285 RIVERSIDE AVE
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Location
285 RIVERSIDE AVE
Mblu
C07/ / 001/000 /
Acct#
9442
Owner
WESTPORT RIVERSIDE ASSOCIATES LLC
Assessed Value
$14,857,600
Appraisal
$21,225,100
PID
5349
Building Count
2
Current Value
Appraisal
Valuation YearImprovementsLandTotal
2025$13,740,700$7,484,400$21,225,100
Assessment
Valuation YearImprovementsLandTotal
2025$9,618,500$5,239,100$14,857,600

Owner of Record
OwnerWESTPORT RIVERSIDE ASSOCIATES LLC
Co-Owner
Address7 PENN PLAZA SUITE 1100
NEW YORK, NY 10001
Sale Price$43,057,500
Book & Page 4216/0187
Sale Date02/10/2022
Instrument27

Ownership History
Ownership History
OwnerSale PriceBook & PageInstrumentSale Date
WESTPORT RIVERSIDE ASSOCIATES LLC$43,057,5004216/01872702/10/2022
285 & 355 RIVERSIDE LLC$03608/03012905/08/2015
RIVERSIDE LLC$03603/00861404/15/2015
RIVERSIDE OFFICE 285 & 355 LLC$36,550,0002539/03130804/19/2005
RIVERSIDE INVESTORS LLC$37,125,0002170/02930004/03/2003

Building Information
Building 1 : Section 1
Year Built: 1981
Living Area: 23,604
Building Attributes
FieldDescription
Style:Office Bldg
ModelCommercial
GradeExcellent
Stories:4
Occupancy4.00
Exterior Wall 1Brick/Masonry
Exterior Wall 2 
Roof StructureFlat
Roof CoverT&G/Rubber
Interior Wall 1Drywall
Interior Wall 2 
Interior Floor 1Carpet
Interior Floor 2Hardwood
Heating FuelGas
Heating TypeHydroAir
AC TypeCentral
Bldg UseOff Bldg
Income Adj 
1st Floor Use:343
Heat/ACHeat/AC Pkgs
Frame TypeSteel
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
FUSUpper Story, Finished 19,463 19,463
BASFirst Floor 3,316 3,316
UBSUnfin First Floor 825 825
CPTCovered Parking 859 0
FOPPorch, Open 4,329 0
USTUtility, Storage 416 0
   29,208 23,604
Building 2 : Section 1
Year Built: 1923
Living Area: 32,144
Building Attributes : Bldg 2 of 2
FieldDescription
Style:Office Bldg
ModelCommercial
GradeExcellent
Stories:3
Occupancy3.00
Exterior Wall 1Brick/Masonry
Exterior Wall 2 
Roof StructureFlat
Roof CoverT&G/Rubber
Interior Wall 1Drywall
Interior Wall 2Minimum
Interior Floor 1Carpet
Interior Floor 2Hardwood
Heating FuelGas
Heating TypeForced Air
AC TypeCentral
Bldg UseOff Bldg
Income Adj 
1st Floor Use:343
Heat/ACHeat/AC Pkgs
Frame TypeFireprf Steel
Baths/PlumbingAverage
Ceiling/WallsCeil & Walls
Rooms/PrtnsAverage
Wall Height12.00
% Comn Wall 
Building Photo Building Photo
Building Layout Building Layout
Building Sub-Areas (sq ft)
CodeDescriptionGross
Area		Living
Area
FUSUpper Story, Finished 31,298 31,298
BASFirst Floor 846 846
CPTCovered Parking 14,806 0
   46,950 32,144

Extra Features
Extra Features
CodeDescriptionSizeValueAssessed ValueBldg #
SPRSprinklers32268.00 S.F.$69,400$48,6002
ELEVElevator3.00 UNITS$129,000$90,3002
SPRSprinklers15178.00 S.F.$39,200$27,4002
ELEVElevator4.00 UNITS$160,000$112,0001
SPRSprinklers23776.00 S.F.$47,600$33,3001
SPRSprinklers2884.00 S.F.$7,400$5,2001

Land
Land Use
Use Code340
DescriptionOff Bldg  
ZoneGBD
Land Line Valuation
Size (Acres)1.76
Assessed Value$5,239,100
Appraised Value$7,484,400

Outbuildings
Outbuildings
CodeDescriptionSizeValueAssessed ValueBldg #
PAT1Patio1994.00 S.F.$26,900$18,8001
PAT1Patio1691.00 S.F.$22,800$16,0001
PAT1Patio689.00 S.F.$9,300$6,5001
PAV1Paving Asph.40000.00 S.F.$75,000$52,5001
PRKSParking Spaces139.00 Units$0$02
PRKSParking Spaces139.00 Units$0$01
Valuation History
Appraisal
Valuation YearImprovementsLandTotal
2025$13,740,700$7,484,400$21,225,100
2024$10,107,500$5,702,400$15,809,900
2023$10,107,500$5,702,400$15,809,900

Assessment
Valuation YearImprovementsLandTotal
2025$9,618,500$5,239,100$14,857,600
2024$7,075,300$3,991,700$11,067,000
2023$7,075,300$3,991,700$11,067,000

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