129 William St
Portland, ME 04103
residentialSingle Family
Building & Site Intelligence
Complete building characteristics, construction details, and site data from municipal assessor records and supplementary sources.
Available intelligence on this tab
Data coverage varies by municipality — check availability
Unlock the full intelligence for 129 William St
Full access to 129 William St and 4.7M+ others
Free for 14 days, no commitments, cancel anytime
See what a full property record looks like
Property Intelligence: 129 William St, Portland, ME 04103
Property Overview
129 William St is a Single Family, built in 1894, 12,663 square feet, 0.29 acres in Cumberland County, ME. Ownership type: Individual.
Condition & Permits
NEP Condition Estimate: C1. This property-specific condition rating is derived from municipal building permit records, not imagery or automated valuation models. 11 building permits on file from municipal records. Electrical system last permitted 7 years ago.
Risk & Hazard Profile
NEP Fire Protection Grade: B. FEMA flood zone: X. Risk assessment combines NEP proprietary ratings with federal, state, and municipal hazard data at parcel-level precision.
Ownership & Deed History
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 Portland, ME and all six New England states. NE Provenance covers Cumberland County and over 4.7 million properties across 29 counties with up to 430 intelligence attributes per property record.
