100 RIVERSIDE AVE
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Location
100 RIVERSIDE AVE
Mblu
C09/ / 092/000 /
Acct#
29047
Owner
CORP OF CATHOLIC CHURCH ASSUMPTN
Assessed Value
$9,352,200
Appraisal
$13,360,000
PID
10259
Building Count
4
Current Value
Appraisal
Valuation YearImprovementsLandTotal
2025$10,404,600$2,955,400$13,360,000
Assessment
Valuation YearImprovementsLandTotal
2025$7,283,400$2,068,800$9,352,200

Owner of Record
OwnerCORP OF CATHOLIC CHURCH ASSUMPTN
Co-OwnerCHURCH
Address98 RIVERSIDE AVE
WESTPORT, CT 06880
Sale Price$0
Book & Page 0065/0303
Sale Date11/25/1936
Instrument29

Ownership History
Ownership History
OwnerSale PriceBook & PageInstrumentSale Date
CORP OF CATHOLIC CHURCH ASSUMPTN$00065/03032911/25/1936

Building Information
Building 1 : Section 1
Year Built: 1900
Living Area: 10,867
Building Attributes
FieldDescription
Style:Churches
ModelCommercial
GradeGood
Stories:1
Occupancy1.00
Exterior Wall 1Brick/Masonry
Exterior Wall 2 
Roof StructureGable
Roof CoverAsphalt/F Glas
Interior Wall 1Drywall
Interior Wall 2 
Interior Floor 1Carpet
Interior Floor 2 
Heating FuelOil
Heating TypeSteam
AC TypeCentral
Bldg UseChurch
Income Adj 
1st Floor Use:960
Heat/ACHeat/AC Split
Frame TypeMasonry
Baths/PlumbingAverage
Ceiling/WallsCeil & Walls
Rooms/PrtnsAverage
Wall Height15.00
% Comn Wall 
Building Photo Building Photo
Building Layout Building Layout
Building Sub-Areas (sq ft)
CodeDescriptionGross
Area		Living
Area
BASFirst Floor 6,519 6,519
FBMFinished Basement 6,212 4,348
BSMBasement Area 195 0
CTHCathedral Ceiling 6,407 0
FOPPorch, Open 21 0
SLBSlab 91 0
   19,445 10,867
Building 2 : Section 1
Year Built: 1900
Living Area: 5,263
Building Attributes : Bldg 2 of 4
FieldDescription
Style:Off/Apt
ModelCommercial
GradeAverage +20
Stories:2
Occupancy1.00
Exterior Wall 1Vinyl Siding
Exterior Wall 2 
Roof StructureGable
Roof CoverAsphalt/F Glas
Interior Wall 1Drywall
Interior Wall 2 
Interior Floor 1Carpet
Interior Floor 2Hardwood
Heating FuelOil
Heating TypeHot Water
AC TypeCentral
Bldg UseConvent/Rectory
Income Adj 
1st Floor Use:960
Heat/ACHeat/AC Split
Frame TypeWood Frame
Baths/PlumbingAverage
Ceiling/WallsCeil & Walls
Rooms/PrtnsAverage
Wall Height9.00
% Comn Wall 
Building Photo Building Photo
Building Layout Building Layout
Building Sub-Areas (sq ft)
CodeDescriptionGross
Area		Living
Area
BASFirst Floor 3,004 3,004
FUSUpper Story, Finished 2,259 2,259
BSMBasement Area 907 0
CRLCrawl Space 2,073 0
FOPPorch, Open 293 0
   8,536 5,263
Building 3 : Section 1
Year Built: 1890
Living Area: 3,805
Building Attributes : Bldg 3 of 4
FieldDescription
Style:Res Typ Comm
ModelCommercial
GradeAverage +10
Stories:2
Occupancy1.00
Exterior Wall 1Pre-Fab Wood
Exterior Wall 2 
Roof StructureGable
Roof CoverAsphalt/F Glas
Interior Wall 1Drywall
Interior Wall 2 
Interior Floor 1Laminate Flr
Interior Floor 2 
Heating FuelGas
Heating TypeHot Water
AC TypeCentral
Bldg UseChurch Sch
Income Adj 
1st Floor Use: 
Heat/ACHeat/AC Split
Frame TypeWood Frame
Baths/PlumbingAverage
Ceiling/WallsCeil & Walls
Rooms/PrtnsAverage
Wall Height9.00
% Comn Wall 
Building Photo Building Photo
Building Layout Building Layout
Building Sub-Areas (sq ft)
CodeDescriptionGross
Area		Living
Area
BASFirst Floor 1,383 1,383
FUSUpper Story, Finished 1,383 1,383
FLLFinished Lower Level 1,039 1,039
BSMBasement Area 216 0
FEPPorch, Enclosed 110 0
FOPPorch, Open 238 0
SLBSlab 128 0
WDKDeck, Wood 30 0
   4,527 3,805
Building 4 : Section 1
Year Built: 1949
Living Area: 28,328
Building Attributes : Bldg 4 of 4
FieldDescription
Style:School
ModelCommercial
GradeAverage
Stories:2
Occupancy1.00
Exterior Wall 1Brick/Masonry
Exterior Wall 2 
Roof StructureGable
Roof CoverSlate
Interior Wall 1Drywall
Interior Wall 2Drywall
Interior Floor 1Concr-Finished
Interior Floor 2 
Heating FuelGas
Heating TypeSteam
AC TypePartial
Bldg UseChurch Sch
Income Adj 
1st Floor Use: 
Heat/ACHeat/AC Split
Frame TypeMasonry
Baths/PlumbingAverage
Ceiling/WallsCeil & Walls
Rooms/PrtnsAverage
Wall Height10.00
% Comn Wall 
Building Photo Building Photo
Building Layout Building Layout
Building Sub-Areas (sq ft)
CodeDescriptionGross
Area		Living
Area
BASFirst Floor 17,025 17,025
FUSUpper Story, Finished 11,303 11,303
BSMBasement Area 16,935 0
CTHCathedral Ceiling 6,038 0
FOPPorch, Open 406 0
UATAttic, Unfinished 16,935 0
   68,642 28,328

Extra Features
Extra Features
CodeDescriptionSizeValueAssessed ValueBldg #
A/CAir Conditioning4536.00 S.F.$15,000$10,5004
SPRSprinklers3765.00 S.F.$8,500$6,0003
ELEVElevator3.00 UNITS$123,000$86,1001
MEZ2Mezzanine Fin.600.00 S.F.$17,500$12,3001

Land
Land Use
Use Code960
DescriptionChurch  
ZoneA
Land Line Valuation
Size (Acres)3.87
Assessed Value$2,068,800
Appraised Value$2,955,400

Outbuildings
Outbuildings
CodeDescriptionSizeValueAssessed ValueBldg #
PAT1Patio169.00 S.F.$1,000$7001
PAV1Paving Asph.40000.00 S.F.$60,000$42,0001
FN2Fence 5'300.00 L.F.$2,600$1,8001
Valuation History
Appraisal
Valuation YearImprovementsLandTotal
2025$10,404,600$2,955,400$13,360,000
2024$8,929,900$2,816,400$11,746,300
2023$8,929,900$2,816,400$11,746,300

Assessment
Valuation YearImprovementsLandTotal
2025$7,283,400$2,068,800$9,352,200
2024$6,251,000$1,971,500$8,222,500
2023$6,251,000$1,971,500$8,222,500

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