Listed on the National Register of Historic Places in 2004. 15 historic topographic surveys show this location, the earliest from 1892.
From the record
“The Edward Harden Mansion, also known as Broad Oaks, is a historic home located on North Broadway in Sleepy Hollow, New York, United States, on the boundary between it and neighboring Tarrytown. It is a brick building in the Georgian Revival style designed by Hunt & Hunt in the early 20th century, one of the few mansions left of many that lined Broadway in the era it was built.”
Wikipedia article Edward Harden Mansion, CC BY-SA 4.0.
One of 250 National Register listings published here for Westchester County · listed in 2004 · category: Building.
Architectural style. Georgian Revival architecture, Georgian architecture
National Register reference number.03001401- the number the National Park Service assigned this property when it was listed, and the key its nomination file is catalogued under at the National Archives.
Fires near this property
747 since 2000
Regional context, not property-specific
evidence. The
federal wildfire occurrence database
lists 747 fires within 5 miles of Edward Harden Mansion
between 2000 and 2020, burning about 957 acres in total. 80 started naturally. 53 were recorded as arson.
Distance is straight-line from the map coordinates, so a fire counted
here may appear on a neighbouring settlement's page as well.
Reported cause
Fires
Missing data/not specified/undetermined
419
Natural
80
Recreation and ceremony
56
Smoking
56
Arson/incendiarism
53
Debris and open burning
34
Equipment and vehicle use
29
Power generation/transmission/distribution
15
Misuse of fire by a minor
5
The most recent of
them, most recent first, with the day each was reported and the service
that recorded it.
Regional context, not property-specific
evidence. The federal mineral resources record lists
8 workings within 5 miles of Edward Harden Mansion: 5 past producers, 1 producer, 1 plant, 1 occurrence.
2 still produce. What was taken out: Iron, Lead, Silver, Molybdenum. Distance is straight-line from the
map coordinates, so a quarry counted here may appear on a neighbouring
settlement's page as well.
United States Geological Survey topographic
sheets whose coverage includes this point. Matched by taking the coordinate the National Park Service records for this property, then
testing that coordinate against the published boundary of every sheet.
Other National Register properties close
enough to walk or drive between, ordered by distance from this one. Both
positions come from the same geocoding pass that matched these properties
to their map sheets.
Listing record. National Park Service National Register of Historic Places, listed-properties dataset, current to 2026-05-22.
Map join. Address geocoded through the United States Census geocoder, then tested against the published boundary of every sheet in the USGS Historical Topographic Map Collection.
How this page is made. Listing fields come from federal records; map-sheet coverage is a labelled coordinate-to-boundary calculation, not a source-field claim.
Wildfire. Short, Karen C. 2022. Spatial wildfire occurrence data for the United States, 1992-2020 [FPA_FOD_20221014]. 6th Edition. Fort Collins, CO: Forest Service Research Data Archive. https://doi.org/10.2737/RDS-2013-0009.6 Collected with United States Government funding and usable without additional permissions or fees.
Mines and quarries. USGS Mineral Resources Data System (MRDS) https://mrdata.usgs.gov/mrds/ A work of the United States government, no copyright under 17 U.S.C. 105.
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