488 Mansfield Ave
Darien, CT 06820
residentialSingle Family
Building & Site Intelligence
Complete building characteristics, construction details, and site data from municipal assessor records and supplementary sources.
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Property Intelligence: 488 Mansfield Ave, Darien, CT 06820
Property Overview
488 Mansfield Ave is a Single Family, built in 1919, 6,860 square feet, 2.64 acres in Western Connecticut Planning Region, CT. 4 bedrooms, 3 bathrooms. Ownership type: Individual. Assessed value: $3,587,300.
Condition & Permits
NEP Condition Estimate: C2. This property-specific condition rating is derived from municipal building permit records, not imagery or automated valuation models. 22 building permits on file from municipal records. Electrical system last permitted 13 years ago.
Risk & Hazard Profile
NEP Fire Protection Grade: D. 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: August 2024 for $3,800,000. 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 Darien, 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.
