640 BOSTON RD
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Location
640 BOSTON RD
Mblu
121/ 51/ 0/ /
Acct#
4059
Owner
HELFANT, STEPHEN B.
Total Market Value
$532,100
Appraisal
$532,100
PID
4059
Building Count
1
Current Value
Appraisal
Valuation YearImprovementsLandTotal
2026$269,400$262,700$532,100
Assessment
Valuation YearImprovementsLandTotal
2026$269,400$262,700$532,100

Owner of Record
OwnerHELFANT, STEPHEN B.
Co-OwnerHELFANT, ROSE M.
Address640 BOSTON RD
GROTON, MA 01450
Sale Price$1
Certificate
Book & Page 52563/0055
Sale Date04/13/2009
Instrument1A

Ownership History
Ownership History
OwnerSale PriceCertificateBook & PageInstrumentSale Date
HELFANT, STEPHEN B.$1 52563/00551A04/13/2009
HELFANT, STEPHEN B.$1 51571/03961A08/14/2008
HELFANT, STEPHEN B.$1C22705/01211G12/09/1992
HELFANT, STEPHEN B.$0P14230/00741A03/05/1981
HELFANT, THOMAS E.$0E0/0  

Building Information
Building 1 : Section 1
Year Built: 1915
Living Area: 1,496
Replacement Cost: $351,059
Building Percent Good: 68
Replacement Cost
Less Depreciation:
$238,700
Building Attributes
FieldDescription
Style:Conv/ Old Sty
ModelResidential
Grade:Avg (-)
Stories:1.75
Occupancy1
Exterior Wall 1Wood Shingle
Exterior Wall 2 
Roof Structure:Gable/Hip
Roof CoverAsph/F Gls/Cmp
Interior Wall 1Plastered
Interior Wall 2 
Interior Flr 1Hardwood
Interior Flr 2Carpet
Heat FuelOil
Heat Type:Steam
AC Type:None
Total Bedrooms:3 Bedrooms
Total Bthrms:1
Total Half Baths:1
Total Xtra Fixtrs: 
Total Rooms:6
Bath Style:Average
Kitchen Style:02
Extra Kitchens 
Fireplaces 
Bsmt Gar:0
Building Photo Building Photo
Building Layout Building Layout
Building Sub-Areas (sq ft)
CodeDescriptionGross
Area		Living
Area
BASFirst Floor 958 958
TQSThree Quarter Story 672 538
UBMBasement, Unfinished 756 0
   2,386 1,496

Extra Features
Extra Features

No Data for Extra Features


Land
Land Use
Use Code1010
DescriptionSingle Family  
ZoneRA
NeighborhoodR007
Alt Land ApprNo
Category
Land Line Valuation
Size (Acres)4.96
Frontage
Depth
Total Market Land$262,700
Appraised Value$262,700

Outbuildings
Outbuildings
CodeDescriptionSub CodeSub DescriptionSizeValueBldg #
FGR7W/LOFT-HEATED  816.00 SF$14,7001
SHD1SHED FRAME  96.00 SF$7001
SHD1SHED FRAME  600.00 SF$4,5001
SHD1SHED FRAME  1440.00 SF$10,8001
Valuation History
Appraisal
Valuation YearImprovementsLandTotal
2026$269,400$262,700$532,100
2025$236,700$251,800$488,500
2024$208,900$251,800$460,700

Assessment
Valuation YearImprovementsLandTotal
2026$269,400$262,700$532,100
2025$236,700$251,800$488,500
2024$208,900$251,800$460,700

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