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$999,000

For Sale - Active
3 Heidi Ln, Mount Sinai, NY 11766
4 Beds
4 Baths
3,944 Square Feet
0.93 Acres Lot
Built in 2001
For Sale - Active
Units n/a
Checked: 1 day ago
Updated: Aug 10, 2025 at 03:08AM

Investment Summary


Monthly Cash Flow
-$3,664
Cap Rate
1.7%
Cash-on-Cash Return
-19.1%
Debt Coverage Ratio
0.27
Internal Rate of Return (5 years)
-14.5%

Property Description


0.93 Acres Lot
Built in 2001
For Sale - Active
Units n/a

Secluded Gem in Blue Ribbon Mount Sinai School District! Discover an exceptional living experience at 3 Heidi Lane, a stunning Colonial-style residence privately nestled at the end of a serene cul-de-sac in desirable Mount Sinai. Perfectly placed on just under an acre, this property offers unrivaled privacy, with one side extending into state owned land, creating a tranquil and natural buffer offering seclusion from neighbors. Inside you will find a spacious and inviting layout featuring 4 bedrooms and 3.5 bathrooms, including a coveted first floor master bedroom suite (with Jacuzzi tub) for added comfort and convenience. The heart of the home is an entertainer’s dream—a wide open floor plan on the main level, including a huge living room, eat in kitchen, formal dining room and library, making it ideal for hosting gatherings both large and small. A distinct separate guest wing with separate entrance ensures ample space and comfort for visitors, or offers an ideal setup for a home office or creative studio or possible mother-daughter with proper permits, accommodating multi-generational living with ease. Additional highlights include a two-car garage, a huge basement ready for finishing, and a private backyard oasis with scenic views of the Long Island Sound from the top of the hill. Enjoy the serenity of nature, the space to entertain, and the excellence of the Mount Sinai School District—all in one breathtaking property. Don't miss your chance to own this one-of-a-kind private retreat!

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Location


Property Details


Parking

  • Details: Driveway, Garage
  • Garage Spaces: 2
  • Spaces Total: 0

Bedroom Information

  • # of Bedrooms: 4

Bathroom Information

  • # of Baths (Full): 3
  • # of Baths (Total): 4.0

Interior Features

  • # of Rooms: 11
  • # of Stories: 2
  • Basement: Yes
  • Basement Description: Full, Unfinished
  • Fireplace: Yes

Exterior Features

  • Exterior Walls Materials: Siding (Alum/Vinyl)

Land Information

  • Land Use: Residential
  • Land Use Subtype: Single Family Residential

Lot Information

  • Parcel ID: 0200093.0006.00001.000
  • Lot Size: 40511 sqft

Property Information

  • Property Type: Single Family Residence
  • Style: Colonial
  • Year Built: 2001

Tax Information

  • Annual Tax: $23,930

Utilities

  • Water & Sewer: Public
  • Heating: Forced Air
  • Cooling: Central Air

Location

  • County: Suffolk

Listing Details


Listed by:
Mia Kaiser SRES SRS
Signature Premier Properties
(631) 385-6024

Source:
OneKey MLS
MLS#: 878709
OneKey MLS

Investment Summary


Monthly Cash Flow
-$3,664
Cap Rate
1.7%
Cash-on-Cash Return
-19.1%
Debt Coverage Ratio
0.27
Internal Rate of Return (5 years)
-14.5%

Purchase Details

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Purchase price:
$999,000
Amount financed:
-$799,200
Down payment:
$199,800
Closing costs:
$29,970
Rehab costs:
$0
Initial cash invested:
$229,770
Square feet:
3,944
Cost per square foot:
$253
Monthly rent per square foot:
$1.24

Financing Details

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Loan amount:
$799,200
Loan to value ratio:
80.0%
Loan type:
Amortizing
Term:
30 years
Interest rate:
6.500%
Principal & interest:
$5,051
Property tax:
$1,994
Insurance:
$343
Private mortgage insurance (PMI):
$0
Monthly payment:
$7,388

Operating Income

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% Rent Monthly Yearly
Gross rent:
$4,900 $58,800
Vacancy loss: (6%)
6% -$294 -$3,528
Operating income:
$4,606 $55,272

Operating Expenses


% Rent Monthly Yearly
Property taxes: (41%)
41%-$1,994-$23,931
Insurance: (7%)
7%-$343-$4,116
Property management: (8%)
8%-$392-$4,704
Repairs & maintenance: (5%)
5%-$245-$2,940
Capital expenditures: (5%)
5%-$245-$2,940
HOA fees: (n/a)
n/an/an/a
Total operating expenses: (66%)
66%-$3,219-$38,631

Cash Flow


Monthly Yearly
Net operating income:
$1,387 $16,644
Mortgage payments:
-$5,051 -$60,612
Cash flow:
$3,664 $43,968