Back 43 Casey Lane
Off Market

43 Casey Lane

Mount Sinai NY 11766

4
5
3
4400 sq. ft.
35284 sq. ft.
Single-Family
Last sold for $1,550,000
Mary Ann AdamsMary Ann Adams, last sold this property on 23 January 2026 after 231 days on market.

Overview

Welcome to this magnificent home in prestigious Mount Sinai. This home features a front porch with lighting and front waterfall. Enter into a two-story foyer through the double glass doors from Italy. This leads into the formal living room, large formal dining room with tray ceilings and into the magnificent new kitchen with an island. The kitchen has granite countertops, Viking stainless steel appliances, six burner stove, two porcelain Kohler sinks with stainless steel faucets, five decorative light fixtures, walk in pantry. From the kitchen to the dinngroom there is a butlers pantry with Viking wine fridge, cabinets with glass doors. There is a hallway leading to an office with tongue and groove and full bath. There is radiant heat in kitchen, office, hall and baths. From the kitchen, look into your large den with fireplace and Crawford ceilings. There are sliders leading to the yard. Climb the beautiful staircase to the master bedroom suite with white carpet, tray ceilings, 2 walk-in closets (one has access to attic) full bath with Jacuzzi, full shower, new vanities and radiant heat. There are 3 additional large bedrooms and a full bath with double sink, stall shower, and linen closet. The laundry room is upstairs with whirlpool washer, and dryer, table with wood counter and cabinets. There is a full finished basement with an outside entrance. The basement offers a theater room with projector & stadium seating, bedroom, full bath also storage room with Control4 smart system & dual 150 amp panels, utility room with 100 gallon hot water heater. Now go relax in your oasis backyard featuring a 20' x 40' deck with an Altima stainless steel grill, Emerson mini fridge & sink. Float away in the 45' x 45’ heated L shaped inground pool with a rock formation waterfall, outdoor Jacuzzi, pool house with full bath & sitting are and full basement for storage , gas fire pit. There are fire torches and lighting under the trees and around the pool. This home has new CAC, raised panel doors, and molding throughout. There is a 3 car garage, IGS, outdoor speakers, circular all brick driveway, Unpack and enjoy your Oasis. You’re around the corner from Heritage Park, a short ride to Port Jefferson Village, the LIRR, Port Jefferson ferry, Cedar Beach, and great restaurants and shopping.

Features

4 bedrooms
5 bathrooms
3 carspaces
3 garage spaces
4400 sq. ft. floor area
35284 sq. ft. lot size
Single-Family

Estimated Value

Based on this property and similar 4 bedroom single-family properties sold in Mount Sinai over the last 12 months, the estimated median property value of 43 Casey Lane is $810k.

Median value
$810k
Estimated value range
$600k - $1.7m
Median days on market
33
Estimated value trend
6%
increase over the last 12 months
Average days on market is based on recent, comparable sales in Mount Sinai. It is only an indication of the time a property is actively listed and should not be relied upon as an accurate representation of how soon a property will be sold.

Property history for 43 Casey Lane

2026
Sold
$1,550,000
23 Jan 2026 by Mary Ann Adams, of Signature Premier Properties

Happy sellers in Mount Sinai

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We have insufficient information to provide an overview of customer satisfaction for Mount Sinai. Viewing the agent profiles, reviews and sales for Mount Sinai can provide insights for this location.

Local market activity for 4 bedroom single-family properties in Mount Sinai

In the last 12 months, 43 four-bedroom single-family properties similar to 43 Casey Lane, have been sold.

This represents a 16% increase in four-bedroom single-family properties sales when compared to the previous 12 months.

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