21 BROOKSIDE DR
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Location
21 BROOKSIDE DR
Mblu
12/ / 78/ /
Acct#
00079100
Owner
ZYGO CORPORATION
Assessed Value
$8,133,020
Appraisal
$11,618,600
PID
936
Building Count
3
Current Value
Appraisal
Valuation YearImprovementsLandTotal
2026$10,890,800$727,800$11,618,600
Assessment
Valuation YearImprovementsLandTotal
2026$7,623,560$509,460$8,133,020

Owner of Record
OwnerZYGO CORPORATION
Co-Owner
Address21 BROOKSIDE DR
MIDDLEFIELD, CT 06455
Sale Price$0
Book & Page 0221/0085
Sale Date02/03/2005

Ownership History
Ownership History
OwnerSale PriceBook & PageSale Date
ZYGO CORPORATION$00221/008502/03/2005
CONN DEVELOPMENT AUTHORITY$00046/005712/30/1977

Building Information
Building 1 : Section 1
Year Built: 1998
Living Area: 33,934
Building Attributes
FieldDescription
Style:Office Bldg
ModelComm/Ind
Stories:2
Exterior Wall 1Glass/Thermo.
Exterior Wall 2 
Roof StructureFlat
Roof CoverT&G/Rubber
Interior Wall 1Drywall
Interior Wall 2 
Interior Floor 1Carpet
Interior Floor 2 
Heating FuelOil
Heating TypeForced Air-Duc
AC TypeCentral
Heat/ACHEAT/AC PKGS
Frame TypeSTEEL
Baths/PlumbingAVERAGE
Ceiling/WallSUS-CEIL & WL
Rooms/PrtnsAVERAGE
Building Photo Building Photo
Building Layout Building Layout
Building Sub-Areas (sq ft)
CodeDescriptionGross
Area		Living
Area
BASFirst Floor 16,397 16,397
FUSUpper Story, Finished 16,397 16,397
SPAService Production Area 2,280 1,140
PTOPatio 4,920 0
   39,994 33,934
Building 2 : Section 1
Year Built: 1980
Living Area: 118,476
Building Attributes : Bldg 2 of 3
FieldDescription
Style:Lt Industrial
ModelInd/Comm
Stories:1
Exterior Wall 1Pre-cast Concr
Exterior Wall 2 
Roof StructureFlat
Roof CoverT&G/Rubber
Interior Wall 1Minimum
Interior Wall 2 
Interior Floor 1Concr-Finished
Interior Floor 2Concr Abv Grad
Heating FuelOil
Heating TypeForced Air-Duc
AC TypeCentral
Heat/ACHEAT/AC SPLIT
Frame TypeMASONRY
Baths/PlumbingAVERAGE
Ceiling/WallSUS-CEIL/MN WL
Rooms/PrtnsAVERAGE
Building Photo Building Photo
Building Layout Building Layout
Building Sub-Areas (sq ft)
CodeDescriptionGross
Area		Living
Area
BASFirst Floor 100,156 100,156
AOFOffice 18,320 18,320
CANCanopy 650 0
CLPLoading Platform Covered 1,834 0
FEPPorch, Enclosed 288 0
   121,248 118,476
Building 3 : Section 1
Year Built: 1997
Living Area: 3,125
Building Attributes : Bldg 3 of 3
FieldDescription
Style:Pre-Eng Mfg
ModelInd/Comm
Stories:1
Exterior Wall 1Pre-finsh Metl
Exterior Wall 2 
Roof StructureFlat
Roof CoverMetal/Tin
Interior Wall 1Minimum
Interior Wall 2 
Interior Floor 1Concr-Finished
Interior Floor 2 
Heating FuelOil
Heating TypeHot Water
AC TypeCentral
Heat/ACHEAT/AC PKGS
Frame TypeSTEEL
Baths/PlumbingAVERAGE
Ceiling/WallCEIL & WALLS
Rooms/PrtnsLIGHT
Building Photo Building Photo
Building Layout Building Layout
Building Sub-Areas (sq ft)
CodeDescriptionGross
Area		Living
Area
BASFirst Floor 3,125 3,125
ULPLoading Platform Open 500 0
   3,625 3,125

Extra Features
Extra Features
CodeDescriptionSizeValueAssessed Value
SPR2WET/CONCEALED33934.00 S.F.$31,000$21,700
ELV2PASS ELEV2.00 STOPS$49,800$34,860
LDL2W/MAN FLIP OUT2.00 UNITS$1,500$1,050
SPR1SPRINKLERS-WET100156.00 S.F.$64,100$44,870
SPR2WET/CONCEALED18320.00 S.F.$16,100$11,270
ELV2PASS ELEV2.00 STOPS$48,000$33,600

Land
Land Use
Use Code400C
DescriptionFACTORY MDL-94  
ZoneIPD1
Land Line Valuation
Size (Acres)13.57
Frontage
Depth
Assessed Land$509,460
Appraised Value$727,800

Outbuildings
Outbuildings
CodeDescriptionSub CodeSub DescriptionSizeValueAssessed Value
LT1LIGHTS-IN W/PL  18.00 UNITS$6,200$4,340
TNK1BG FUEL TANK  8000.00 GAL$8,000$5,600
PAV1PAVING-ASPHALT  121000.00 S.F.$105,900$74,130
Valuation History
Appraisal
Valuation YearImprovementsLandTotal
2025$6,944,200$633,800$7,578,000
2024$6,944,200$633,800$7,578,000
2023$6,944,200$633,800$7,578,000

Assessment
Valuation YearImprovementsLandTotal
2025$4,860,900$443,700$5,304,600
2024$4,860,900$443,700$5,304,600
2023$4,860,900$443,700$5,304,600

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