Home& Property Details
3 Siwanoy Rd is a Single Family built in 1966 located in Darien, Western Connecticut Planning Region, CT. The home has 6,755 square feet of living area on a 2.40-acre lot. The home has 5 bedrooms, 5 bathrooms, 1 half bath across 2 stories.
Flood Zone & Natural Hazard Assessment
3 Siwanoy Rd is in FEMA flood zone AE. This is a Special Flood Hazard Area (SFHA) where flood insurance is typically required for federally backed mortgages. The property falls within a Category 1 hurricane storm surge inundation zone based on NOAA SLOSH modeling. The FEMA National Risk Index composite rating for this area is Relatively Moderate. The ASCE 7-22 design wind speed for this location is 123 mph. The ground snow load is 30 psf. The EPA radon zone is 1 (highest potential).
Fire Protection
NE Provenance rates the fire protection for 3 Siwanoy Rd at Grade B (Strong fire protection access). The nearest fire station, Rowayton Fire Department, is 0.5 miles away. This grade reflects fire station proximity, department capabilities, hydrant coverage, and municipal water infrastructure. Properties with Grade A or B typically receive favorable insurance rates due to strong fire protection infrastructure.
Building Permits & Property History
Municipal records show 39 building permits on file for 3 Siwanoy Rd. The most recent permit was filed January 16, 2024. In the past five years, 10 permits have been issued. The current municipal assessment is $4,983,400, with $2,085,800 attributed to land and $2,897,600 to improvements. The property last sold on October 2, 2014 for $4,320,000.
Environmental & Land Use
3 Siwanoy Rd is classified as a waterfront property. Mapped wetlands are present on or adjacent to the parcel. Dam exposure is rated Low.
DarienNeighborhood & Community
3 Siwanoy Rd is located in Darien, Western Connecticut Planning Region, CT. The property is zoned R-1 (One Family Residential 1 Acre). The median home value in this census tract is $2,000,001. Median household income is $200,001. The owner-occupancy rate in the surrounding area is 95%. The property is served by the Darien school district.
Full Property Intelligence Report
The complete NE Provenance report for 3 Siwanoy Rd, Darien, CT includes over 430 data attributes sourced from 140+ public and proprietary datasets. The full report covers building construction and materials, NEP Condition Estimate derived from permit history, system ages for roof, electrical, plumbing, and HVAC, complete ownership and deed chain with transaction classification, FEMA flood and coastal hazard analysis, environmental contamination screening, and neighborhood demographics. Available as a professional property wallet, PDF report, or structured data export.
3 Siwanoy Rd