345 Grumman Ave
Norwalk, CT 06851
Institutional
Building & Site Intelligence
Complete building characteristics, construction details, and site data from municipal assessor records and supplementary sources.
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Property Intelligence: 345 Grumman Ave, Norwalk, CT 06851
Property Overview
345 Grumman Ave is a Institutional, 3.83 acres in Western Connecticut Planning Region, CT. Ownership type: Government. Assessed value: $3,334,700.
Condition & Permits
1 building permits on file from municipal records.
Risk & Hazard Profile
NEP Fire Protection Grade: E. FEMA flood zone: X. Risk assessment combines NEP proprietary ratings with federal, state, and municipal hazard data at parcel-level precision.
Ownership & Deed History
Last sale: November 1965. 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 Norwalk, 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.
