45 WINTHROP ST
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Location
45 WINTHROP ST
Mblu
8D/ 2168/ / /
Acct#
7010
Owner
WHALE ROCK LLC
Assessment
$3,019,100
Appraisal
$3,019,100
PID
7010
Building Count
1
Current Value
Appraisal
Valuation YearImprovementsLandTotal
2026$2,291,700$727,400$3,019,100
Assessment
Valuation YearImprovementsLandTotal
2026$2,291,700$727,400$3,019,100

Owner of Record
OwnerWHALE ROCK LLC
Co-Owner
Address187 WEST ST
CARLISLE, MA 01741
Sale Price$2,300,000
Certificate
Book & Page 46705/0295
Sale Date12/21/2005
Instrument00

Ownership History
Ownership History
OwnerSale PriceCertificateBook & PageInstrumentSale Date
WHALE ROCK LLC$2,300,000 46705/02950012/21/2005
WINTHROP AVE ASSOCIATES$0 15387/0063 12/01/1983

Building Information
Building 1 : Section 1
Year Built: 1923
Living Area: 33,340
Replacement Cost: $3,370,526
Building Percent Good: 65
Replacement Cost
Less Depreciation:
$2,190,800
Building Attributes
FieldDescription
Style:Research/Devel
ModelIndustrial
Grade03
Stories:2
Occupancy1.00
Exterior Wall 1Pre-finsh Metl
Exterior Wall 2 
Roof StructureGable/Hip
Roof CoverRolled Compos
Interior Wall 1Plastered
Interior Wall 2Drywall/Sheet
Interior Floor 1Vinyl/Asphalt
Interior Floor 2Hardwood
Heating FuelGas
Heating TypeForced Air-Duc
AC TypeCentral
Struct Class 
Bldg UseR-D FACIL
Total Rooms 
Total Bedrms00
Total Baths9
1st Floor Use:4040
Heat/ACHEAT/AC PKGS
Frame TypeSTEEL
Baths/PlumbingAVERAGE
Ceiling/WallSUS-CEIL & WL
Rooms/PrtnsAVERAGE
Wall Height12.00
% Comn Wall 
Building Photo Building Photo
Building Layout Building Layout
Building Sub-Areas (sq ft)
CodeDescriptionGross
Area		Living
Area
BASFirst Floor 30,610 30,610
FUSUpper Story, Finished 2,730 2,730
FOPPorch, Open 292 0
   33,632 33,340

Extra Features
Extra Features
CodeDescriptionSizeValueBldg #
SPR1SPRINKLERS-WET33340.00 S.F.$63,1001
LDL1LOAD LEVELERS1.00 UNITS$4,6001

Land
Land Use
Use Code4040
DescriptionR-D FACIL  
ZoneWCI
Neighborhood
Alt Land ApprNo
Category
Land Line Valuation
Size (Acres)3.3
Frontage164
Depth
Assessed Value$727,400
Appraised Value$727,400

Outbuildings
Outbuildings
CodeDescriptionSub CodeSub DescriptionSizeValueBldg #
PAV1PAVING-ASPHALT  34100.00 S.F.$32,7001
FN3FENCE 6' CHAIN  140.00 L.F.$5001
Valuation History
Appraisal
Valuation YearImprovementsLandTotal
2026$2,291,700$727,400$3,019,100
2025$2,203,200$692,600$2,895,800
2024$2,136,700$692,600$2,829,300

Assessment
Valuation YearImprovementsLandTotal
2026$2,291,700$727,400$3,019,100
2025$2,203,200$692,600$2,895,800
2024$2,136,700$692,600$2,829,300

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