21 Bay St# 21A
Cambridge, MA 02139
residentialCondominium
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 21 Bay St # 21A
Full access to 21 Bay St # 21A and 4.7M+ others
Free for 14 days, no commitments, cancel anytime
See what a full property record looks like
Property Intelligence: 21 Bay St # 21A, Cambridge, MA 02139
Property Overview
21 Bay St # 21A is a RES CMPLX 1-3 UNITS, Condominium, built in 1872, 1,071 square feet in MIDDLESEX County, MA. 2 bedrooms, 2 bathrooms. Ownership type: Individual. Assessed value: $865,900.
Condition & Permits
No building permits on file.
Risk & Hazard Profile
NEP Fire Protection Grade: B. FEMA flood zone: X. Hurricane storm surge exposure: Category 2. Risk assessment combines NEP proprietary ratings with federal, state, and municipal hazard data at parcel-level precision.
Ownership & Deed History
Last sale: May 2017 for $680,000. 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 Cambridge, MA and all six New England states. NE Provenance covers MIDDLESEX County and over 4.7 million properties across 29 counties with up to 430 intelligence attributes per property record.
