4 COSKATA COURSE WY
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Location
4 COSKATA COURSE WY
Mblu
14/ / 14/ /
Acct#
00000169
Owner
PENANT REALTY LLC
Assessment
$48,325,200
PID
169
Building Count
4
Current Value
Assessment
Valuation YearImprovementsLandTotal
2026$34,655,800$13,669,400$48,325,200

Owner of Record
OwnerPENANT REALTY LLC
Co-Owner
Address2555 TELEGRAPH RD
BLOOMFIELD HILLS, MI 48302-0954
Sale Price$0
Certificate
Book & Page C19320/0
Sale Date02/03/2000
Instrument99

Ownership History
Ownership History
OwnerSale PriceCertificateBook & PageInstrumentSale Date
PENANT REALTY LLC$0 C19320/09902/03/2000
PENSKE ROGER S TRUSTEE$0 C18713/09912/21/1998
OMICRON REALTY CORP$6,800,000 C17609/01N10/31/1996
POCOMO OVERSEAS INC$0 C12010/09908/27/1985

Building Information
Building 1 : Section 1
Year Built: 1998
Living Area: 15,388
Replacement Cost: $31,488,477
Building Percent Good: 98
Replacement Cost
Less Depreciation:
$30,858,700
Building Attributes
FieldDescription
Style:Mansion
ModelResidential
Grade:Excellent +
Stories:2 Stories
Occupancy1
Exterior Wall 1Wood Shingle
Exterior Wall 2 
Roof Structure:Gable/Hip
Roof CoverWood Shingle
Interior Wall 1Plastered
Interior Wall 2Drywall/Sheet
Interior Flr 1Hardwood
Interior Flr 2 
Heat FuelOil
Heat Type:Forced Air-Duc
AC Type:Central
Total Bedrooms:5 Bedrooms
Total Bthrms:6
Total Half Baths:1
Total Xtra Fixtrs: 
Total Rooms: 
Bath Style:Modern
Kitchen Style:Luxurious
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 6,940 6,940
FUSUpper Story, Finished 5,460 5,460
FBMBasement, Finished 4,268 2,988
FEPPorch, Enclosed, Finished 360 0
FOPPorch, Open, Finished 1,272 0
STPStoop 592 0
   18,892 15,388
Building 2 : Section 1
Year Built: 1998
Living Area: 2,079
Replacement Cost: $1,191,720
Building Percent Good: 98
Replacement Cost
Less Depreciation:
$1,167,900
Building Attributes : Bldg 2 of 4
FieldDescription
Style:Guest Quarters
ModelResidential
Grade:Excellent +
Stories:2 Stories
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 FuelOil
Heat Type:Forced Air-Duc
AC Type:Central
Total Bedrooms:2 Bedrooms
Total Bthrms:2
Total Half Baths:1
Total Xtra Fixtrs: 
Total Rooms: 
Bath Style:Modern
Kitchen Style:Luxurious
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 960 960
TQSThree Quarter Story 960 720
FBMBasement, Finished 570 399
FEPPorch, Enclosed, Finished 252 0
FOPPorch, Open, Finished 488 0
STPStoop 208 0
   3,438 2,079
Building 3 : Section 1
Year Built: 1998
Living Area: 1,008
Replacement Cost: $990,918
Building Percent Good: 98
Replacement Cost
Less Depreciation:
$971,100
Building Attributes : Bldg 3 of 4
FieldDescription
Style:Guest Quarters
ModelResidential
Grade:Excellent +
Stories:2 Stories
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 2Concr Abv Grad
Heat FuelOil
Heat Type:Forced Air-Duc
AC Type:Central
Total Bedrooms:0
Total Bthrms:1
Total Half Baths:0
Total Xtra Fixtrs: 
Total Rooms: 
Bath Style:Modern
Kitchen Style: 
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
TQSThree Quarter Story 1,344 1,008
CANCanopy 224 0
FGRGarage, Finished 1,680 0
FOPPorch, Open, Finished 1,076 0
   4,324 1,008
Building 4 : Section 1
Year Built: 1998
Living Area: 2,360
Replacement Cost: $1,357,529
Building Percent Good: 98
Replacement Cost
Less Depreciation:
$1,330,400
Building Attributes : Bldg 4 of 4
FieldDescription
Style:Guest Quarters
ModelResidential
Grade:Excellent +
Stories:1 Story
Occupancy1
Exterior Wall 1Wood Shingle
Exterior Wall 2 
Roof Structure:Gable/Hip
Roof CoverWood Shingle
Interior Wall 1Plastered
Interior Wall 2Cust Wd Panel
Interior Flr 1Hardwood
Interior Flr 2 
Heat FuelOil
Heat Type:Forced Air-Duc
AC Type:Central
Total Bedrooms:0
Total Bthrms:2
Total Half Baths:1
Total Xtra Fixtrs: 
Total Rooms: 
Bath Style:Modern
Kitchen Style:Luxurious
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 1,388 1,388
FBMBasement, Finished 1,388 972
FEPPorch, Enclosed, Finished 280 0
FOPPorch, Open, Finished 1,016 0
   4,072 2,360

Extra Features
Extra Features
CodeDescriptionSizeValueBldg #
FPL1FIREPLACE 1 ST1.00 UNITS$8,0004
FPL32 STORY CHIM1.00 UNITS$12,0002
FPL32 STORY CHIM4.00 UNITS$47,8001

Land
Land Use
Use Code1093
DescriptionMULTI WF  
ZoneLUG3
Neighborhood750
Alt Land ApprNo
Category
Land Line Valuation
Size (Acres)12.64
Frontage0
Depth0
Assessed Value$13,669,400

Outbuildings
Outbuildings
CodeDescriptionSub CodeSub DescriptionSizeValueBldg #
PAT1PATIO-AVG  1056.00 S.F.$11,1004
PAT3PATIO VG  352.00 S.F.$13,4002
PAT3PATIO VG  2128.00 S.F.$80,9001
SHD1SHED FRAME  180.00 S.F.$4,9004
SPL3GUNITE  1250.00 S.F.$138,8004
WHPLPERM HOTTUB  1.00 UNITS$10,8004
Valuation History
Assessment
Valuation YearImprovementsLandTotal
2026$34,655,800$13,669,400$48,325,200
2025$33,893,700$11,675,700$45,569,400
2024$34,083,300$12,691,000$46,774,300
2023$28,376,900$11,339,000$39,715,900
2022$26,377,400$7,988,400$34,365,800

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