/24/2024 $1,500,000 0.0 Colonial 4,290 1.48 4 3-2
C 110 High Street 10/4/1991 $69,000 0.0 Colonial 1,868 0.97 3 2-0
D 0 Summer Street 6/6/2001 $3,175,000 0.1 Vacant Land 0.05 -
E 95 High Street 10/29/1997 $1 0.1 Cape Cod 1,116 0.93 3 1-0
F 80 High Street 10/15/2014 $670,000 0.1 Colonial 2,790 1.46 3 2-1
G 115 High Street 3/25/2015 $1 0.1 Cape Cod 2,128 1.31 2 2-0
H 41 Keene Street 9/20/2010 $1 0.1 Colonial 2,128 7.55 2 3-0
I 30 Keene Street 8/15/2023 $385,000 0.1 Outbuildings 1.12 -
J 147 High Street 3/22/2022 $1 0.1 Antique 2,524 2.27 5 1-0
Averages 4745 days $579,901 0.07 --- 1,957 1.75 --- ---  
DISCLAIMER: The information in this report was collected from the concerned Assessors Office and Registry of Deeds.  Compu-Links disclaims any and all representations or warranties as to the accuracy of this information
14-20-2 21 Keene Street