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New York>Nassau County>Locust Valley

21 Weir LaneLocust Valley, NY 11560

For Sale

$1,695,000

Smart Buyer Rebate $16,950

Step into timeless elegance with this move-in ready Locust Valley gem. Built in 1936, this residence beautifully preserves its classic character while offering every modern comfort for today’s lifestyle. Inside, gleaming hardwood floors lead you through a thoughtful layout, centered by a warm living area featuring a wood-burning fireplace and a formal dining room designed for effortless entertaining.

The transition to outdoor living is seamless. The large brick patio, anchored by a built-in gas fire-pit and grill, serves as a natural extension of the home—perfect for hosting gatherings or enjoying quiet evenings al fresco.

The upper level offers four spacious bedrooms and three full bathrooms. A unique feature of this home is the private back staircase, which provides a separate entrance for a guest suite or staff quarters, ensuring privacy for everyone. Situated on a professionally landscaped half-acre, the grounds are a true retreat, adorned with specimen trees and lush plantings that offer a sense of seclusion. With ample room for a pool, the backyard is a blank canvas.

Located just moments from the village’s renowned restaurants, boutique shopping, transportation, country clubs, and local beaches, this property offers the very best of Locust Valley in town living.

Listed by Robert A. Hulse CBR

·

Compass Greater NY LLC

·

917-742-1373

Last updated September 09, 2026

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Source: OneKey #1047907

Listing Facts

  • TypeSingle-family
  • NeighborhoodLocust Valley
  • Bedrooms4
  • Bathrooms4
  • Days on Prevu7
  • Taxes$19,874.77/year
  • Size2,144 sqft
  • Price per sqft$791

Amenities

  • Dishwasher
  • Washer/Dryer
  • Air Conditioning
  • Parking

Location

Mortgage Calculator

Listing History

09/08/2026
Listed by Compass Greater NY LLC
$1,695,000
  1. 09/08/2026$1,695,000
    Listed by Compass Greater NY LLC

Property Details for 21 Weir Lane

Exterior

Construction

  • Property Attached: Yes
  • Property Condition: Updated/Remodeled
  • Year Built: 1936
  • Architectural Style: Colonial
  • Construction Materials: Frame
  • Exterior Features: Fire Pit, Mailbox, Rain Gutters

Features

  • Fencing: Back Yard, Fenced, Vinyl, Wood

Measurements

  • Building Area Units: Square Feet
  • Lot Size Acres: 0.48
  • Lot Size Square Feet: 21,000

Financial

Taxes

  • Parcel Number: 2489-30-066-00-0029-0
  • Tax Annual Amount: $19,874.77
  • Tax Assessed Value: $759.00
  • Tax Year: 2026

Interior

Features

  • Appliances: Dishwasher, Dryer, Gas Cooktop, Gas Oven, Oven, Range, Refrigerator, Stainless Steel Appliance(s), Washer, Gas Water Heater
  • Fireplace Features: Living Room, Wood Burning
  • Fireplace: Yes
  • Fireplaces Total: 1
  • Interior Features: Built-in Features, Crown Molding, Eat-in Kitchen, Entrance Foyer, Formal Dining, Original Details, Primary Bathroom, Quartz/Quartzite Counters, Recessed Lighting, Storage, Washer/Dryer Hookup

Measurements

  • Living Area: 2,144
  • Living Area Source: Public Records

Rooms

  • Basement: Full
  • Has Basement: Yes
  • Bathrooms Full: 3
  • Bathrooms Half: 1
  • Bathrooms Total Integer: 4
  • Bedrooms Total: 4
  • Rooms Total: 9

Other

Location

  • Tax Block: 066
  • Tax Lot: 29

Parking

Parking

  • Garage Spaces: 2
  • Garage: Yes
  • Parking Features: Driveway
  • Parking Total: 3

Schools

Elementary School

  • Elementary School: Ann Macarthur Primary School
  • Elementary School District: Locust Valley

High School

  • High School: Locust Valley High School
  • High School District: Locust Valley

Middle or Junior School

  • Middle Or Junior School: Locust Valley Middle School
  • Middle Or Junior School District: Locust Valley

Utilities

Equipment

  • Cooling: Central Air
  • Heating: Forced Air
  • Sewer: Cesspool
  • Utilities: Natural Gas Connected
  • Water Source: Public

Frequently Asked Questions

How many bedrooms and bathrooms does this single-family home have?

There are 4 bedrooms and 4 bathrooms in this single-family home at 21 Weir Lane.

What schools are nearby to 21 Weir Lane?

Nearby schools include the Ann Macarthur Primary School Elementary School, Locust Valley Middle School, and Locust Valley High School.

Does this single-family home have parking?

Yes, there are 2 parking spaces available for 21 Weir Lane.

What are the annual taxes for 21 Weir Lane?

Annual taxes for this single-family home are estimated at $19,874.

How does 21 Weir Lane compare to other single-family homes in Locust Valley?

This single-family home is listed 76% above the average price for single-family homes in Locust Valley and has been on the market for 47 less days than the typical home in this area.

What is the square footage on this single-family home?

According to the MLS, this listing is 2,144 sqft.

21 Weir Lane is a 4-bedroom, 4-bath single-family home for sale in Locust Valley NY 11560. On Prevu for 7 days at $1,695,000. This home features 2,144 square feet of living space, located in Locust Valley. The median listing price for single-family homes in this area is $977,000. Nearby schools include Ann Macarthur Primary School Elementary School, Locust Valley Middle School, and Locust Valley High School. Property amenities include dishwasher, air conditioning, parking, and washer/dryer. Explore more single-family home listings in Nassau County.

The data relating to real estate for sale on this website comes in part from the IDX Program of OneKey™ MLS. The source of the displayed data is either the property owner or public record provided by non-governmental third parties. It is believed to be reliable but not guaranteed. This information is provided exclusively for consumers’ personal, non-commercial use. Information Copyright 2026, OneKey™ MLS. All Rights Reserved.

Full MLS Disclaimers

Rebate estimate is indicative only and based on listing price and estimated buyer's agent commission paid by owner, if applicable. Final rebates are subject to Terms of Use and may vary due to final negotiated transaction terms.