6 Coffin Sias Street, Nantucket, MA 02554

6 Coffin Sias Street Nantucket MA 02554
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Owner Information
Owner 1
Thomas P Forman & Tanya M
Owner 2
Owner's Address
C/O Andi LA Rosa, 2632 Wilshire Blvd #547 Santa Monica, CA 90403
Market Sale Information
Most recent sale date
11/19/2020
Previous sale date
09/10/2010
Transfer document #
C28004-
Previous transfer document
C0023631-0
Grantor
Peter Watrous
Previous grantor
Joseph H Wright
Most recent sale price
$3,226,000.00
Previous sale price
$2,950,000.00
Site Information
Property ID
7314-19
Lot Size
0.25
Use Code
101 - Residential, single family
Zoning
SR1
Building Style
Custom Built
Number of Rooms
Stories
2
Number of Beds
5
Year Built
1991
Number of full baths
5
Condition
Number of half baths
Finished Area
2597
Number of Kitchen
1
Gross Living Area
5972
Number of Fireplaces
Bsmnt floot
Number of parking
Interior walls
Drywall/Sheet
Floor type
Pine/Soft Wood
Solar Hot Water
No
Roof Structure
Gable/Hip
Heating type
Gas
Roof Cover
Asph/F Gls/Cmp
Heating fuel
Forced Air-Duc
Frame type
Air Condition (%)
Sidings
Wood Shingle
Assessment Information
Fiscal Year
2025
Land Value
$1,271,800.00
Total value
$4,416,300.00
Building value
$3,144,500.00
Estimated tax
$14,485.00
Yard improvement value
$0.00
Flood Map MassMapper Google Street View
Certified Mass Appraisal
20082009201020112012201320142015201620172018201920202021202220232024$0$500,000$1,000,000$1,500,000$2,000,000$2,500,000$3,000,000$3,500,000$4,000,000$4,500,000$5,000,000Total Assessment ($)ImprovementsLandBuildingTotal Assessment
Comparable Properties
Mailing Labels $Valuation Report Copy To Clipboard
6 Coffin Sias Street21 Ocean Avenue$4,000,000$4,200,000$4,400,000$4,600,000$4,800,000$5,000,000$5,200,000Subject PropertyTotal Assessment ($)Total Assessment
Address 6 Coffin Sias Street A) 21 Ocean Avenue
Photo
Plan
Map
Proximity 0.4
Last Sold 4/28/2025
Price $5,000,000
Net Living Area 2,087
Stories 2
Sale Price/sft $1,242.20$2395.78
Style Custom BuiltColonial
Age 19911900
Rooms
Bedrooms 55
Full baths 52
Half baths 1
Gross Living Area 59723077
Heating Fuel Forced Air-DucElectr Basebrd
Detached Garage
Lot Size 0.250.13
Roof Cover Asph/F Gls/CmpAsph/F Gls/Cmp
AEM Value - Building $3,144,500.00$736,600
AEM Value - Land $1,271,800.00$4,360,500
AEM Value - Other $0.00$0
AEM Value - Total $4,416,300.00$5,097,100
# Address Last Sold Sale Price Dist(m) Style LA (sq ft) Lot(ac) BR F-HB
@ 6 Coffin Sias Street 11/19/2020 $3,226,000 0 Custom Built 2,597 0.25 5 5- -
  Criteria
A 21 Ocean Avenue 4/28/2025 $5,000,000 0.4 Colonial 2,087 0.13 5 2-1
Averages 31 days $5,000,000 0.36 --- 2,087 0.13 --- ---  

Estimation of Market Value - $5,277,009

As of today, 05/29/2025, the estimated market value of 6 Coffin Sias Street, Nantucket considering the above 1 comparable properties is $5,277,009.

 

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 Property37 Shell Street29 Shell Street0 North Gully Road-Off32 Shell Street0 North Gully Road-Off40 Shell Street26 Shell Street25 Broadway39 Shell Street41 Shell Street22 Broadway24 Broadway28 Shell Street31 Shell Street20 Center Sias Street36 Shell Street18 Center Sias Street42 Shell Street8 King Street38 Shell Street7 King Street29 Broadway6 Coffin Sias Street33 Shell Street11 Pitman Road35 Shell Street27 Shell Street$0$1,000,000$2,000,000$3,000,000$4,000,000$5,000,000$6,000,000$7,000,000$8,000,000$9,000,000$10,000,000Total Assessment ($)Total Assessment
# Address Last Sold Sale Price Dist(m) Style LA (sq ft) Lot(ac) BR F-HB
@ 6 Coffin Sias Street 11/19/2020 $3,226,000 0 Custom Built 2,597 0.25 5 5- -
  Criteria
A 4 Coffin Sias Street 11/17/2017 $1,000,000 0.0 Ranch 2,747 0.23 3 4-
B 8 Coffin Sias Street 7/18/2006 $3,895,000 0.0 Conventional 4,709 0.13 4 5-2
C 13 Pitman Road 12/3/2014 $0 0.0 Colonial 3,049 0.12 3 2-1
D 11 Pitman Road 6/25/2019 $3,250,000 0.0 Custom Built 3,013 0.25 4 3-1
E 2 Sankaty Road 2/25/2022 $0 0.0 Custom Built 2,149 0.18 4 2-1
F 5 Coffin Sias Street 6/15/2022 $4,795,000 0.0 Custom Built 2,108 0.25 4 2-1
G 44 Shell Street 3/8/2013 $0 0.0 Conventional 1,828 0.16 4 1-1
H 42 Shell Street 4/15/2021 $2,825,000 0.0 Cape Cod 3,193 0.13 3 3-1
I 12 Pitman Road 10/22/2013 $2,100,000 0.0 Cape Cod 1,520 0.35 3 3-
J 4 Sankaty Road 3/13/1998 $375,000 0.0 Conventional 1,299 0.05 3 2-
K 40 Shell Street 8/27/2012 $0 0.0 Bungalow 1,692 0.16 4 1-1
L 38 Shell Street 8/23/2010 $0 0.0 Conventional 2,497 0.41 4 3-
M 6 Sankaty Road 12/28/2004 $2,750,000 0.0 Colonial 4,569 0.83 5 4-1
N 7 Pitman Road 7/16/2007 $0 0.0 Custom Built 3,012 0.17 5 4-1
O 12 Coffin Sias Street 1/26/1995 $0 0.1 Cape Cod 2,345 0.35 3 3-
P 6 Pitman Road 12/23/1998 $0 0.1 Conventional 1,608 0.25 4 2-
Q 36 Shell Street 12/23/2009 $1,499,000 0.1 Colonial 3,596 0.18 5 4-1
R 41 Shell Street $0 0.1 Conventional 1,439 0.12 3 3-
S 0 Sankaty Road 10/20/2015 $1,584,800 0.1 Colonial 2,512 0.12 3 3-1
T 1 Sankaty Road 1/4/2019 $0 0.1 Bungalow 708 0.17 2 1-
U 12 Coffin Sias Street Unit 1 1/26/1995 $0 0.1 Vacant Land 0.04 -
V 32 Shell Street 6/13/1990 $0 0.1 Vacant Land 0.41 -
W 9 Coffin Sias Street 12/6/2017 $0 0.1 Bungalow 1,857 0.46 5 3-
X 31 Shell Street 2/19/2020 $0 0.1 Conventional 1,189 0.08 4 2-
Y 3 Sankaty Road 8/1/1995 $200,000 0.1 Conventional 1,030 0.18 3 1-1
Z 4 Pitman Road 4/23/2015 $0 0.1 Colonial 1,596 0.32 4 2-1
- 39 Shell Street $0 0.1 Conventional 1,573 0.12 3 3-
- 14 Coffin Sias Street 10/31/2024 $9,770,000 0.1 Ranch 2,804 0.32 4 3-2
- 7 Lindberg Avenue 12/7/2021 $0 0.1 Vacant Land 0.84 -
- 10 Sankaty Road 12/7/2021 $0 0.1 Conventional 6,171 0.84 4 5-4
- 28 Shell Street 9/26/2014 $867,772 0.1 Antique 2,276 0.13 4 4-1
- 11 King Street 8/12/1991 $10 0.1 Conventional 1,487 0.14 3 2-1
- 29 Shell Street $0 0.1 Vacant Land 0.04 -
- 9 King Street 9/24/2019 $0 0.1 Conventional 2,819 0.11 4 3-1
- 37 Shell Street 12/30/1993 $0 0.1 Outbuildings 0.1 -
- 15 King Street 10/21/2021 $0 0.1 Ranch 1,956 0.18 3 2-1
- 15 Coffin Sias Street 4/22/2024 $85,255 0.1 Conventional 1,926 0.49 3 2-
- 8 Pitman Road 4/23/2015 $0 0.1 Conventional 2,527 0.72 4 2-1
- 7 King Street 3/6/2020 $3,000,000 0.1 Colonial 2,647 0.43 3 3-1
- 26 Shell Street 10/1/1992 $150,000 0.1 Antique 866 0.12 2 1-
- 16 Coffin Sias Street 10/31/2024 $9,770,000 0.1 Outbuildings 0.34 -
- 33 Shell Street 12/30/1993 $0 0.1 Conventional 1,996 0.21 5 4-
- 21 King Street 2/15/2023 $2,925,000 0.1 Cape Cod 1,268 0.15 2 2-
- 10 Lindberg Avenue 10/19/2012 $0 0.1 Custom Built 4,664 0.83 5 4-1
- 3 Nosegay Lane 1/26/1994 $10 0.1 Colonial 2,699 0.56 6 5-
- 25 Shell Street 10/8/2013 $0 0.1 Bungalow 1,093 0.05 3 2-
- 19 Coffin Sias Street 4/22/2024 $85,255 0.1 Vacant Land 0.46 -
- 35 Shell Street 12/30/1993 $0 0.1 Colonial 5,373 0.35 5 5-
- 1 Nosegay Lane 8/16/2001 $0 0.1 Custom Built 4,312 0.22 5 6-
- 27 Shell Street 5/23/2013 $222,222 0.1 Custom Built 4,810 0.43 5 5-1
- 1 Baxter Road 11/21/2007 $7,000,000 0.1 Custom Built 4,871 0.95 5 5-3
- 25 King Street 12/23/2021 $0 0.1 Custom Built 2,070 0.15 3 4-
- 12 King Street 6/10/2019 $0 0.1 Ranch 1,512 0.22 3 2-
- 16 King Street 1/24/2025 $1,830,000 0.1 Conventional 1,253 0.18 4 1-
- 10 King Street 12/13/2011 $1,300,000 0.1 Conventional 1,669 0.2 3 1-
- 18 King Street 11/23/2022 $0 0.1 Colonial 2,073 0.25 3 4-1
- 4 King Street 2/16/2021 $0 0.1 Ranch 528 0.03 1 1-
- 18 Coffin Sias Street 4/16/2007 $0 0.1 Custom Built 1,632 0.15 3 2-
- 6 King Street 3/11/2021 $0 0.1 Cape Cod 896 0.08 3 2-
- 5 South Road 12/30/2009 $0 0.1 Colonial 2,112 0.21 4 3-
- 20 Coffin Sias Street 12/18/2020 $2,500,000 0.1 Custom Built 2,370 0.11 4 4-1
- 2 King Street 9/13/2019 $1,280,000 0.1 Bungalow 1,064 0.06 3 2-
- 20 Center Sias Street 12/6/2022 $0 0.1 Antique 1,993 0.11 5 2-1
- 29 King Street 9/25/2012 $12,578 0.1 Conventional 3,355 0.16 6 4-1
- 29 Broadway 12/9/2004 $0 0.1 Antique 3,544 0.21 4 3-1
- 26 Broadway 8/29/2006 $1,350,000 0.1 Antique 1,193 0.1 4 1-1
- 8 King Street 10/9/2001 $0 0.1 Conventional 1,884 0.31 3 2-
- 27 West Sankaty Road 9/4/2015 $1,675,000 0.1 Bungalow 1,220 0.3 4 1-
- 18 Shell Street 10/23/2015 $0 0.1 Cottage 650 0.07 1 1-
- 21 West Sankaty Road 1/13/2020 $0 0.1 Ranch 1,251 0.25 3 2-
- 0 North Gully Road-Off 3/17/2021 $1,850,000 0.1 Vacant Land 0.23 -
- 11 Sankaty Road 4/22/1986 $0 0.1 Guest Quarters 1,192 0.21 2 2-
- 20 Shell Street 2/5/2025 $1,715,000 0.1 Conventional 894 0.07 2 1-
- 7 South Road 3/31/2005 $1,300,000 0.1 Cape Cod 1,482 0.2 3 3-
- 26 King Street 10/22/1996 $486,500 0.1 Bungalow 1,696 0.19 3 2-
- 2 North Sias Road 11/1/2021 $1,700,000 0.1 Cape Cod 806 0.23 3 1-1
- 0 North Gully Road-Off 12/30/1993 $0 0.1 Vacant Land 0.11 -
- 35 King Street 6/10/2024 $2,925,000 0.1 Conventional 1,609 0.11 4 2-1
- 22 Coffin Sias Street 8/19/2020 $0 0.1 Ranch 1,068 0.11 1 1-
- 16 Shell Street 1/13/2011 $0 0.1 Antique 1,150 0.14 4 1-1
- 33 West Sankaty Road 11/6/2014 $865,000 0.1 Bungalow 1,024 0.12 3 2-
- 24 Broadway 8/18/2020 $0 0.1 Conventional 1,849 0.05 5 2-1
- 31 West Sankaty Road 12/24/2013 $0 0.1 Cape Cod 1,148 0.12 4 2-
- 27 Broadway 10/7/2021 $0 0.1 Antique 2,340 0.12 3 3-
- 4 Butterfly Lane 12/26/2012 $0 0.1 Colonial 5,018 0.21 6 4-1
- 18 Center Sias Street 10/18/2021 $1,300,000 0.1 Conventional 1,978 0.06 5 2-1
- 4 North Sias Road 1/29/1993 $300,000 0.1 Cape Cod 2,085 0.21 4 3-1
- 9 South Road 8/3/2010 $0 0.1 Vacant Land 0.3 -
- 15 Sankaty Road 4/22/1986 $0 0.1 Custom Built 3,866 0.21 4 3-
- 22 Broadway 9/30/2015 $1,350,000 0.1 Conventional 1,193 0.04 4 2-
- 25 Broadway 6/30/2015 $800,000 0.1 Antique 2,652 0.03 4 4-1
- 21 Coffin Sias Street 9/16/2011 $0 0.1 Colonial 3,504 0.94 4 3-
Averages 4874 days $898,787 0.08 --- 1,981 0.24 --- ---  
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
7314 19 6 Coffin Sias Street