550 ARSENAL ST
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Location
550 ARSENAL ST
Mblu
1234/ 2/ 0/ /
Acct#
3260
Owner
ND WATERTOWN MALL LLC
Total Market Value
$66,202,000
PID
3260
Building Count
2
Current Value
Assessment
Valuation YearImprovementsLandTotal
2026$25,615,400$40,586,600$66,202,000

Owner of Record
OwnerND WATERTOWN MALL LLC
Co-Owner
Address2310 WASHINGTON ST
NEWTON , MA 02462
Sale Price$100,250,000
Certificate
Book & Page 84743/69
Sale Date10/16/2025
Instrument1C

Ownership History
Ownership History
OwnerSale PriceCertificateBook & PageInstrumentSale Date
ND WATERTOWN MALL LLC$100,250,000 84743/691C10/16/2025
ARE- MA REGION NO.90 HOLDING, $130,000,000 77574/5691C04/21/2021
WATERTOWN MALL ASSOC $3,225,000 15102/1611AL07/07/1983

Building Information
Building 1 : Section 1
Year Built: 1975
Living Area: 264,549
Replacement Cost: $30,231,052
Building Percent Good: 76
Replacement Cost
Less Depreciation:
$22,745,800
Building Attributes
FieldDescription
StyleShop Mall
ModelCommercial
GradeGood (+)
Stories1
Exterior Wall 1Conc Block
Exterior Wall 2 
Roof StructureGable
Roof CoverTar+gravel
Int Wall 1Drywall
Int Wall 2 
Int Floor 1Ceramic/Ston
Int Floor 2Carpet
Heat FuelElectric
Heat TypeForced H/A
AC Percent100
Full Baths0
Half Baths12
FrameWood
Plumbing 
Wall Height8.00
Fireplace(s)0
Fireplace RatingAverage
Kitchen RatingGood
% Sprinkler100
Half Bath RatingGood
Living Units24
Full Bath RatingNone
Kitchens3
Bsmt Garage0
FoundationSlab
Building Photo Building Photo
Building Layout Building Layout
Building Sub-Areas (sq ft)
CodeDescriptionGross
Area		Living
Area
BASBase Floor 264,549 264,549
EFPPorch, Enclosed 882 0
   265,431 264,549
Building 2 : Section 1
Year Built: 1983
Living Area: 3,410
Replacement Cost: $864,951
Building Percent Good: 92
Replacement Cost
Less Depreciation:
$795,800
Building Attributes : Bldg 2 of 2
FieldDescription
StyleBank
ModelCommercial
GradeGood
Stories1
Exterior Wall 1Brick Venr
Exterior Wall 2 
Roof StructureGable
Roof CoverAsphalt Sh
Int Wall 1Drywall
Int Wall 2 
Int Floor 1Ceramic/Ston
Int Floor 2 
Heat FuelGas
Heat TypeForced H/A
AC Percent100
Full Baths0
Half Baths2
FrameWood
Plumbing 
Wall Height8.00
Fireplace(s)0
Fireplace RatingAverage
Kitchen RatingGood
% Sprinkler100
Half Bath RatingGood
Living Units1
Full Bath RatingNone
Kitchens1
Bsmt Garage0
FoundationSlab
Building Photo Building Photo
Building Layout Building Layout
Building Sub-Areas (sq ft)
CodeDescriptionGross
Area		Living
Area
BASBase Floor 3,410 3,410
EFPPorch, Enclosed 144 0
   3,554 3,410

Extra Features
Extra Features
CodeDescriptionSizeValueBldg #
ATM1Automatc Tellr2.00 UNITS$110,4002
VLT1Vault-Avg400.00 S.F.$50,8002
VLT1Vault-Avg600.00 S.F.$76,2002
CLR2Freezer Temps192.00 S.F.$5,3001
MEZ2Finished3837.00 S.F.$96,2001
CLR1COMM Cooler1744.00 S.F.$37,1001
CLR1COMM Cooler80.00 S.F.$3,4001

Land
Land Use
Use Code323C
DescriptionSHOPCTR  
Zone
NeighborhoodCE
Alt Land ApprNo
Category
Land Line Valuation
Size (Acres)17.85
Frontage
Depth
Total Market Land$40,586,600

Outbuildings
Outbuildings
CodeDescriptionSub CodeSub DescriptionSizeValueBldg #
PAV1Paving-Asphalt  500000.00 S.F$1,600,0001
LT1Lights-In W/Pl  14.00 UNITS$12,6001
SGN3W/Int Lights  75.00 S.F$7,8001
LT2W/Double Light  1.00 UNITS$30,0001
PAV1Paving-Asphalt  3000.00 S.F$11,0002
SGN1Sign-1 Sd W/M  100.00 S.F$3,5002
FN1Fence-4' Chain  140.00 L.F.$3,1001
Valuation History
Assessment
Valuation YearImprovementsLandTotal
2025$26,605,100$40,586,600$67,191,700
2024$30,931,700$34,145,500$65,242,700
2023$29,706,900$32,812,500$62,684,900

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