Cohasset, MA
Norfolk County42.2410°N, 70.8036°W
Tracking 3,507 properties across Cohasset, Massachusetts — a community where the median home dates to 1960 and the oldest to 1700. Every parcel mapped with building characteristics, environmental exposure, hazard risk, and ownership history assembled from 140+ sources.
3,507
Properties Tracked
1960
Median Year Built
$1.0M
Median Assessed Value
12%
FEMA Flood Zone
1.00M
NEP Data Facts Tracked
93%
Coastal Zone
Click any parcel to view intelligence
Cohasset, MAInc. 1647
Cohasset is a small, affluent coastal town on the South Shore between Hingham and Scituate, with a rocky coastline and a harbor that has anchored a sailing and summer community for over a century. The housing stock ranges from historic homes near the village center and along Jerusalem Road to newer construction in the inland neighborhoods. The coastal properties command significant premiums and face the full range of oceanfront exposure.
For property professionals, Cohasset is a high-value coastal market where ocean proximity, flood zone classification, and storm exposure are the defining risk variables. The town's rocky shoreline provides more natural protection than the barrier beach communities to the south, but nor'easters and coastal storms still create meaningful risk for waterfront and near-waterfront properties. The small number of annual transactions makes comparable selection a challenge that benefits from detailed property-level data.
Risk Profile
FEMA flood zones, fire protection grades, radon, coastal exposure, storm surge — parcel by parcel
FEMA Flood Zones
424 properties (12%) are in FEMA Special Flood Hazard Areas, where flood insurance is required for federally-backed mortgages.
X
3,083
AE
274
A
95
VE
31
AO
24
Fire Protection Grades
Fire protection grades reflect proximity to fire stations and hydrant infrastructure. Grade affects insurance pricing in every New England state.
Grade A
535
Grade B
1,253
Grade C
1,583
Grade D
135
Grade E
1
Coastal & Water Exposure
3,247 properties (93%) are within 3 miles of the ocean. 849 are classified as waterfront. The closest property is 8 ft from the coastline.
278
SLR 1 ft
Properties affected
348
SLR 3 ft
Properties affected
624
SLR 6 ft
Properties affected
966
Surge Exposure
Cat 1/2/3/4
438
Estuary
Waterfront
97
Lake
Waterfront
77
Pond
Waterfront
Zone 1
Radon Risk
123 mph
Design Wind Speed
ASCE 7 standard
35 psf
Ground Snow Load
ASCE 7 standard
Relatively Low
FEMA Risk Index
NRI composite rating
The Property Landscape
3,507 properties · Median year built 1960 · Avg 3,212 sf
Property Types
Single Family
2,433
Institutional
263
Vacant Land
188
Two-Family
182
Multi-Family
140
Commercial
121
Condominium
119
Other
29
Mixed Use
24
Residential Other
6
Construction by Era
Pre-1800
16
1800-1849
72
1850-1899
289
1900-1949
670
1950-1979
1,006
1980-1999
427
2000+
548
Architectural Styles
Colonial
731
Cape Cod
429
Conventional
370
Condominium
229
Ranch
204
Church / Synagogue
91
Raised Ranch
74
Contemporary
56
Market Activity
Recorded transactions from Norfolk County Registry of Deeds
78
Sales (12 mo)
Arms-length transactions
$1.5M
Median Sale Price
Past 12 months
69%
Owner-Occupied
3%
Out-of-State Owners
NE Provenance tracks recorded deeds, mortgages, and liens for 97% of Cohasset properties. Ownership intelligence includes transaction history, entity detection, portfolio identification, and lien analysis — assembled from public registry records into a single property-level profile.
Building Permits & Maintenance
9,769 municipal building permits on file · 61% of properties
NE Provenance tracks 9,769 building permits across 2,121 Cohasset properties — 61% coverage. 1,644 properties have permit activity in the last five years.
Each permit record reveals maintenance decisions: roof replacements, electrical upgrades, kitchen renovations, solar installations. For insurance, lending, and appraisal professionals, permit history is the most objective evidence of property condition available from public records.
9,769
Permits on File
61%
Coverage
Properties with permits
1,644
Active (5yr)
Recent permit activity
86%
Condition Rated
NEP assessment
Living in Cohasset
Norfolk County · Massachusetts
Zip Codes0202502066
8,381
Population
2020 Census
3,507
Properties
$1.0M
Median Assessed
69%
Owner-Occupied
10.1
Square Miles
Cohasset covers 10.1 square miles in Norfolk County, Massachusetts. The median assessed property value is $1.0M.
Single-family homes account for 2,433 of Cohasset's 3,507 properties, with 119 condominiums and 322 multi-family buildings. There are 121 commercial properties and 188 parcels of vacant land. About 69% of properties are owner-occupied, and 3% are owned by someone out of state.
Assessed values range widely — the middle 50% of properties fall between $672K and $1.5M, with the highest assessed property at $60.8M. For professionals working in this market, the value spread tells you a lot about what you'll encounter door to door.
55% of properties are on municipal sewer, with the remainder on private septic systems. Electric service is provided by TOWN OF BRAINTREE - (MA). 426 properties have identified commercial activity — restaurants, retail, professional offices, and services that give Cohasset its character.
What Cohasset Property Intelligence Means for Professionals
Insurance & Underwriting
With 12% of properties in FEMA flood zones and 93% in the coastal zone, Cohasset concentrates several major underwriting variables. Parcel-level hazard data provides the granularity that ZIP-level aggregation misses.
Insurance solutionsReal Estate & Appraisal
Cohasset's 10 property types, spanning construction from 1700 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. 12% of Cohasset 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
9,769 permits across 61% of properties means most Cohasset inspection assignments can start with documented renovation and system history, not a blank slate.
Inspection solutionsExplore Cohasset property intelligence.
3,507 Cohasset properties — each with risk profiles, building data, permit history, and ownership analysis from 140+ sources. Open any property and see the full picture.
Newburyport, MA · Federalist · 3,524 sq ft · 4 bed / 3 bath · Built 1800 · Historic District
NEP Property Intelligence Summary
ConditionC1Fire ClassBFlood ZoneXOwnerIndividualOccupancyOwner-Occupied
Purchased2018 (8yr)Permits11 totalSystems3 updatedLiensClearAssessed$1.6MOcean0.3 mi
EraPre-1940HistoricDesignatedRenovationRecentRadonZone 1
Cite this data
Source: NE Provenance, “Professional Property Intelligence for New England,” neprovenance.com/insights/town/cohasset-ma. For references or attribution, please link back to this page or neprovenance.com. Thank you, we appreciate it.