51 Siasconset Avenue, Dennis Port, MA 02639

51 Siasconset Avenue Dennis Port MA 02639
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Owner Information
Owner 1
Tonya G Flagg
Owner 2
Owner's Address
51 Siasconset Avenue Dennisport, MA 02639
Market Sale Information
Most recent sale date
9/18/2006
Previous sale date
8/3/2001
Transfer document #
(181112)-
Previous transfer document
(162362)
Grantor
Richard Ryan
Previous grantor
Helena A Wasnewsky
Most recent sale price
$0.00
Previous sale price
$120,000.00
Site Information
Property ID
54-45-0
Lot Size
0.11
Use Code
101 - Residential, single family
Zoning
Building Style
Ranch
Number of Rooms
4
Stories
1
Number of Beds
2
Year Built
1955
Number of full baths
1
Condition
Number of half baths
Finished Area
624
Number of Kitchen
Gross Living Area
Number of Fireplaces
Bsmnt floot
Number of parking
Interior walls
Wall Board
Floor type
W/W Carpet
Solar Hot Water
No
Roof Structure
Gable
Heating type
Forced Air
Roof Cover
Asphalt Shingle
Heating fuel
Gas
Frame type
Wood Frame
Air Condition (%)
Sidings
Wood Shingles
Assessment Information
Fiscal Year
2025
Land Value
$191,800.00
Total value
$404,600.00
Building value
$211,700.00
Estimated tax
$1,751.00
Yard improvement value
$1,100.00
Flood Map MassMapper Google Street View
Certified Mass Appraisal
19961997199819992000200120022003200420052006200720082009201020112012201320142015201620172018201920202021202220232024$0$50,000$100,000$150,000$200,000$250,000$300,000$350,000$400,000$450,000Total Assessment ($)ImprovementsLandBuildingTotal Assessment
Comparable Properties
Mailing Labels $Valuation Report
Subject Property21 Holiday Lane11 Myrtle Lane255 Main Street51 Siasconset Avenue32 Holiday Lane7 Bassett Lane69-C Glendon Road18 Grindell Avenue18 Manning Road54 Depot Street15 Ocean Drive$0$100,000$200,000$300,000$400,000$500,000$600,000Total Assessment ($)Total Assessment
Address 51 Siasconset Avenue A) 21 Holiday LaneB) 7 Bassett LaneC) 32 Holiday LaneD) 15 Ocean DriveE) 255 Main StreetF) 69-C Glendon RoadG) 11 Myrtle LaneH) 18 Grindell AvenueI) 54 Depot StreetJ) 18 Manning Road
Photo
Plan
Map
Proximity 0.20.20.20.40.50.50.50.60.91.0
Last Sold 2/6/202512/3/20245/14/20254/11/202512/20/20242/6/20252/7/20251/21/20252/13/20254/11/2025
Price $524,000$501,000$535,000$590,000$380,000$487,500$456,000$172,000$440,000$600,000
Net Living Area 608676648765672612674656660720
Stories 111111.51111
Sale Price/sft $0.00$861.84$741.12$825.62$771.24$565.48$796.57$676.56$262.20$666.67$833.33
Style RanchCottageRanchRanchRanchRanchCapeRanchRanchRanchRanch
Age 19551940196019601957194519501960195019301959
Rooms 44454454454
Bedrooms 22232232212
Full baths 11111111111
Half baths 1
Gross Living Area
Heating Fuel GasElectricGasGasGasOilGasElectricGasGasGas
Detached Garage
Lot Size 0.110.140.120.070.080.250.060.110.060.090.11
Roof Cover Asphalt ShingleAsphalt ShingleAsphalt ShingleAsphalt ShingleAsphalt ShingleAsphalt ShingleAsphalt ShingleAsphalt ShingleAsphalt ShingleAsphalt ShingleAsphalt Shingle
AEM Value - Building $211,700.00$163,800$243,900$225,200$268,500$260,900$189,200$175,100$205,100$231,000$310,200
AEM Value - Land $191,800.00$197,000$179,700$184,800$266,500$131,200$261,600$191,800$261,600$269,000$178,100
AEM Value - Other $1,100.00$2,800$2,000$1,100$1,100$0$0$500$1,100$1,700$0
AEM Value - Total $404,600.00$363,600$425,600$411,100$536,100$392,100$450,800$367,400$467,800$501,700$488,300
# Address Last Sold Sale Price Dist(m) Style LA (sq ft) Lot(ac) BR F-HB
@ 51 Siasconset Avenue 9/18/2006 $0 0 Ranch 624 0.11 2 1- -
  Criteria
A 21 Holiday Lane 2/6/2025 $524,000 0.2 Cottage 608 0.14 2 1-1
B 7 Bassett Lane 12/3/2024 $501,000 0.2 Ranch 676 0.12 2 1-
C 32 Holiday Lane 5/14/2025 $535,000 0.2 Ranch 648 0.07 3 1-
D 15 Ocean Drive 4/11/2025 $590,000 0.4 Ranch 765 0.08 2 1-
E 255 Main Street 12/20/2024 $380,000 0.5 Ranch 672 0.25 2 1-
F 69-C Glendon Road 2/6/2025 $487,500 0.5 Cape 612 0.06 3 1-
G 11 Myrtle Lane 2/7/2025 $456,000 0.5 Ranch 674 0.11 2 1-
H 18 Grindell Avenue 1/21/2025 $172,000 0.6 Ranch 656 0.06 2 1-
I 54 Depot Street 2/13/2025 $440,000 0.9 Ranch 660 0.09 1 1-
J 18 Manning Road 4/11/2025 $600,000 1.0 Ranch 720 0.11 2 1-
Averages 95 days $468,550 0.49 --- 669 0.11 --- ---  

Estimation of Market Value - $433,690

As of today, 05/21/2025, the estimated market value of 51 Siasconset Avenue, Dennis Port considering the above 10 comparable properties is $433,690.

 

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
Subject Property51 Siasconset Avenue58 Kibby Lane88 Kibby Lane79 Kibby Lane89 Kibby Lane94 Kibby Lane83 Kibby Lane98 Cornell Drive108 Kibby Lane74 Kibby Lane104 Kibby Lane98 Kibby Lane102 Cornell Drive90 Cornell Drive97 Kibby Lane94 Cornell Drive84 Cornell Drive103 Kibby Lane110 Cornell Drive109 Kibby Lane73 Kibby Lane93 Kibby Lane114 Cornell Drive69 Kibby Lane62 Kibby Lane68 Kibby Lane106 Cornell Drive$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
@ 51 Siasconset Avenue 9/18/2006 $0 0 Ranch 624 0.11 2 1- -
  Criteria
A 49 Siasconset Avenue 8/26/2014 $0 0.0 Ranch 624 0.11 2 1-
B 53 Siasconset Avenue 6/1/2020 $0 0.0 Ranch 650 0.11 2 1-
C 58 Cynthia Lane 2/27/2018 $0 0.0 Ranch 1,120 0.17 2 1-1
D 57 Siasconset Avenue 9/16/2019 $320,000 0.0 Ranch 650 0.11 2 1-
E 45 Siasconset Avenue 9/19/2014 $215,000 0.0 Ranch 624 0.11 2 1-
F 64 Cynthia Lane 9/22/2017 $287,000 0.0 Ranch 1,040 0.17 3 1-1
G 59 Siasconset Avenue 3/10/1997 $69,000 0.0 Ranch 680 0.1 2 2-
H 43 Siasconset Avenue 8/5/2015 $0 0.0 Ranch 795 0.11 2 1-
I 59 Cynthia Lane 6/29/2009 $0 0.0 Ranch 1,056 0.17 3 1-1
J 65 Cynthia Lane 12/24/2002 $226,000 0.0 Colonial 1,260 0.17 3 2-
K 41 Siasconset Avenue 7/22/1999 $0 0.0 Ranch 650 0.11 2 1-
L 61 Siasconset Avenue 6/4/1985 $65,960 0.0 Ranch 650 0.11 2 1-
M 52 Cynthia Lane 9/12/1974 $0 0.0 0.17 -
N 10 Siasconset Avenue 1/14/1975 $0 0.0 6.86 -
O 53 Cynthia Lane 2/27/2024 $0 0.0 Ranch 1,104 0.17 3 1-1
P 43 Captain Chase Road 7/2/1999 $0 0.0 Ranch 864 0.1 2 1-
Q 72 Cynthia Lane 6/19/2020 $376,000 0.0 Ranch 1,040 0.22 3 1-1
R 63 Siasconset Avenue 10/28/2022 $440,000 0.0 Ranch 624 0.11 2 1-
S 39 Siasconset Avenue 6/5/2006 $178,500 0.0 Ranch 624 0.1 2 1-
T 39 Captain Chase Road 10/26/2020 $410,000 0.0 Ranch 952 0.13 2 1-
U 45 Captain Chase Road 9/13/2005 $325,000 0.0 Ranch 864 0.1 2 1-
V 35 Captain Chase Road 3/4/2019 $0 0.1 Cape 1,008 0.17 3 1-
W 71 Cynthia Lane 10/15/2012 $0 0.1 Ranch 1,608 0.17 3 2-
X 97-A Cynthia Lane 1/24/2013 $0 0.1 1.54 -
Y 49 Captain Chase Road 5/23/2014 $249,900 0.1 Ranch 952 0.1 2 1-
Z 65 Siasconset Avenue 9/19/2017 $167,000 0.1 Ranch 624 0.11 2 1-
- 37 Siasconset Avenue 12/17/1993 $76,500 0.1 Ranch 832 0.11 2 1-
- 31 Captain Chase Road 5/3/2017 $0 0.1 Cape 1,344 0.14 3 2-
- 51 Captain Chase Road 3/31/2017 $0 0.1 Cape 1,356 0.09 4 2-
- 44 Cynthia Lane 6/25/2015 $324,500 0.1 Ranch 1,120 0.17 4 2-1
- 45 Cynthia Lane 12/29/1975 $0 0.1 Ranch 1,056 0.17 3 1-
- 35 Siasconset Avenue 6/20/2003 $262,500 0.1 Cape 1,196 0.11 3 1-
- 44 Captain Chase Road 11/2/2007 $315,000 0.1 Ranch 1,204 0.15 2 2-
- 46 Captain Chase Road 12/13/1999 $0 0.1 Ranch 1,056 0.13 2 1-
- 55 Captain Chase Road 7/20/2023 $0 0.1 Ranch 936 0.1 2 1-
- 84 Kibby Lane 6/30/2006 $305,000 0.1 Ranch 992 0.15 3 1-
- 27 Captain Chase Road 3/27/2017 $0 0.1 Ranch 1,144 0.15 3 2-
- 79 Cynthia Lane 7/13/2004 $350,000 0.1 Cape 1,524 0.17 4 2-
- 78 Kibby Lane 11/13/2023 $0 0.1 Ranch 1,102 0.15 3 1-
- 88 Kibby Lane 6/29/2004 $0 0.1 Ranch 992 0.15 3 1-
- 64 Kibby Lane 12/22/2015 $0 0.1 Ranch 1,192 2.1 3 2-
- 69 Siasconset Avenue 5/12/1989 $98,000 0.1 Ranch 650 0.11 2 1-
- 31 Siasconset Avenue 6/19/2015 $0 0.1 Ranch 988 0.11 2 1-
- 2 Quarter Master Row 4/27/2023 $1 0.1 Ranch 960 0.14 3 1-
- 57 Captain Chase Road 6/13/2013 $294,650 0.1 Ranch 936 0.1 2 1-
- 4 Third Mate Row 3/27/2012 $0 0.1 Ranch 960 0.13 3 1-
- 3 Quarter Master Row 12/9/2015 $0 0.1 Ranch 1,268 0.13 2 1-
- 74 Kibby Lane 3/7/2018 $0 0.1 Ranch 992 0.15 3 1-
- 54 Captain Chase Road 9/5/2012 $0 0.1 Ranch 920 0.15 3 1-
- 94 Kibby Lane 4/28/2011 $250,000 0.1 Ranch 1,008 0.15 3 1-1
- 23 Captain Chase Road 12/23/2013 $280,000 0.1 Ranch 1,232 0.14 3 2-
- 3 Marks End 12/2/2014 $0 0.1 Ranch 1,184 0.15 3 1-
- 62 Kibby Lane 11/12/2015 $0 0.1 Ranch 1,360 0.4 3 2-
- 71 Siasconset Avenue 10/31/2006 $0 0.1 Ranch 624 0.11 2 1-
- 39 Cynthia Lane 11/6/2023 $600,000 0.1 Ranch 1,350 0.18 3 1-
- 29 Siasconset Avenue 9/11/2023 $0 0.1 Ranch 624 0.1 2 1-
- 38 Cynthia Lane 7/14/2000 $107,000 0.1 Cape 1,411 0.17 2 1-
- 61 Captain Chase Road 5/14/2019 $360,000 0.1 Ranch 936 0.1 3 1-
- 84 Cynthia Lane 6/12/2013 $0 0.1 Ranch 1,320 0.21 3 1-1
- 8 Third Mate Row 4/8/1982 $0 0.1 Ranch 984 0.13 2 1-
- 5 Quarter Master Row 7/11/2022 $1 0.1 Ranch 885 0.13 2 1-1
- 3 Third Mate Row 11/8/2023 $392,500 0.1 Ranch 984 0.13 2 1-
- 6 Quarter Master Row 12/20/2017 $330,000 0.1 Ranch 1,182 0.15 3 2-1
- 98 Kibby Lane 9/15/1997 $105,000 0.1 Ranch 992 0.15 3 1-
- 89 Kibby Lane 7/21/2022 $565,000 0.1 Ranch 992 0.14 3 1-
- 83 Kibby Lane 10/10/2017 $305,000 0.1 Ranch 982 0.15 3 1-
- 58 Captain Chase Road 5/4/1990 $112,000 0.1 Ranch 768 0.14 2 1-
- 68 Kibby Lane 12/15/2006 $310,000 0.1 Ranch 1,150 0.21 3 3-
- 85 Cynthia Lane 5/24/2017 $339,900 0.1 Ranch 1,152 0.17 3 2-
- 75 Siasconset Avenue 12/14/2007 $250,000 0.1 Ranch 600 0.11 2 1-
- 21 Captain Chase Road 6/17/2021 $0 0.1 0.15 -
- 27 Siasconset Avenue 9/30/2014 $0 0.1 Ranch 624 0.1 2 1-
- 93 Kibby Lane 9/14/2007 $230,000 0.1 Colonial 1,904 0.15 4 2-
- 79 Kibby Lane 2/3/2014 $0 0.1 Ranch 992 0.15 3 1-
- 5 Marks End 9/29/2021 $370,500 0.1 Ranch 1,080 0.15 2 1-
- 63 Captain Chase Road 7/1/2011 $233,000 0.1 Ranch 936 0.1 3 1-
- 7 Third Mate Row 8/29/2019 $0 0.1 Ranch 1,124 0.13 2 1-
- 4 Second Mate Row 12/27/2005 $300,000 0.1 Ranch 1,040 0.14 3 1-
- 9 Quarter Master Row 12/11/2015 $0 0.1 Ranch 864 0.14 3 1-
- 22 Captain Chase Road 1/5/2018 $0 0.1 Ranch 720 0.1 2 1-
- 49 Lorree Lane 7/10/2006 $0 0.1 Ranch 1,229 0.17 3 2-
- 97 Kibby Lane 2/7/2014 $0 0.1 Ranch 992 0.14 3 1-
- 73 Kibby Lane 10/1/2021 $676,000 0.1 Ranch 1,103 0.15 3 1-1
- 77 Siasconset Avenue 4/30/2002 $0 0.1 Ranch 624 0.1 2 1-
- 25 Siasconset Avenue 6/21/1991 $92,500 0.1 Ranch 728 0.11 2 1-
- 10 Quarter Master Row 1/30/2023 $1 0.1 960 0.15 3 1-
- 104 Kibby Lane 7/7/2009 $0 0.1 Ranch 992 0.15 3 1-
- 17 Captain Chase Road 6/17/2021 $0 0.1 Ranch 1,344 0.15 3 2-
- 67 Captain Chase Road 10/1/2013 $225,000 0.1 Ranch 936 0.11 2 1-
- 20 Captain Chase Road 3/8/2021 $0 0.1 Ranch 768 0.11 2 1-
- 8 Second Mate Row 6/30/2005 $279,000 0.1 Ranch 768 0.14 2 1-
- 102 Cornell Drive 11/8/2021 $461,000 0.1 Ranch 1,102 0.21 3 1-
- 98 Cornell Drive 7/29/1988 $120,000 0.1 Ranch 992 0.21 3 1-
- 9 Marks End 3/25/2010 $0 0.1 Ranch 840 0.14 2 1-
- 41 Lorree Lane 10/6/2017 $0 0.1 Ranch 1,128 0.15 3 1-
- 31 Cynthia Lane 6/3/1992 $0 0.1 Colonial 1,884 0.2 6 2-
- 106 Cornell Drive 11/29/2018 $0 0.1 Ranch 1,697 0.22 4 2-1
- 94 Cornell Drive 1/18/2022 $540,000 0.1 Ranch 1,037 0.22 3 2-
- 32 Cynthia Lane 10/18/2010 $0 0.1 Ranch 1,048 0.17 3 2-
- 103 Kibby Lane 11/5/2004 $315,000 0.1 Ranch 1,008 0.14 3 1-
- 69 Kibby Lane 8/31/2012 $283,500 0.1 Ranch 1,102 0.16 3 1-1
- 66 Captain Chase Road 5/22/2012 $0 0.1 Ranch 768 0.13 2 1-
- 79 Siasconset Avenue 12/9/2019 $284,000 0.1 Ranch 650 0.11 2 1-
- 21 Siasconset Avenue 1/17/2019 $0 0.1 Ranch 962 0.11 2 1-
- 110 Cornell Drive 10/17/2018 $0 0.1 Ranch 1,102 0.21 3 1-
- 58 Kibby Lane 2/14/2019 $0 0.1 Ranch 800 0.14 2 1-
- 90 Cornell Drive 6/7/2023 $1 0.1 Ranch 1,037 0.21 3 2-
- 92 Cynthia Lane 12/9/2024 $350,000 0.1 Ranch 1,052 0.18 3 1-1
- 91 Cynthia Lane 8/29/2023 $625,000 0.1 Ranch 1,424 0.17 3 2-
- 16 Captain Chase Road 7/17/2024 $494,000 0.1 Ranch 872 0.12 3 1-
- 15 Ezras Path 5/18/2001 $130,900 0.1 Ranch 1,076 0.18 3 1-
- 69 Captain Chase Road 3/20/1998 $107,000 0.1 Ranch 936 0.1 3 1-
- 37 Lorree Lane 12/19/2006 $0 0.1 Ranch 912 0.16 3 1-1
- 13 Captain Chase Road 9/28/2018 $0 0.1 Ranch 912 0.15 2 1-
- 108 Kibby Lane 12/14/2016 $280,000 0.1 Ranch 992 0.14 3 1-
- 114 Cornell Drive 3/22/2007 $295,000 0.1 Ranch 1,282 0.22 3 2-
- 3 Second Mate Row 6/17/2016 $0 0.1 Ranch 960 0.14 3 2-
- 84 Cornell Drive 7/29/2010 $0 0.1 Ranch 1,112 0.22 3 1-1
- 27 Easy Street 9/30/2004 $0 0.1 Ranch 728 0.12 2 1-
- 31 Easy Street 5/8/2017 $298,000 0.1 Ranch 954 0.13 3 1-
- 81 Siasconset Avenue 11/13/2015 $0 0.1 Ranch 600 0.11 2 1-
- 19 Siasconset Avenue 7/24/1995 $85,500 0.1 Ranch 912 0.11 2 1-
- 23 Easy Street 2/3/2021 $0 0.1 Ranch 728 0.12 2 1-
- 35 Easy Street 9/10/2007 $0 0.1 Cape 1,368 0.15 3 2-
- 109 Kibby Lane 7/23/1998 $120,000 0.1 Ranch 992 0.14 3 1-
Averages 5105 days $134,855 0.08 --- 970 0.23 --- ---  
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
054 045 0 51 Siasconset Avenue