21 BERKELEY AV
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Location
21 BERKELEY AV
Mblu
54/ / 160/ /
Acct#
00003056
Owner
NANTUCKET MOUNTAIN LLC
Assessment
$42,917,200
PID
3056
Building Count
3
Current Value
Assessment
Valuation YearImprovementsLandTotal
2026$12,538,500$30,378,700$42,917,200

Owner of Record
OwnerNANTUCKET MOUNTAIN LLC
Co-Owner
Address4 MAGNOLIA PLACE
RYE, NY 10580
Sale Price$38,127,500
Certificate
Book & Page C29226/0
Sale Date06/30/2023
Instrument00

Ownership History
Ownership History
OwnerSale PriceCertificateBook & PageInstrumentSale Date
NANTUCKET MOUNTAIN LLC$38,127,500 C29226/00006/30/2023
JONES EVAN & CYNTHIA A$16,000,000 C22423/01O11/14/2006
JONES EVAN & CYNTHIA A$0 1049/3261N11/14/2006
HALSTED PATRICIA A TRST$0 1049/3229911/14/2006
HALSTED PATRICIA A TRST$0 C22174/09903/21/2006

Building Information
Building 1 : Section 1
Year Built: 2008
Living Area: 8,849
Replacement Cost: $11,094,232
Building Percent Good: 96
Replacement Cost
Less Depreciation:
$10,650,500
Building Attributes
FieldDescription
Style:Custom Built
ModelResidential
Grade:Luxurious
Stories:1.75
Occupancy1
Exterior Wall 1Wood Shingle
Exterior Wall 2 
Roof Structure:Gable/Hip
Roof CoverWood Shingle
Interior Wall 1Plastered
Interior Wall 2 
Interior Flr 1Hardwood
Interior Flr 2 
Heat FuelElectric
Heat Type:Forced Air-Duc
AC Type:Heat Pump
Total Bedrooms:4
Total Bthrms:4
Total Half Baths:1
Total Xtra Fixtrs: 
Total Rooms: 
Bath Style:Average
Kitchen Style:Modern
Num Kitchens01
Cndtn 
Num Park 
Fireplaces 
Fndtn Cndtn 
Basement 
Usrfld 706
Building Photo Building Photo
Building Layout Building Layout
Building Sub-Areas (sq ft)
CodeDescriptionGross
Area		Living
Area
BASFirst Floor 3,680 3,680
TQSThree Quarter Story 3,457 2,593
FBMBasement, Finished 3,680 2,576
FOPPorch, Open, Finished 1,673 0
PTOPatio 1,375 0
WDKDeck, Wood 490 0
   14,355 8,849
Building 2 : Section 1
Year Built: 1930
Living Area: 2,126
Replacement Cost: $1,016,224
Building Percent Good: 98
Replacement Cost
Less Depreciation:
$995,900
Building Attributes : Bldg 2 of 3
FieldDescription
Style:Guest Quarters
ModelResidential
Grade:Excellent
Stories:2
Occupancy1
Exterior Wall 1Wood Shingle
Exterior Wall 2 
Roof Structure:Gambrel
Roof CoverAsph/F Gls/Cmp
Interior Wall 1Wall Brd/Wood
Interior Wall 2Drywall/Sheet
Interior Flr 1Pine/Soft Wood
Interior Flr 2 
Heat FuelGas
Heat Type:Floor Furnace
AC Type:None
Total Bedrooms:2
Total Bthrms:2
Total Half Baths:1
Total Xtra Fixtrs: 
Total Rooms: 
Bath Style:Average
Kitchen Style:Modern
Num Kitchens 
Cndtn 
Num Park 
Fireplaces 
Fndtn Cndtn 
Basement 
Usrfld 706
Building Photo Building Photo
Building Layout Building Layout
Building Sub-Areas (sq ft)
CodeDescriptionGross
Area		Living
Area
BASFirst Floor 1,252 1,252
FUSUpper Story, Finished 874 874
FEPPorch, Enclosed, Finished 580 0
FOPPorch, Open, Finished 60 0
STPStoop 169 0
UBMBasement, Unfinished 748 0
USTUtility, Storage, Unfinished 95 0
   3,778 2,126
Building 3 : Section 1
Year Built: 2008
Living Area: 1,418
Replacement Cost: $879,728
Building Percent Good: 96
Replacement Cost
Less Depreciation:
$844,500
Building Attributes : Bldg 3 of 3
FieldDescription
Style:Guest Quarters
ModelResidential
Grade:Excellent
Stories:1.75
Occupancy1
Exterior Wall 1Wood Shingle
Exterior Wall 2 
Roof Structure:Gable/Hip
Roof CoverWood Shingle
Interior Wall 1Plastered
Interior Wall 2 
Interior Flr 1Pine/Soft Wood
Interior Flr 2 
Heat FuelElectric
Heat Type:Forced Air-Duc
AC Type:Heat Pump
Total Bedrooms:0
Total Bthrms:2
Total Half Baths:0
Total Xtra Fixtrs: 
Total Rooms: 
Bath Style:Average
Kitchen Style: 
Num Kitchens 
Cndtn 
Num Park 
Fireplaces 
Fndtn Cndtn 
Basement 
Usrfld 706
Building Photo Building Photo
Building Layout Building Layout
Building Sub-Areas (sq ft)
CodeDescriptionGross
Area		Living
Area
TQSThree Quarter Story 961 721
BASFirst Floor 697 697
CANCanopy 93 0
FGRGarage, Finished 632 0
FOPPorch, Open, Finished 308 0
WDKDeck, Wood 105 0
   2,796 1,418

Extra Features
Extra Features
CodeDescriptionSizeValueBldg #
FPL32 STORY CHIM1.00 UNITS$12,0002
FPL32 STORY CHIM2.00 UNITS$23,4001
FPOEXTRA FPL OPEN1.00 UNITS$1,2001
FPL21.5 STORY CHIM1.00 UNITS$9,8003
FPOEXTRA FPL OPEN1.00 UNITS$1,2001

Land
Land Use
Use Code1093
DescriptionMULTI WF  
ZoneLUG1
Neighborhood980
Alt Land ApprNo
Category
Land Line Valuation
Size (Acres)3.56
Frontage0
Depth0
Assessed Value$30,378,700

Outbuildings
Outbuildings
CodeDescriptionSub CodeSub DescriptionSizeValueBldg #
SHD2W/LIGHTS ETC  0.00 S.F.$01
Valuation History
Assessment
Valuation YearImprovementsLandTotal
2026$12,538,500$30,378,700$42,917,200
2025$12,636,900$26,055,000$38,691,900
2024$11,923,800$26,055,000$37,978,800
2023$9,660,000$23,835,000$33,495,000
2022$8,331,800$19,793,600$28,125,400

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