21 Seaview Avenue, Mashpee, MA 02649

21 Seaview Avenue Mashpee MA 02649
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Owner Information
Owner 1
Christopher A Walsh
Owner 2
Ming Hui Chen
Owner's Address
11 Arlington Road Chestnut Hill, MA 02467
Market Sale Information
Most recent sale date
8/29/2006
Previous sale date
9/26/1978
Transfer document #
(180956)-
Previous transfer document
(75669)
Grantor
Catherine E Warner
Previous grantor
Most recent sale price
$868,000.00
Previous sale price
$58,500.00
Site Information
Property ID
118-43-0
Lot Size
0.16
Use Code
101 - Residential, single family
Zoning
R3
Building Style
Ranch
Number of Rooms
6
Stories
1
Number of Beds
3
Year Built
1956
Number of full baths
1
Condition
Number of half baths
0
Finished Area
884
Number of Kitchen
Gross Living Area
Number of Fireplaces
Bsmnt floot
Number of parking
Interior walls
Plywood
Floor type
W/W Carpet
Solar Hot Water
No
Roof Structure
Gable
Heating type
Forced Air
Roof Cover
Asphalt Shingle
Heating fuel
Oil
Frame type
Wood Frame
Air Condition (%)
Sidings
Wood Shingles
Assessment Information
Fiscal Year
2025
Land Value
$1,298,300.00
Total value
$1,487,700.00
Building value
$189,100.00
Estimated tax
$9,551.00
Yard improvement value
$300.00
Flood Map MassMapper Google Street View
Certified Mass Appraisal
19992000200120022003200420052006200720082009201020112012201320142015201620172018201920202021202220232024$0$200,000$400,000$600,000$800,000$1,000,000$1,200,000$1,400,000$1,600,000Total Assessment ($)ImprovementsLandBuildingTotal Assessment
Comparable Properties
Mailing Labels $Valuation Report Copy To Clipboard
2 Uncle Edwards Road8 Rock Island Road21 Seaview Avenue$0$200,000$400,000$600,000$800,000$1,000,000$1,200,000$1,400,000$1,600,000Subject PropertyTotal Assessment ($)Total Assessment
Address 21 Seaview Avenue A) 2 Uncle Edwards RoadB) 8 Rock Island Road
Photo
Plan
Map
Proximity 0.31.0
Last Sold 5/20/20253/27/2025
Price $772,200$640,000
Net Living Area 960784
Stories 11
Sale Price/sft $981.90$804.38$816.33
Style RanchRanchBungalow
Age 195619581940
Rooms 675
Bedrooms 342
Full baths 111
Half baths 001
Gross Living Area
Heating Fuel OilGasNone
Detached Garage
Lot Size 0.160.220.21
Roof Cover Asphalt ShingleAsphalt ShingleAsphalt Shingle
AEM Value - Building $189,100.00$219,200$124,800
AEM Value - Land $1,298,300.00$683,900$1,123,900
AEM Value - Other $300.00$0$500
AEM Value - Total $1,487,700.00$903,100$1,249,200
# Address Last Sold Sale Price Dist(m) Style LA (sq ft) Lot(ac) BR F-HB
@ 21 Seaview Avenue 8/29/2006 $868,000 0 Ranch 884 0.16 3 1-0 -
  Criteria
A 2 Uncle Edwards Road 5/20/2025 $772,200 0.3 Ranch 960 0.22 4 1-0
B 8 Rock Island Road 3/27/2025 $640,000 1.0 Bungalow 784 0.21 2 1-1
Averages 61 days $706,100 0.62 --- 872 0.21 --- ---  

Estimation of Market Value - $845,975

As of today, 06/23/2025, the estimated market value of 21 Seaview Avenue, Mashpee considering the above 2 comparable properties is $845,975.

 

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 Property51 Shore Drive52 Bluff Avenue38 Cordwood Road53 Bluff Avenue19 Shore Drive32 Cordwood Road49 Shore Drive15 Shore Drive78 Alma Road7 Wilsons Grove217 Wading Place Road16 Starboard Lane12 Jeep Place1 Wilsons Grove21 Seaview Avenue227 Wading Place Road10 Starboard Lane2 Starboard Lane8 Jeep Place6 Starboard Lane221 Wading Place Road20 Jeep Place8 Shore Drive16 Jeep Place24 Jeep Place4 Jeep Place28 Jeep Place$0$1,000,000$2,000,000$3,000,000$4,000,000$5,000,000$6,000,000$7,000,000Total Assessment ($)Total Assessment
# Address Last Sold Sale Price Dist(m) Style LA (sq ft) Lot(ac) BR F-HB
@ 21 Seaview Avenue 8/29/2006 $868,000 0 Ranch 884 0.16 3 1-0 -
  Criteria
A 17 Seaview Avenue 6/18/2014 $700,000 0.0 Cape 1,732 0.16 3 2-0
B 25 Seaview Avenue 11/24/2020 $1,472,000 0.0 Cape 1,725 0.19 3 2-1
C 86 Bluff Avenue 3/30/2020 $1 0.0 Ranch 986 0.16 3 1-0
D 82 Bluff Avenue 5/16/2006 $100 0.0 Colonial 2,292 0.16 4 2-0
E 90 Bluff Avenue 7/31/2009 $1,275,000 0.0 Ranch 1,468 0.18 3 2-0
F 21 Overlook Knoll Road 12/9/1997 $100 0.0 Colonial 2,104 0.15 3 2-1
G 25 Overlook Knoll Road 8/10/2021 $2,075,000 0.0 New Style 3,476 0.15 3 3-1
H 15 Seaview Avenue 12/19/2003 $1 0.0 Colonial 2,410 0.16 4 3-1
I 17 Overlook Knoll Road 1/4/2022 $1,290,000 0.0 Colonial 2,588 0.15 3 2-1
J 29 Seaview Avenue 9/7/2018 $1,450,000 0.0 Ranch 936 0.23 3 2-0
K 78 Bluff Avenue 5/18/1998 $227,500 0.0 Ranch 1,192 0.16 3 1-1
L 94 Bluff Avenue 1/11/2011 $1 0.0 Contemporary 2,770 0.21 3 2-1
M 13 Overlook Knoll Road 10/2/2008 $1 0.0 Colonial 2,248 0.15 3 3-0
N 85 Bluff Avenue 4/12/2002 $540,000 0.0 Colonial 2,572 0.17 3 3-1
O 29 Overlook Knoll Road 2/15/2017 $1,600,000 0.0 New Style 3,291 0.33 3 5-0
P 11 Seaview Avenue 3/11/2021 $1,679,000 0.0 New Style 2,010 0.16 3 2-1
Q 81 Bluff Avenue 12/15/2017 $837,500 0.0 New Style 3,731 0.18 3 3-1
R 89 Bluff Avenue 10/3/2022 $1,950,000 0.0 Split Level 992 0.17 3 1-0
S 74 Bluff Avenue 5/29/2018 $985,000 0.0 Cape 1,384 0.16 3 4-2
T 20 Overlook Knoll Road 3/17/2015 $1 0.0 Ranch 992 0.15 3 1-0
U 24 Overlook Knoll Road 10/14/2020 $100 0.0 Ranch 896 0.15 3 1-0
V 75 Bluff Avenue 10/7/2011 $950,000 0.0 Custom 3,074 0.18 3 4-1
W 16 Overlook Knoll Road 10/24/2014 $115,000 0.0 Colonial 1,956 0.15 4 2-0
X 93 Bluff Avenue 4/9/2018 $1,650,000 0.1 Colonial 1,902 0.24 4 3-0
Y 9 Overlook Knoll Road 6/26/2018 $1 0.1 Ranch 900 0.15 3 1-0
Z 0 Bluff Avenue 6/13/1995 $124,700 0.1 0.33 -
- 7 Seaview Avenue 6/21/2002 $100 0.1 Ranch 1,032 0.15 3 1-0
- 14 Overlook Knoll Road 8/29/2018 $100 0.1 Ranch 1,104 0.15 3 2-0
- 30 Overlook Knoll Road 11/18/2020 $1 0.1 Colonial 1,772 0.33 3 2-0
- 73 Bluff Avenue 7/13/2017 $10 0.1 Custom 2,460 0.18 1 3-1
- 70 Bluff Avenue 3/20/2019 $1 0.1 Custom 2,271 0.16 3 2-1
- 24 Wilsons Grove 5/28/2024 $100 0.1 Camp 595 0.05 2 1-1
- 22 Wilsons Grove 5/18/2010 $1 0.1 Colonial 1,256 0.05 2 2-1
- 26 Wilsons Grove 9/13/2019 $1 0.1 Conventional 913 0.05 2 2-0
- 28 Wilsons Grove 11/19/2014 $10 0.1 Camp 707 0.05 2 0-1
- 20 Wilsons Grove 3/21/2023 $1 0.1 Camp 512 0.07 2 1-0
- 30 Wilsons Grove 5/6/2004 $1 0.1 Colonial 1,289 0.05 2 2-0
- 18 Wilsons Grove 5/25/2021 $775,000 0.1 Custom 1,878 0.08 3 2-1
- 32 Wilsons Grove 1/26/2017 $100 0.1 Camp 780 0.05 3 1-0
- 34 Wilsons Grove 5/10/1999 $100 0.1 Camp 984 0.05 1 1-0
- 23 Starboard Lane 7/16/1990 $265,000 0.1 Contemporary 2,084 0.16 3 2-0
- 16 Wilsons Grove 9/25/2017 $790,000 0.1 Colonial 1,788 0.1 2 2-0
- 19 Starboard Lane 9/9/2024 $1 0.1 Colonial 1,803 0.16 4 1-1
- 5 Overlook Knoll Road 6/29/2005 $849,000 0.1 Contemporary 2,638 0.15 3 3-0
- 10 Overlook Knoll Road 12/14/1984 $145,000 0.1 Colonial 2,563 0.15 3 3-1
- 25 Starboard Lane 7/11/2019 $1,925,000 0.1 Custom 2,375 0.16 4 3-0
- 36 Wilsons Grove 5/3/2024 $100 0.1 Camp 1,116 0.08 3 2-0
- 15 Starboard Lane 3/16/2017 $0 0.1 Colonial 1,912 0.16 4 2-0
- 71 Bluff Avenue 12/23/2021 $725,000 0.1 Cape 2,683 0.18 4 2-0
- 40 Wilsons Grove 9/2/2020 $100 0.1 Ranch 947 0.08 3 1-1
- 12 Wilsons Grove 7/2/2015 $900,000 0.1 Colonial 2,417 0.16 4 3-1
- 3 Seaview Avenue 6/27/2012 $1 0.1 Ranch 1,762 0.21 3 2-1
- 11 Starboard Lane 5/15/1998 $217,500 0.1 Ranch 1,112 0.16 3 1-0
- 31 Starboard Lane 3/20/2020 $3,000,000 0.1 Custom 2,706 0.29 3 3-1
- 66 Bluff Avenue 9/12/2022 $1,175,000 0.1 Contemporary 1,558 0.21 3 2-1
- 6 Overlook Knoll Road 2/16/2017 $100 0.1 Colonial 2,352 0.15 3 5-0
- 8 Wilsons Grove 3/12/2019 $765,000 0.1 Colonial 1,904 0.1 3 3-0
- 1 Overlook Knoll Road 8/12/2020 $1 0.1 Ranch 1,188 0.13 2 1-0
- 25 Wading Place Road 6/13/1995 $124,700 0.1 0.01 -
- 23 Wilsons Grove 10/17/2017 $1 0.1 Camp 852 0.08 2 1-0
- 21 Wilsons Grove 2/2/2017 $150,000 0.1 Camp 618 0.05 2 1-1
- 25 Wilsons Grove 1/17/2024 $1 0.1 Ranch 708 0.08 2 1-0
- 9 Starboard Lane 3/14/2025 $1,810,000 0.1 Cape 1,612 0.16 5 0-2
- 19 Wilsons Grove 11/21/2019 $1 0.1 Colonial 1,988 0.1 3 2-0
- 29 Wilsons Grove 10/9/1992 $0 0.1 Contemporary 1,129 0.05 3 2-0
- 0 Wilsons Grove-Beach 10/11/1991 $0 0.1 0.1 -
- 31 Wilsons Grove 6/7/2022 $775,000 0.1 Camp 720 0.05 2 1-1
- 17 Wilsons Grove 12/23/2009 $0 0.1 Cape 1,002 0.05 2 1-0
- 44 Shore Drive 12/10/2019 $100 0.1 Ranch 1,344 0.25 3 2-0
- 35 Wilsons Grove 5/24/2005 $1 0.1 Conventional 1,481 0.1 4 1-0
- 15 Wilsons Grove 6/1/2016 $350,000 0.1 Camp 540 0.1 2 1-0
- 4 Wilsons Grove 10/24/2022 $10 0.1 Ranch 1,466 0.16 3 1-0
- 22 Starboard Lane 11/12/2010 $1,425,000 0.1 Cape 1,928 0.21 3 3-0
- 39 Wilsons Grove 11/28/2023 $100 0.1 Colonial 1,929 0.1 2 2-1
- 11 Wilsons Grove 1/12/2016 $440,000 0.1 Ranch 656 0.1 2 1-0
- 2 Overlook Knoll Road 6/26/2018 $10 0.1 Cape 1,566 0.12 3 3-1
- 5 Starboard Lane 1/16/2015 $860,000 0.1 Colonial 2,199 0.16 4 3-1
- 16 Starboard Lane 12/31/2008 $0 0.1 Raised Ranch 1,008 0.16 3 2-0
- 18 Starboard Lane 9/10/2024 $2,500,000 0.1 Cape 2,002 0.19 3 2-0
- 7 Wilsons Grove 12/20/1996 $15,559 0.1 Ranch 1,413 0.16 4 1-0
- 2 Wilsons Grove 2/16/2021 $10 0.1 Raised Ranch 1,208 0.16 2 1-1
- 10 Starboard Lane 1/17/2025 $1,450,000 0.1 Colonial 1,936 0.16 3 2-1
- 37 Shore Drive 6/11/2002 $1 0.1 Ranch 1,202 0.14 3 2-0
- 3 Starboard Lane 7/7/2014 $275,000 0.1 Ranch 1,214 0.16 3 1-1
- 35 Shore Drive 1/14/2020 $100 0.1 Ranch 1,040 0.14 4 1-1
- 41 Shore Drive 7/12/2024 $534,009 0.1 Cape 1,530 0.14 4 2-1
- 31 Shore Drive 5/23/1996 $1 0.1 Ranch 1,262 0.14 3 2-0
- 3 Wilsons Grove 3/11/2022 $1 0.1 Cape 2,202 0.16 3 2-0
- 20 Jeep Place 10/15/1999 $445,000 0.1 Ranch 1,624 0.25 3 3-0
- 16 Jeep Place 1/28/2011 $950,000 0.1 Contemporary 1,721 0.24 2 2-1
- 24 Jeep Place 6/2/2014 $1,400,000 0.1 Colonial 2,099 0.27 4 4-0
- 227 Wading Place Road 2/3/1997 $1 0.1 Colonial 1,692 0.16 3 1-1
- 27 Shore Drive 2/26/2021 $1 0.1 Ranch 1,240 0.16 3 2-0
- 6 Starboard Lane 7/5/2019 $100 0.1 Ranch 1,641 0.17 3 2-0
- 59 Bluff Avenue 5/29/2019 $799,000 0.1 Colonial 1,963 0.15 3 3-1
- 12 Jeep Place 3/20/2018 $10 0.1 Ranch 1,256 0.22 2 1-1
- 28 Jeep Place 5/25/2021 $1 0.1 New Style 4,354 0.42 3 5-1
- 23 Shore Drive 3/20/2024 $715,000 0.1 Ranch 940 0.16 3 1-0
- 49 Shore Drive 4/28/2023 $1,280,000 0.1 Ranch 1,106 0.14 3 2-0
- 1 Wilsons Grove 9/4/2018 $10 0.1 Conventional 1,552 0.16 3 2-0
- 8 Jeep Place 10/21/2021 $1 0.1 Ranch 1,391 0.19 2 2-0
- 2 Starboard Lane 4/2/1999 $325,000 0.1 Ranch 1,512 0.17 4 2-0
- 221 Wading Place Road 3/13/2015 $100 0.1 Colonial 2,392 0.17 4 2-1
- 51 Shore Drive 9/24/1992 $0 0.1 Ranch 812 0.14 3 1-0
- 19 Shore Drive 10/15/2012 $450,000 0.1 Ranch 1,199 0.17 3 1-0
- 52 Bluff Avenue 11/25/2005 $441,000 0.1 Ranch 1,120 0.19 3 1-0
- 38 Cordwood Road 6/15/2023 $1 0.1 Ranch 1,079 0.17 3 1-0
- 34 Cordwood Road 8/17/2020 $1,176,000 0.1 Colonial 2,136 0.16 5 3-0
- 4 Jeep Place 6/28/2007 $825,000 0.1 Custom 2,848 0.29 4 4-1
- 32 Cordwood Road 7/12/2024 $100 0.1 Ranch 1,246 0.15 3 1-0
- 78 Alma Road 4/8/2015 $1 0.1 Cape 2,471 0.2 1 3-0
- 53 Bluff Avenue 11/10/2006 $1 0.1 Ranch 1,316 0.19 3 1-1
- 8 Shore Drive 8/16/2024 $2,000,000 0.1 Colonial 2,205 0.17 3 4-0
- 15 Shore Drive 9/6/2006 $1 0.1 Colonial 1,988 0.17 3 2-1
- 217 Wading Place Road 6/7/2021 $100 0.1 Ranch 833 0.2 2 1-0
- 236 Wading Place Road 10/19/1939 $0 0.1 2 -
Averages 4380 days $448,012 0.08 --- 1,600 0.17 --- ---  
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
118 43 0 21 Seaview Avenue