Guilford, CT
South Central Connecticut41.2828°N, 72.6816°W
Tracking 10,687 properties across Guilford, Connecticut — a community where the median home dates to 1976 and the oldest to 1700. Every parcel mapped with building characteristics, environmental exposure, hazard risk, and ownership history assembled from 140+ sources.
10,687
Properties Tracked
1976
Median Year Built
$454K
Median Assessed Value
18%
FEMA Flood Zone
2.97M
NEP Data Facts Tracked
42%
Coastal Zone
Click any parcel to view intelligence
Guilford, CTInc. 1639
Guilford is a historic shoreline town on Long Island Sound, with one of the best-preserved New England town greens in Connecticut. The Henry Whitfield State Museum — the oldest stone dwelling in New England — anchors the town's colonial heritage. The housing stock ranges from 17th and 18th century homes near the green to waterfront properties along the Sound to suburban development in the northern sections.
For property professionals, Guilford is an upper-value shoreline market where historic preservation, coastal exposure, and the range from antique village homes to modern waterfront properties create a varied market. The Sound coastline brings flood and storm risk.
Risk Profile
FEMA flood zones, fire protection grades, radon, coastal exposure, storm surge — parcel by parcel
FEMA Flood Zones
1,931 properties (18%) are in FEMA Special Flood Hazard Areas, where flood insurance is required for federally-backed mortgages.
X
8,756
AE
1,216
A
431
VE
284
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
8
Grade B
1,212
Grade C
2,279
Grade D
3,491
Grade E
3,697
Coastal & Water Exposure
4,523 properties (42%) are within 3 miles of the ocean. 2,758 are classified as waterfront. The closest property is 0 ft from the coastline.
763
SLR 1 ft
Properties affected
933
SLR 3 ft
Properties affected
1,269
SLR 6 ft
Properties affected
2,046
Surge Exposure
Cat 1/2/3/4
1,104
Estuary
Waterfront
658
Pond
Waterfront
167
Lake
Waterfront
Zone 1
Radon Risk
123 mph
Design Wind Speed
ASCE 7 standard
30 psf
Ground Snow Load
ASCE 7 standard
Relatively Low
FEMA Risk Index
NRI composite rating
The Property Landscape
10,687 properties · Median year built 1976 · Avg 2,088 sf
Property Types
Residential Other
9,184
Vacant Land
842
Commercial
317
Institutional
132
Other
120
Industrial
45
Single Family
32
Mixed Use
14
Two-Family
1
Construction by Era
Pre-1800
34
1800-1849
147
1850-1899
266
1900-1949
1,033
1950-1979
4,158
1980-1999
2,406
2000+
1,098
Market Activity
Recorded transactions from South Central Connecticut Registry of Deeds
68%
Owner-Occupied
4%
Out-of-State Owners
NE Provenance tracks recorded deeds, mortgages, and liens for 82% of Guilford 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 Guilford
South Central Connecticut · Connecticut
Zip Codes06437
22,073
Population
2020 Census
10,687
Properties
$454K
Median Assessed
68%
Owner-Occupied
47.1
Square Miles
Guilford covers 47.1 square miles in South Central Connecticut, Connecticut. The median assessed property value is $454K.
Single-family homes account for 32 of Guilford's 10,687 properties. There are 317 commercial properties and 842 parcels of vacant land. About 68% of properties are owner-occupied, and 4% are owned by someone out of state.
Assessed values range widely — the middle 50% of properties fall between $340K and $623K, with the highest assessed property at $88.5M. For professionals working in this market, the value spread tells you a lot about what you'll encounter door to door.
Most properties rely on private septic systems, and 41% have public water service. Electric service is provided by UNITED ILLUMINATING CO. 3,061 properties have identified commercial activity — restaurants, retail, professional offices, and services that give Guilford its character.
What Guilford Property Intelligence Means for Professionals
Insurance & Underwriting
With 18% of properties in FEMA flood zones and 42% in the coastal zone, Guilford concentrates several major underwriting variables. Parcel-level hazard data provides the granularity that ZIP-level aggregation misses.
Insurance solutionsReal Estate & Appraisal
Guilford's 9 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. 18% of Guilford 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 Guilford property intelligence.
10,687 Guilford 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/guilford-ct. For references or attribution, please link back to this page or neprovenance.com. Thank you, we appreciate it.