30 DUFF ST
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Location
30 DUFF ST
Mblu
542/ 2/ 1025/ /
Acct#
7474
Owner
SWEET, LINDSEY SWEET FRANK R III
Total Market Value
$451,700
PID
7474
Building Count
1
Current Value
Assessment
Valuation YearImprovementsLandTotal
2026$451,700$0$451,700

Owner of Record
OwnerSWEET, LINDSEY SWEET FRANK R III
Co-OwnerMCCOWN-SWEET ROBIN
Address30 DUFF ST UNIT 28
WATERTOWN, MA 02472
Sale Price$556,000
Certificate
Book & Page 84750/452
Sale Date10/17/2025
Instrument1AL

Ownership History
Ownership History
OwnerSale PriceCertificateBook & PageInstrumentSale Date
SWEET, LINDSEY SWEET FRANK R III$556,000 84750/4521AL10/17/2025
CUNNINGHAM EVA$490,000 81337/2751AL03/17/2023
PENA IZABELLA AGOSTINHO$420,000 76187/4161AL11/17/2020
RILEY KAITLYN$324,500 65826/1431AL07/30/2015
LEI LANYU$248,000 59427/1251AL06/29/2012

Building Information
Building 1 : Section 1
Year Built: 1940
Living Area: 874
Replacement Cost: $563,619
Building Percent Good: 68
Replacement Cost
Less Depreciation:
$444,600
Building Attributes
FieldDescription
StyleTownhouse
ModelRes Condo
Interior Wall 1Drywall
Interior Wall 2 
Int Floor 1Hardwood
Int Floor 2 
Heat FuelGas
Heat TypeForced H/A
AC Percent100
Bedrooms2
Full Baths1
Half Baths0
Total Rooms5
Bath RatingAverage
Kitchen RatingGood
Kitchens1
Fireplace(s)0
View/DesirabilityAvg
GradeAverage
Stories 
Residential Units308
Exterior Wall 1 
Exterior Wall 2 
Roof Structure 
Roof Cover 
Cmrcl Units0
Res/Com Units0
Section # 
Parking Spaces 
Section Style 
Foundation 
GradeAverage
Ext Wall 1Brick
FoundationConcrete
Roof StructureGable
Roof CoverAsphalt Sh
Ext Wall 2 
FrameWood
Living Units1
Fireplace RatingA
Building Photo Building Photo
Building Layout Building Layout
Building Sub-Areas (sq ft)
CodeDescriptionGross
Area		Living
Area
BASBase Floor 437 437
FUSFinished Upper Story 437 437
UBMBasement, Unfinished 437 0
   1,311 874

Extra Features
Extra Features
CodeDescriptionSizeValueBldg #
XFRRMRec Room219.00 S.F.$7,1001

Land
Land Use
Use Code1020
DescriptionCONDO  
Zone
NeighborhoodTV
Alt Land ApprNo
Category
Land Line Valuation
Size (Acres)0
Frontage
Depth
Total Market Land$0

Outbuildings
Outbuildings

No Data for Outbuildings

Valuation History
Assessment
Valuation YearImprovementsLandTotal
2025$451,700$0$451,700
2024$465,700$0$465,700
2023$435,000$0$435,000

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