21 MASON ST
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Location
21 MASON ST
Mblu
14/ / 143A/ /
Acct#
Owner
DERMOVSESIAN ARLENE
Total Market Value
$1,232,000
PID
1694
Building Count
1
Current Value
Assessment
Valuation YearImprovementsLandTotal
2026$437,000$795,000$1,232,000

Owner of Record
OwnerDERMOVSESIAN ARLENE
Co-OwnerDERMOVSESIAN ARTO
Address28 LAWNDALE ST
BELMONT, MA 02465
Sale Price$1
Certificate
Book & Page 01594/0095
Sale Date09/23/2022
Instrument1A

Ownership History
Ownership History
OwnerSale PriceCertificateBook & PageInstrumentSale Date
DERMOVSESIAN ARLENE $1 01594/00951A09/23/2022
DERMOVSESIAN ARA &$525,000 01244/01040011/02/2001
CLAPP JUDITH A$65,500 00849/0134 05/01/1974

Building Information
Building 1 : Section 1
Year Built: 1970
Living Area: 1,326
Replacement Cost: $577,505
Building Percent Good: 75
Replacement Cost
Less Depreciation:
$433,000
Building Attributes
FieldDescription
Style:CONTEMP.
ModelResidential
Grade:C-
Stories:1
Occupancy1
Exterior Wall 1VERT. SIDING
Exterior Wall 2 
Roof Structure:GABLE/HIP
Roof CoverASPH/FBGL/COMP
Interior Wall 1DRYWALL/SHTRK
Interior Wall 2 
Interior Flr 1HARDWOOD
Interior Flr 2WW/CARPET
Heat FuelOIL
Heat Type:HOT WATER
AC Type:CENTRAL
Total Bedrooms:5 Bedrooms
Total Bthrms:2
Total Half Baths:0
Total Xtra Fixtrs: 
Total Rooms:6
Bath Style: 
Kitchen Style: 
Building Photo Building Photo
Building Layout Building Layout
Building Sub-Areas (sq ft)
CodeDescriptionGross
Area		Living
Area
BASFirst Floor 1,326 1,326
FCPCarport 784 0
FOPPorch, Open, Finished 120 0
SFBLower Level Finished 650 0
UBMBasement, Unfinished 676 0
WDKDeck, Wood 312 0
   3,868 1,326

Extra Features
Extra Features
CodeDescriptionSizeBldg #
FPL1FIREPLACE 1 ST1.00 UNITS1

Land
Land Use
Use Code1010
DescriptionSingle Fam MDL-01  
ZoneRS
Neighborhood30
Alt Land ApprNo
Category
Land Line Valuation
Size (Sqr Feet)22905
Frontage133
Depth0
Total Market Land$795,000

Outbuildings
Outbuildings
CodeDescriptionSub CodeSub DescriptionSizeBldg #
SHD1SHED FRAME  120.00 S.F.1
Valuation History
Assessment
Valuation YearImprovementsLandTotal
2026$437,000$795,000$1,232,000
2025$435,000$757,000$1,192,000
2024$401,000$721,000$1,122,000
2023$356,000$656,000$1,012,000

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