NE Provenance

18 Close Rd

Greenwich, CT 06830

residentialSingle Family
Owner
Gbf...
Owner Type
LLC
Tenure
2 yrs
Assessed
$22,156,500
Built
2018
Sq Ft
11,079
Lot
27.2 ac
Bed/Bath
5/8
Type
Single Family
Elevated Risks17ConditionC1Fire GradeDPermits23Last PermitSep 2025FloodX

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18 Close Rd, Greenwich, CT 06830— Property Report

Home& Property Details

18 Close Rd is a Contemporary single family built in 2018 located in Greenwich, Western Connecticut Planning Region, CT. The home has 11,079 square feet of living area on a 27.2-acre lot. The home has 5 bedrooms, 8 bathrooms, 2 half baths across 2 stories.

Flood Zone & Natural Hazard Assessment

18 Close Rd is in FEMA flood zone X. Zone X is outside the Special Flood Hazard Area, meaning the property has minimal flood risk according to FEMA mapping. 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 18 Close Rd at Grade D (Limited fire protection access). The nearest fire station, Greenwich Fire Department Station 6 Round Hill, is 1.4 miles away. This grade reflects fire station proximity, department capabilities, hydrant coverage, and municipal water infrastructure. Properties with Grade D or E may face higher insurance premiums due to limited fire protection resources.

Building Permits & Property History

Municipal records show 23 building permits on file for 18 Close Rd. The most recent permit was filed September 4, 2025. In the past five years, 4 permits have been issued. The current municipal assessment is $22,156,500, with $6,462,600 attributed to land and $15,693,900 to improvements. The property last sold on August 17, 2023 for $30,000,000.

Environmental & Land Use

18 Close Rd is classified as a waterfront property. Dam exposure is rated Low.

GreenwichNeighborhood & Community

18 Close Rd is located in Greenwich, Western Connecticut Planning Region, CT. The property is zoned RA-4 (Single Family). 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 92%. The property is served by the Greenwich school district.

Full Property Intelligence Report

The complete NE Provenance report for 18 Close Rd, Greenwich, 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.