Groton, CT
Tracking 7,750 properties across Groton, Connecticut — a community where the median home dates to 1954 and the oldest to 1684. Every parcel mapped with building characteristics, environmental exposure, hazard risk, and ownership history assembled from 140+ sources.
Groton, CTInc. 1705
Groton is home to the Naval Submarine Base New London — the "Submarine Capital of the World" — and the Electric Boat shipyard, where submarines are built. The military and defense presence dominates the town's economy and land use. The housing stock ranges from dense, older neighborhoods near the submarine base to suburban development inland. The Thames River and Long Island Sound create waterfront properties and coastal exposure.
For property professionals, Groton's military-dependent economy creates distinct dynamics — rental demand from naval personnel, security-related land-use constraints near the base, and the economic sensitivity to defense spending decisions. The coastal exposure along the Thames and the Sound brings flood and storm risk.
Risk Profile
FEMA flood zones, fire protection grades, radon, coastal exposure, storm surge — parcel by parcel
FEMA Flood Zones
1,323 properties (17%) are in FEMA Special Flood Hazard Areas, where flood insurance is required for federally-backed mortgages.
Fire Protection Grades
Fire protection grades reflect proximity to fire stations and hydrant infrastructure. Grade affects insurance pricing in every New England state.
Coastal & Water Exposure
6,139 properties (79%) are within 3 miles of the ocean. 1,453 are classified as waterfront. The closest property is 0 ft from the coastline.
The Property Landscape
7,750 properties · Median year built 1954 · Avg 2,393 sf
Property Types
Construction by Era
Architectural Styles
Market Activity
Recorded transactions from Southeastern Connecticut Registry of Deeds
NE Provenance tracks recorded deeds, mortgages, and liens for 90% of Groton properties. Ownership intelligence includes transaction history, entity detection, portfolio identification, and lien analysis — assembled from public registry records into a single property-level profile.
Living in Groton
Southeastern Connecticut · Connecticut
Groton covers 31.1 square miles in Southeastern Connecticut, Connecticut. The median assessed property value is $273K.
Single-family homes account for 5,197 of Groton's 7,750 properties, with 541 condominiums and 250 multi-family buildings. There are 421 commercial properties and 424 parcels of vacant land. About 54% of properties are owner-occupied, and 10% are owned by someone out of state.
Assessed values range widely — the middle 50% of properties fall between $191K and $486K, with the highest assessed property at $999.2M. For professionals working in this market, the value spread tells you a lot about what you'll encounter door to door.
Most of Groton (82%) is on municipal sewer, and 93% have public water service. Electric service is provided by MOHEGAN TRIBAL UTILITY AUTHORITY. 1,510 properties have identified commercial activity — restaurants, retail, professional offices, and services that give Groton its character.
What Groton Property Intelligence Means for Professionals
Insurance & Underwriting
With 17% of properties in FEMA flood zones and 79% in the coastal zone, Groton concentrates several major underwriting variables. Parcel-level hazard data provides the granularity that ZIP-level aggregation misses.
Insurance solutionsReal Estate & Appraisal
Groton's 10 property types, spanning construction from 1684 to present, require local market knowledge for accurate comparable selection and valuation. NEP assembles building characteristics, environmental exposure, and condition signals into a single property profile.
Real estate solutionsLending & Title
Collateral assessment requires flood zone verification, environmental screening, and ownership chain validation. 17% of Groton properties are in SFHAs where flood insurance is a federal lending requirement. NEP provides property-level compliance data from public records.
Lending solutionsInspection & Property Services
Understanding a property's construction era, environmental exposure, and building characteristics before arriving on site transforms inspection from discovery to verification.
Inspection solutionsExplore Groton property intelligence.
7,750 Groton properties — each with risk profiles, building data, permit history, and ownership analysis from 140+ sources. Open any property and see the full picture.
Source: NE Provenance, “Professional Property Intelligence for New England,” neprovenance.com/insights/town/groton-ct. For references or attribution, please link back to this page or neprovenance.com. Thank you, we appreciate it.