Darien, CT
Western Connecticut41.0787°N, 73.4693°W
Tracking 7,683 properties across Darien, Connecticut — a community where the median home dates to 1955 and the oldest to 1659. Every parcel mapped with building characteristics, environmental exposure, hazard risk, and ownership history assembled from 140+ sources.
7,683
Properties Tracked
1955
Median Year Built
$1.6M
Median Assessed Value
15%
FEMA Flood Zone
2.18M
NEP Data Facts Tracked
81%
Coastal Zone
Click any parcel to view intelligence
Darien, CTInc. 1820
Darien is one of Connecticut's most affluent communities, positioned along I-95 and the Metro-North commuter rail between Stamford and Norwalk. The town's housing stock is predominantly single-family homes on generous lots, with assessed values among the highest in the state. The Long Island Sound coastline provides waterfront properties and coastal exposure.
For property professionals, Darien is a premium market where high assessed values, coastal flood risk, and the expectations of affluent homeowners create a demanding environment. Building condition, renovation quality, and waterfront position are the key differentiators.
Risk Profile
FEMA flood zones, fire protection grades, radon, coastal exposure, storm surge — parcel by parcel
FEMA Flood Zones
1,156 properties (15%) are in FEMA Special Flood Hazard Areas, where flood insurance is required for federally-backed mortgages.
X
6,527
AE
1,023
VE
99
A
34
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
1,729
Grade B
4,441
Grade C
1,028
Grade D
305
Grade E
180
Coastal & Water Exposure
6,205 properties (81%) are within 3 miles of the ocean. 1,212 are classified as waterfront. The closest property is 0 ft from the coastline.
430
SLR 1 ft
Properties affected
494
SLR 3 ft
Properties affected
701
SLR 6 ft
Properties affected
1,341
Surge Exposure
Cat 1/2/3/4
484
Estuary
Waterfront
303
Pond
Waterfront
53
Lake
Waterfront
Zone 1
Radon Risk
123 mph
Design Wind Speed
ASCE 7 standard
30 psf
Ground Snow Load
ASCE 7 standard
Relatively Moderate
FEMA Risk Index
NRI composite rating
The Property Landscape
7,683 properties · Median year built 1955 · Avg 3,635 sf
Property Types
Single Family
6,403
Condominium
391
Institutional
229
Commercial
226
Vacant Land
224
Multi-Family
87
Mixed Use
50
Other
46
Residential Other
17
Industrial
4
Construction by Era
Pre-1800
33
1800-1849
40
1850-1899
207
1900-1949
2,262
1950-1979
2,704
1980-1999
741
2000+
1,094
Market Activity
Recorded transactions from Western Connecticut Registry of Deeds
68
Sales (12 mo)
Arms-length transactions
$2.7M
Median Sale Price
Past 12 months
79%
Owner-Occupied
3%
Out-of-State Owners
NE Provenance tracks recorded deeds, mortgages, and liens for 93% of Darien 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
81,094 municipal building permits on file · 86% of properties
NE Provenance tracks 81,094 building permits across 6,586 Darien properties — 86% coverage. 3,042 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.
81,094
Permits on File
86%
Coverage
Properties with permits
3,042
Active (5yr)
Recent permit activity
92%
Condition Rated
NEP assessment
Living in Darien
Western Connecticut · Connecticut
Zip Codes068200684006850068540690206906
21,499
Population
2020 Census
7,683
Properties
$1.6M
Median Assessed
79%
Owner-Occupied
12.7
Square Miles
Darien covers 12.7 square miles in Western Connecticut, Connecticut. The median assessed property value is $1.6M.
Single-family homes account for 6,403 of Darien's 7,683 properties, with 391 condominiums and 91 multi-family buildings. There are 226 commercial properties and 224 parcels of vacant land. About 79% 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 $1.1M and $2.5M, with the highest assessed property at $159.2M. For professionals working in this market, the value spread tells you a lot about what you'll encounter door to door.
78% of properties are on municipal sewer, with the remainder on private septic systems, and 94% have public water service. Electric service is provided by UNITED ILLUMINATING CO. 2,992 properties have identified commercial activity — restaurants, retail, professional offices, and services that give Darien its character.
What Darien Property Intelligence Means for Professionals
Insurance & Underwriting
With 15% of properties in FEMA flood zones and 81% in the coastal zone, Darien concentrates several major underwriting variables. Parcel-level hazard data provides the granularity that ZIP-level aggregation misses.
Insurance solutionsReal Estate & Appraisal
Darien's 10 property types, spanning construction from 1659 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. 15% of Darien 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
81,094 permits across 86% of properties means most Darien inspection assignments can start with documented renovation and system history, not a blank slate.
Inspection solutionsExplore Darien property intelligence.
7,683 Darien 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/darien-ct. For references or attribution, please link back to this page or neprovenance.com. Thank you, we appreciate it.