12 E Putnam Ave, #40, Cos Cob, CT 06807 Property Records

Greenwich Town property record for 12 E Putnam Ave, #40, Cos Cob, CT 06807

Property Summary

Property TypeMedical Building
Details8,000 sqft · built 1976
Lot Size0.54 acres (23,522 sqft)
Owner2 Company Names on Record
Tax Bill$37,201 (2024)
Flood ZoneZone X (minimal risk)
APN08-1594S

Property Details

APN / Parcel Number

Primary APN08-1594S
Alternative APNs
  • GREE M:08 B:1594/S
  • 342/091

Interior

Total Rooms11 Rooms
Stories2 Stories
Building Area8,000 sqft Total Area
Basement Area4,000 sqft
Unfinished Basement4,000 sqft
ElevatorElevator

Exterior

Year BuiltBuilt 1976
Effective Year BuiltEffective 1976
Exterior MaterialBrick
Construction TypeFrame
Roof TypeGable
Roof MaterialShingle
Lot Area23,522 sqft (0.54 acres)

Utilities, Heating & Cooling

Heating SystemForced Air with A/C

Location & Zoning

Account Number342/091
Street Address12 E PUTNAM AVE, 40
CityCOS COB
StateCT
Zip06807
Property CategoryCommercial
Property TypeCommercial > Office > Medical Building
Local Zoning CodeR-7
Legal Block1594/S
JurisdictionGREENWICH CT
Township / Civil DivisionGREENWICH
Census Block Group3
Census Block3005
Census Tract10800

Owner

Source: Greenwich Town records, as of June 25, 2026

Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.

Owner of Record2 Company Names on Record
Mailing Address5047 BROADWAY, NEW YORK, NY 10034-1131
Owner TypeCompany
VestingCompany

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed Names2 Names on Deed
Record UpdatedSep 20, 2026

Tax Assessment & Valuation

Source: Greenwich Town assessment roll, as of June 25, 2026

Property Jurisdictions

TypeName
StateConnecticut
County SubdivisionGreenwich Town
Unified School DistrictGreenwich School District (PK - 12)

Tax Bill & Assessment History

YearTax BillAssessed ValueAssessed Market Value
2025$3,010,000 (-2.27%) Land $1,787,310 Building $1,222,690$2,107,000 Land $1,251,117 Building $855,883
2024$37,201.00 (+3.8%)
2023$35,839.00 (-3.09%)$3,080,000 (-3.98%) Land $1,787,310 Building $1,292,690
2022$36,983.00$3,207,540 Land $1,787,310 Building $1,420,230

Assessed value and assessed market value are set for property tax purposes and are not market price estimates.

Flood

Source: FEMA National Flood Hazard Layer, effective November 28, 2025

FEMA Flood ZoneZone X
minimal risk
Flood Insurance RequirementNot required
lenders may require it

Values are read at the parcel center point; lenders make the official flood determination.

Wildfire

Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024

Wildfire RiskLow
lower than 98% of the US · lower than 97.2% of Connecticut
Wildfire LikelihoodUnder 0.01% annual chance
ExposureNone
beyond ember reach

Values cover an area roughly 900 ft across, not the parcel itself; insurers use their own ratings.

Drinking Water

Source: EPA Safe Drinking Water Information System, as of September 2026

Water SystemAQUARION-EASTERN FAIRFIELD COUNTY
private · serves 351,756 people · EPA ID CT0150011
Water SourceSurface water
Last State InspectionJun 2025
LeadUnder 1 ppb (2026)
action level 15 ppb

Violations Reported to EPA

Water QualityNone
last 10 years
Treatment and ProcedureNone
last 10 years
Monitoring and Reporting24
last 3 years

Results are for the whole water system, not water tested at this address; lead at the tap also depends on the building's own pipes.

Internet Providers

Source: FCC Broadband Data Collection, based on 328 locations within half a mile, as of December 31, 2025

ProviderMax Down / Up (Mbps)
Optimum
Fiber · Cable
8,000 / 8,000
Verizon
Fiber · Fixed Wireless in parts of the area
980 / 880
Starlink
Satellite
280 / 30

May also be available: Frontier.

Nearby Properties on E Putnam Ave

Nearby Streets

Search Property Records by Address or Parcel Number