NE Provenance

12 Grahampton Ln

Greenwich, CT 06830

Residential Other
Owner
Squ...
Owner Type
Individual
Tenure
3 yrs
Assessed
$4,942,800
Built
1939
Sq Ft
5,626
Lot
2.50 ac
Bed/Bath
—
Type
Residential Other
Elevated Risks20ConditionC1Fire GradeCPermits50Last PermitJul 2025FloodX

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12 Grahampton Ln, Greenwich, CT 06830— Property Report

Home& Property Details

12 Grahampton Ln is a Colonial residential other built in 1939 located in Greenwich, Western Connecticut Planning Region, CT. The home has 5,626 square feet of living area on a 2.50-acre lot.

Flood Zone & Natural Hazard Assessment

12 Grahampton Ln 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 High. 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 12 Grahampton Ln at Grade C (Adequate fire protection access). The nearest fire station, Greenwich Fire Department Station 8 Back Country, is 2.0 miles away. This grade reflects fire station proximity, department capabilities, hydrant coverage, and municipal water infrastructure.

Building Permits & Property History

Municipal records show 50 building permits on file for 12 Grahampton Ln. The most recent permit was filed July 29, 2025. In the past five years, 2 permits have been issued. The current municipal assessment is $4,942,800, with $1,870,000 attributed to land and $3,072,800 to improvements. The property last sold on November 17, 2022 for $5,350,000.

GreenwichNeighborhood & Community

12 Grahampton Ln is located in Greenwich, Western Connecticut Planning Region, CT. The property is zoned RA-2 (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 84%. The property is served by the Greenwich school district.

Full Property Intelligence Report

The complete NE Provenance report for 12 Grahampton Ln, 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.