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4 Deer Run

$2,995,000

Est. $18,449/mo

Sparkill, NY 10976 · Rockland County

Beds
6
Baths
3.5
Sqft
4,000
Status
Active
On site
1087 days

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About this home

Enchanted Treetops Estate, a gated 19th century Second Empire mansion, circa 1859, on over seven acres of bucolic privacy, specimen trees and the great lawn. Home of noted perfume package designer Marc Rosen and his late wife, beloved actress Arlene Dahl. Outstanding period details include very high ceilings, grand double door center hall entry, wide plaster moldings, floor-to-ceiling windows, mahogany grand staircase handrail, glamorous reception rooms with many marble mantles, window seats, arches and pocket doors. Second floor, a luxe owner's bedroom with ensuite bath, two more bedrooms and bath, plus three bedrooms, a family room and and bath on third level. Charming country kitchen features a brick fireplace and a cozy sitting/dining area leading to a matching rear gallery overlooking trees, an in-ground pool and a sizable barn with stalls for cars. The home's structural integrity features brick interior walls for fireproofing and superb insolation in heat and cold. Once a gentleman's farm, it is the former weekend home of the president of the Cunard Lines, and is one of several grand estates within the fabled hamlets of Piermont, Sparkill and Snedens Landing. Treetops Estate is about half an hour's drive from Manhattan, via the beautiful scenic Hudson-view Palisades Parkway. Additional Information: Amenities:Guest Quarters,Storage,ParkingFeatures:3 Car Detached,

Listed with Christie's Int. Real Estate · David B Sanders · Source: OneKey MLS

One Key MLS

Information provided by One Key MLS, and is deemed reliable but not guaranteed accurate. Data last updated: Sep 18, 2026, 9:07 AM ET. ©2026 One Key MLS.

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$18,448.92Total / mo

Estimated Monthly Payment

Principal & interest
$14,752.58 (80.0%)
Taxes
$3,496.33 (19.0%)
Insurance
$200.00 (1.1%)

Representative rates

Representative rates only, indicative for comparison. Edit the interest rate for your own quote; your lender’s numbers vary with credit, points, and insurance.

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Market Insights

The market around Sparkill, NY

Current Listings

New in the last 30 days

1

Sep 2026

Average Price

Active listings

$1,132,960

Sep 2026

Average Days on Market

Active listings

305 days

Sep 2026

Computed from 5 active OneKey MLS listings in Sparkill, NY.

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