23 Cos Cob Avenue
Greenwich, CT 06830
Residential Other
Building & Site Intelligence
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Property Intelligence: 23 Cos Cob Avenue, Greenwich, CT 06830
Property Overview
23 Cos Cob Avenue is a Conventional, Residential Other, built in 1923, 1,398 square feet, 0.15 acres in Western Connecticut Planning Region, CT. Ownership type: LLC. Assessed value: $792,500.
Condition & Permits
NEP Condition Estimate: C4. This property-specific condition rating is derived from municipal building permit records, not imagery or automated valuation models. 2 building permits on file from municipal records. Electrical system last permitted 32 years ago.
Risk & Hazard Profile
NEP Fire Protection Grade: B. FEMA flood zone: X. Hurricane storm surge exposure: Category 3. Risk assessment combines NEP proprietary ratings with federal, state, and municipal hazard data at parcel-level precision.
Ownership & Deed History
Last sale: August 2012. Full ownership chain, entity resolution, lien analysis, and comparable sales available with subscription.
About This Data
NE Provenance assembles property intelligence from municipal assessor records, building permit databases, county deed registries, federal environmental and hazard datasets, business registration filings, and state-level geospatial data — 140+ authoritative, primary sources corroborated at the individual address level.
Property data for Greenwich, CT and all six New England states. NE Provenance covers Western Connecticut Planning Region and over 4.7 million properties across 29 counties with up to 430 intelligence attributes per property record.
