21 Seaview Avenue, South Yarmouth, MA 02664

21 Seaview Avenue South Yarmouth MA 02664
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Owner Information
Owner 1
John F Keenan
Owner 2
P G Keenan & O P III
Owner's Address
154 Bear Hill Rd Unit 203 Cumberland, RI 02864
Market Sale Information
Most recent sale date
7/16/2014
Previous sale date
4/23/1998
Transfer document #
28265-0294
Previous transfer document
11375-0142
Grantor
Irene M Keenan
Previous grantor
Irene M Keenan
Most recent sale price
$100.00
Previous sale price
$0.00
Site Information
Property ID
33-27
Lot Size
0.19
Use Code
101 - Residential, single family
Zoning
Building Style
Ranch
Number of Rooms
Stories
1
Number of Beds
3
Year Built
1945
Number of full baths
1
Condition
67
Number of half baths
Finished Area
1152
Number of Kitchen
Gross Living Area
2512
Number of Fireplaces
Bsmnt floot
Number of parking
Interior walls
Drywall/Sheet
Floor type
Hardwood
Solar Hot Water
No
Roof Structure
Gable/Hip
Heating type
Hot Water
Roof Cover
Asph/F Gls/Cmp
Heating fuel
Gas
Frame type
Air Condition (%)
Sidings
Wood Shingle
Assessment Information
Fiscal Year
2025
Land Value
$215,400.00
Total value
$489,000.00
Building value
$273,600.00
Estimated tax
$3,462.00
Yard improvement value
$0.00
Flood Map MassMapper Google Street View
Certified Mass Appraisal
20082009201020112012201320142015201620172018201920202021202220232024$0$100,000$200,000$300,000$400,000$500,000$600,000Total Assessment ($)ImprovementsLandBuildingTotal Assessment
Comparable Properties
Mailing Labels $Valuation Report Copy To Clipboard
Subject Property27 Frank Baker Road17 Frank Baker Road3 Archie Road39 Nauset Road111 Swan Lake Road11 Alison Lane19 Ocean Avenue35 Elton Road38 Wampanoag Road111 Forest Road117 Nantucket Avenue21 Seaview Avenue116 Evergreen Street47 Mattakese Road718 Willow Street$0$100,000$200,000$300,000$400,000$500,000$600,000Total Assessment ($)Total Assessment
Address 21 Seaview Avenue A) 38 Wampanoag RoadB) 17 Frank Baker RoadC) 27 Frank Baker RoadD) 19 Ocean AvenueE) 117 Nantucket AvenueF) 116 Evergreen StreetG) 35 Elton RoadH) 47 Mattakese RoadI) 39 Nauset RoadJ) 111 Swan Lake RoadK) 3 Archie RoadL) 11 Alison LaneM) 111 Forest RoadN) 718 Willow Street
Photo
Plan
Map
Proximity 0.10.20.20.30.40.50.60.70.80.80.80.81.01.0
Last Sold 6/12/20253/14/20251/16/20252/27/20254/15/20254/29/20255/29/20252/28/20253/27/20254/14/20254/29/20256/9/20254/22/20254/1/2025
Price $500,000$459,000$453,000$545,000$49,200$624,900$585,000$486,000$325,000$490,000$561,795$400,000$460,000$589,000
Net Living Area 9368648649369609601,0701,0051,4401,0401,2369631,040988
Stories 11111111111111
Sale Price/sft $0.09$534.19$531.25$524.31$582.26$51.25$650.94$546.73$483.58$225.69$471.15$454.53$415.37$442.31$596.15
Style RanchRanchRanchRanchRanchRanchRanchRanchCape CodCape CodRanchCape CodRanchRanchOld Style
Age 194519551980198119551960196019571950196119861953196619731890
Rooms
Bedrooms 332221233323233
Full baths 111111111111111
Half baths 11
Gross Living Area 251211321848108921441356144824081811327822402391221828282012
Heating Fuel GasGasElectricElectricGasGasGasOilGasGasGasGasGasGasGas
Detached Garage
Lot Size 0.190.320.20.220.280.20.20.20.240.140.270.170.230.470.25
Roof Cover Asph/F Gls/CmpAsph/F Gls/CmpAsph/F Gls/CmpAsph/F Gls/CmpAsph/F Gls/CmpAsph/F Gls/CmpAsph/F Gls/CmpAsph/F Gls/CmpAsph/F Gls/CmpAsph/F Gls/CmpAsph/F Gls/CmpAsph/F Gls/CmpAsph/F Gls/CmpAsph/F Gls/CmpAsph/F Gls/Cmp
AEM Value - Building $273,600.00$217,200$246,500$239,100$211,600$210,900$273,300$294,300$332,600$284,900$285,700$256,700$278,500$326,900$228,100
AEM Value - Land $215,400.00$234,300$133,000$137,500$232,400$273,800$219,100$156,500$189,300$119,600$140,800$126,300$164,300$155,200$297,000
AEM Value - Other $0.00$0$0$0$0$0$0$0$0$0$0$0$0$0$0
AEM Value - Total $489,000.00$451,500$379,500$376,600$444,000$484,700$492,400$450,800$521,900$404,500$426,500$383,000$442,800$482,100$525,100
# Address Last Sold Sale Price Dist(m) Style LA (sq ft) Lot(ac) BR F-HB
@ 21 Seaview Avenue 7/16/2014 $100 0 Ranch 1,152 0.19 3 1- -
  Criteria
A 38 Wampanoag Road 6/12/2025 $500,000 0.1 Ranch 936 0.32 3 1-
B 17 Frank Baker Road 3/14/2025 $459,000 0.2 Ranch 864 0.2 2 1-
C 27 Frank Baker Road 1/16/2025 $453,000 0.2 Ranch 864 0.22 2 1-
D 19 Ocean Avenue 2/27/2025 $545,000 0.3 Ranch 936 0.28 2 1-
E 117 Nantucket Avenue 4/15/2025 $49,200 0.4 Ranch 960 0.2 1 1-
F 116 Evergreen Street 4/29/2025 $624,900 0.5 Ranch 960 0.2 2 1-
G 35 Elton Road 5/29/2025 $585,000 0.6 Ranch 1,070 0.2 3 1-
H 47 Mattakese Road 2/28/2025 $486,000 0.7 Cape Cod 1,005 0.24 3 1-
I 39 Nauset Road 3/27/2025 $325,000 0.8 Cape Cod 1,440 0.14 3 1-
J 111 Swan Lake Road 4/14/2025 $490,000 0.8 Ranch 1,040 0.27 2 1-1
K 3 Archie Road 4/29/2025 $561,795 0.8 Cape Cod 1,236 0.17 3 1-
L 11 Alison Lane 6/9/2025 $400,000 0.8 Ranch 963 0.23 2 1-1
M 111 Forest Road 4/22/2025 $460,000 1.0 Ranch 1,040 0.47 3 1-
N 718 Willow Street 4/1/2025 $589,000 1.0 Old Style 988 0.25 3 1-
Averages 74 days $466,278 0.58 --- 1,022 0.24 --- ---  

Estimation of Market Value - $517,649

As of today, 06/24/2025, the estimated market value of 21 Seaview Avenue, South Yarmouth considering the above 14 comparable properties is $517,649.

 

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 Route 2812 Pawkannawkut Drive40 Pawkannawkut Drive14 Squanto Road29-31 Seaview Avenue44 Pawkannawkut Drive18-20 Wampanoag Road11 Aspinet Road23-25 Seaview Avenue7 Wampanoag Road1-3 Aspinet Road37 Pawkannawkut Drive7 Aspinet Road17 Aspinet Road747 Route 2817 Seaview Avenue23 Pawkannawkut Drive21 Seaview Avenue33 Pawkannawkut Drive1 Wampanoag Road14-16 Wampanoag Road10-12 Wampanoag Road18-20 Pawkannawkut Drive42 Wampanoag Road8-10 Pawkannawkut Drive26-28 Pawkannawkut Drive8 Wampanoag Road$0$100,000$200,000$300,000$400,000$500,000$600,000$700,000$800,000Total Assessment ($)Total Assessment
# Address Last Sold Sale Price Dist(m) Style LA (sq ft) Lot(ac) BR F-HB
@ 21 Seaview Avenue 7/16/2014 $100 0 Ranch 1,152 0.19 3 1- -
  Criteria
A 23-25 Seaview Avenue 6/18/2004 $160,000 0.0 Duplex 1,248 0.19 4 2-
B 17 Seaview Avenue 6/8/2021 $100 0.0 Ranch 1,140 0.19 3 1-
C 8-10 Pawkannawkut Drive 10/3/2022 $620,000 0.0 Duplex 1,960 0.31 5 4-
D 29-31 Seaview Avenue 7/19/2024 $410,000 0.0 Duplex 1,248 0.19 4 2-
E 20-22 Seaview Avenue 3/15/2013 $143,000 0.0 Duplex 912 0.17 3 2-
F 24-26 Seaview Avenue 11/1/2023 $100 0.0 Duplex 912 0.17 4 2-
G 14-16 Wampanoag Road 11/1/2016 $280,000 0.0 Duplex 2,116 0.34 6 2-
H 28-30 Seaview Avenue 5/6/2019 $255,000 0.0 Duplex 912 0.17 4 2-
I 18-20 Wampanoag Road 2/29/2024 $500,000 0.0 Duplex 1,248 0.19 4 2-
J 12 Pawkannawkut Drive 11/13/2012 $100 0.0 Vacant Land 0.24 -
K 10-12 Wampanoag Road 7/17/2024 $606,000 0.0 Duplex 2,116 0.3 6 2-
L 32-34 Seaview Avenue 10/10/2000 $114,900 0.0 Duplex 912 0.17 2 2-
M 18 Seaview Avenue 4/15/2016 $120,000 0.0 Condominium 432 0 2 1-
N 16 Seaview Avenue 9/20/2002 $115,000 0.0 Condominium 432 0 2 1-
O 1 Howes Road 12/2/2002 $1 0.0 Condominium 432 0 2 1-
P 3 Howes Road 5/8/2006 $158,000 0.0 Condominium 432 0 2 1-
Q 7 Howes Road 10/31/2003 $138,000 0.0 Condominium 432 0 1 1-
R 9 Howes Road 6/20/2014 $74,000 0.0 Condominium 432 0 2 1-
S 5 Thatcher Road 3/6/2017 $135,000 0.0 Condominium 432 0 2 1-
T 7 Thatcher Road 8/12/2014 $82,500 0.0 Condominium 432 0 2 1-
U 0 Willow Street 5/12/2017 $100 0.1 Vacant Land 0.03 -
V 769-A & B Route 28 3/4/2021 $800,000 0.1 Clubs/Lodges 10,167 1.62 -
W 24 Wampanoag Road Unit 1 8/26/2003 $182,000 0.1 Condominium 434 0 2 1-
X 26 Wampanoag Road Unit 2 8/26/2003 $182,000 0.1 Condominium 357 0 1 1-
Y 9-11 Thatcher Road 8/27/2024 $480,000 0.1 Duplex 912 0.18 4 2-
Z 18-20 Pawkannawkut Drive 11/22/2016 $100 0.1 Duplex 2,344 0.25 5 3-
- 15-17 Thatcher Road 12/17/2002 $145,000 0.1 Duplex 912 0.18 2 2-
- 19-21 Thatcher Road 12/9/2022 $365,000 0.1 Duplex 912 0.18 3 2-
- 8 Wampanoag Road 7/5/2024 $100 0.1 Cape Cod 1,820 0.25 3 3-
- 15 Wampanoag Road 6/30/2022 $552,000 0.1 Ranch 1,156 0.18 2 1-
- 41 Seaview Avenue 5/10/2021 $100 0.1 Ranch 1,128 0.26 3 1-
- 23-25 Thatcher Road 5/11/2004 $265,000 0.1 Duplex 912 0.18 4 2-
- 785 Route 28 Unit 1 10/31/2016 $100,000 0.1 Condo Office 837 0 -
- 785 Route 28 Unit 10 8/6/2021 $165,000 0.1 Cottage Condo 833 0 2 1-
- 785 Route 28 Unit 2 12/12/2019 $152,000 0.1 Cottage Condo 756 0 2 1-
- 785 Route 28 Unit 3 9/29/2015 $75,000 0.1 Condo Office 833 0 -
- 785 Route 28 Unit 4 5/30/2017 $89,900 0.1 Cottage Condo 833 0 2 1-
- 785 Route 28 Unit 5 2/1/2022 $225,000 0.1 Cottage Condo 833 0 2 1-
- 785 Route 28 Unit 6 9/1/2023 $150,000 0.1 Cottage Condo 833 0 2 1-
- 785 Route 28 Unit 7 9/30/2020 $152,000 0.1 Cottage Condo 833 0 2 1-
- 785 Route 28 Unit 8 11/15/2023 $1 0.1 Cottage Condo 833 0 2 2-
- 785 Route 28 Unit 9 12/12/2019 $152,000 0.1 Cottage Condo 833 0 2 1-
- 25-27 Wampanoag Road 7/9/2021 $210,000 0.1 Duplex 816 0.19 3 2-
- 28-30 Wampanoag Road 6/30/2010 $188,000 0.1 Duplex 805 0.2 2 2-
- 6 Aspinet Road 8/23/1999 $10 0.1 Cape Cod 1,947 0.15 3 2-1
- 26-28 Pawkannawkut Drive 6/29/2016 $335,000 0.1 Multi Family 3,268 0.41 5 4-
- 1-3 Aspinet Road 1/7/2020 $100 0.1 Duplex 1,290 0.19 4 2-
- 45 Seaview Avenue 1/13/2021 $100 0.1 Ranch 1,008 0.27 3 1-
- 46 Seaview Avenue 3/28/2008 $254,500 0.1 Cape Cod 1,344 0.18 3 1-1
- 759 Route 28 Unit 1 4/25/2025 $1,775,000 0.1 Motel Condo 235 0 1 1-
- 759 Route 28 Unit 10 4/25/2025 $1,775,000 0.1 Motel Condo 235 0 1 1-
- 759 Route 28 Unit 11 4/25/2025 $1,775,000 0.1 Motel Condo 235 0 1 1-
- 759 Route 28 Unit 12 4/25/2025 $1,775,000 0.1 Motel Condo 235 0 1 1-
- 759 Route 28 Unit 14 4/25/2025 $1,775,000 0.1 Motel Condo 235 0 1 1-
- 759 Route 28 Unit 15 4/25/2025 $1,775,000 0.1 Motel Condo 235 0 1 1-
- 759 Route 28 Unit 16 4/25/2025 $1,775,000 0.1 Motel Condo 235 0 1 1-
- 759 Route 28 Unit 17 4/25/2025 $1,775,000 0.1 Motel Condo 345 0 1 1-
- 759 Route 28 Unit 18 4/25/2025 $1,775,000 0.1 Motel Condo 340 0 1 1-
- 759 Route 28 Unit 19 4/25/2025 $1,775,000 0.1 Motel Condo 235 0 1 1-
- 759 Route 28 Unit 2 4/25/2025 $1,775,000 0.1 Motel Condo 235 0 1 1-
- 759 Route 28 Unit 20 4/25/2025 $1,775,000 0.1 Motel Condo 235 0 1 1-
- 759 Route 28 Unit 21 4/25/2025 $1,775,000 0.1 Motel Condo 235 0 1 1-
- 759 Route 28 Unit 22 4/25/2025 $1,775,000 0.1 Motel Condo 235 0 1 1-
- 759 Route 28 Unit 23 4/25/2025 $1,775,000 0.1 Motel Condo 235 0 1 1-
- 759 Route 28 Unit 24 4/25/2025 $1,775,000 0.1 Motel Condo 235 0 1 1-
- 759 Route 28 Unit 25 4/25/2025 $1,775,000 0.1 Motel Condo 235 0 1 1-
- 759 Route 28 Unit 3 4/25/2025 $1,775,000 0.1 Motel Condo 235 0 1 1-
- 759 Route 28 Unit 4 4/25/2025 $1,775,000 0.1 Motel Condo 235 0 1 1-
- 759 Route 28 Unit 5 4/25/2025 $1,775,000 0.1 Motel Condo 235 0 1 1-
- 759 Route 28 Unit 6 4/25/2025 $1,775,000 0.1 Motel Condo 235 0 1 1-
- 759 Route 28 Unit 7 4/25/2025 $1,775,000 0.1 Motel Condo 235 0 1 1-
- 759 Route 28 Unit 8 4/25/2025 $1,775,000 0.1 Motel Condo 235 0 1 1-
- 759 Route 28 Unit 9 4/25/2025 $1,775,000 0.1 Motel Condo 235 0 1 1-
- 29-31 Wampanoag Road 1/29/2021 $331,000 0.1 Duplex 771 0.19 3 2-
- 14 Thatcher Road 3/30/2017 $100 0.1 Ranch 720 0.17 2 1-
- 10 Aspinet Road 7/17/2024 $130,000 0.1 Ranch 750 0.15 2 1-
- 7 Wampanoag Road 7/24/2002 $1 0.1 Ranch 900 0.2 2 1-
- 16 Thatcher Road 2/28/2019 $247,500 0.1 Ranch 720 0.17 2 1-
- 15 Howes Road 9/26/2014 $187,500 0.1 Ranch 720 0.22 2 1-
- 16 Howes Road 6/30/2017 $230,000 0.1 Ranch 720 0.27 2 1-
- 20 Thatcher Road 1/22/2024 $100 0.1 Ranch 720 0.17 2 1-
- 793 Route 28 8/24/2020 $650,000 0.1 Motel 7,072 0.68 -
- 22 Thatcher Road 5/16/2011 $100 0.1 Ranch 1,008 0.17 2 1-
- 48 Seaview Avenue 6/8/2017 $341,500 0.1 Cape Cod 1,080 0.18 3 2-
- 37 Thatcher Road 6/25/2014 $100 0.1 Ranch 1,128 0.18 4 2-
- 7 Aspinet Road 6/11/1996 $1 0.1 Ranch 888 0.21 3 1-1
- 38 Wampanoag Road 6/12/2025 $500,000 0.1 Ranch 936 0.32 3 1-
- 14 Aspinet Road 9/28/1990 $0 0.1 Ranch 900 0.15 2 1-
- 49 Seaview Avenue 8/18/2006 $267,500 0.1 Ranch 1,252 0.27 3 1-1
- 1 Wampanoag Road 3/18/2011 $100 0.1 Ranch 1,112 0.22 3 1-
- 23 Pawkannawkut Drive 12/12/2022 $430,000 0.1 Ranch 1,218 0.37 2 2-
- 770 Route 28 12/1/2021 $5,000,000 0.1 Vacant Land 0.86 -
- 782 Route 28 1/21/2016 $650,000 0.1 Office Bldg 8,851 1.37 -
- 50 Seaview Avenue 9/7/2007 $100 0.1 Ranch 826 0.18 2 1-1
- 41 Thatcher Road 8/18/2020 $325,000 0.1 Ranch 900 0.18 2 1-1
- 0 Route 28 9/30/1960 $0 0.1 Vacant Land 0.03 -
- 22 Howes Road 10/29/2021 $400,000 0.1 Ranch 916 0.24 2 1-
- 11 Aspinet Road 7/16/2015 $100 0.1 Ranch 728 0.21 2 2-
- 37 Wampanoag Road 6/29/2022 $100 0.1 Ranch 720 0.21 2 1-
- 7 Eldridge Road 8/22/2024 $540,000 0.1 Ranch 1,008 0.16 4 1-
- 797 Route 28 9/24/2002 $200,000 0.1 Stores/Apt Com 1,487 0.49 -
- 11 Eldridge Road 2/3/2017 $100 0.1 Ranch 980 0.16 3 1-
- 3 Eldridge Road 6/7/2017 $100 0.1 Ranch 1,056 0.24 3 1-
- 13 Eldridge Road 11/9/2023 $100 0.1 Ranch 720 0.16 2 1-
- 40 Pawkannawkut Drive 1/25/2024 $100 0.1 Ranch 720 0.22 2 1-
- 18 Aspinet Road 10/30/2020 $320,000 0.1 Ranch 720 0.15 2 1-
- 19 Eldridge Road 9/29/2022 $100 0.1 Cape Cod 2,604 0.32 4 3-
- 33 Pawkannawkut Drive 11/7/2014 $195,000 0.1 Ranch 1,362 0.26 2 1-
- 747 Route 28 4/26/2013 $255,000 0.1 Cape Cod 1,348 0.48 3 2-
- 42 Wampanoag Road 8/16/2012 $100 0.1 Ranch 1,200 0.24 3 2-
- 17 Aspinet Road 8/25/2008 $273,000 0.1 Ranch 888 0.19 3 1-
- 41 Wampanoag Road 4/20/2022 $100 0.1 Ranch 1,093 0.24 2 1-
- 55 Seaview Avenue 8/30/2022 $450,000 0.1 Ranch 1,500 0.27 3 2-
- 43 Thatcher Road 7/26/2019 $100 0.1 Ranch 2,108 0.35 2 1-
- 44 Pawkannawkut Drive 3/23/2020 $275,000 0.1 Ranch 720 0.24 2 1-
- 40 Thatcher Road 3/1/2022 $507,000 0.1 Ranch 936 0.18 2 1-
- 26 Howes Road 2/24/2020 $308,000 0.1 Ranch 1,008 0.24 3 1-
- 37 Pawkannawkut Drive 11/23/1992 $0 0.1 Ranch 900 0.26 2 1-
- 22 Aspinet Road 2/28/2006 $238,000 0.1 Ranch 880 0.21 2 1-
- 56 Seaview Avenue Unit 1 11/10/2005 $100 0.1 Condominium 1,023 0 2 1-1
- 56 Seaview Avenue Unit 2 9/5/2006 $195,000 0.1 Condominium 587 0 2 1-
- 14 Squanto Road 10/5/2018 $245,000 0.1 Ranch 720 0.19 2 1-
Averages 3063 days $536,266 0.08 --- 1,024 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
33 27 21 Seaview Avenue