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21 Seacliff Lane, 
Miller Place, NY 11764

$1,549,900


6

Beds


6

Baths


3,565

Sq Ft


Single Family

Active

Listed by

Nicholas R. Aliano Jr

Aliano Real Estate

Last updated:

January 10, 2026, 12:28 PM

MLS#

947492

Source:

OneKey MLS

About This Home

21 Seacliff Lane

Waterfront Estate on Most Desirable Street in Town! Sitting on 1.19 acres, owning up to the high water line, this former locally renowned builders personal home is now being offered for sale. With views of the Long Island Sound and Connecticut this Farmhouse style colonial is massive at 4,400 sqft with over 12 rooms and 6 bedrooms including the separate mother/daughter suite. The grounds feature a wood bulkhead at the base of the cliff. Brick retaining walls, paver walkways and patios surrounding the inground salt water pool. The Main area of the home is not like any other and Features an entry hall with wood floor inlay, a formal Living room with a wood burning fireplace, formal dining room with window bench seat. There is an Eat In kitchen and Family room overlooking the inground pool and Long Island Sound. Upstairs there is a Primary Bedroom with a Juliet balcony, a Walk-in closet with custom closet system and a primary bath all recently redone in the past few years with a walk-in glass enclosed shower and tub area, double sink and sep water closet. There is 3 additional bedrooms and an additional full bath with marble tile also located on the second floor. In the homes basement there is an office just off the driveway, a billiard room, a media room with wet bar and Full bath. There is a mud room with laundry and 2 garages on currently being used as a home gym. And if that wasn't enough on the west side of the home is a very large 2 bedroom mother/daughter area with its own private living room, eat in kitchen, 1st floor bedroom and full bath plus an additional 1/2 bath/laundry and 2nd floor office or 2nd/guest bedroom. This home comes with private deeded beach rights for a minimal annual fee. The possibilities and views are endless!

Home Facts

Single Family

6 Baths

6 Bedrooms

Built in 1973

Price Summary

1,549,900

$434 per Sq. Ft.

MLS #:

947492

Last Updated:

January 10, 2026, 12:28 PM

Added:

10 day(s) ago


Rooms & Interior

Bedrooms

Total Bedrooms:

6

Bathrooms

Total Bathrooms:

6

Full Bathrooms:

4

Interior

Living Area:

3,565 Sq. Ft.


Structure

Structure

Architectural Style:

Farmhouse

Building Area:

3,565 Sq. Ft.

Year Built:

1973


Lot

Lot Size (Sq. Ft):

51,836


Finances & Disclosures

Finances

Price:

$1,549,900

Price per Sq. Ft:

$434 per Sq. Ft.

Source:OneKey MLS
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Contact an Agent

Yes, I would like more information. Please use and/or share my information with a Coldwell Banker ® affiliated agent to contact me about my real estate needs. By clicking Contact, I request to be contacted by phone or text message and consent to being contacted by automated means. I understand that my consent to receive calls or texts is not a condition of purchasing any property, goods, or services. Alternatively, I understand that I can access real estate services by email or I can contact the agent myself.

If a Coldwell Banker affiliated agent is not available in the area where I need assistance, I agree to be contacted by a real estate agent affiliated with another brand owned or licensed by Anywhere Real Estate (BHGRE®, CENTURY 21®, Corcoran®, ERA®, or Sotheby's International Realty®). I acknowledge that I have read and agree to the terms of use and privacy notice.