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New York>Port Chester

318 William StreetPort Chester, NY 10573

For Sale

$999,000

Smart Buyer Rebate $9,990

A fantastic opportunity to own a versatile three-family property in the heart of Port Chester, offering an ideal setup for investors, owner-occupants, or multi-generational living. Situated on a desirable corner lot, this triplex features three separate units, with the third unit spanning the top two floors and offering a spacious multi-level layout.

The property offers multiple porches and a patio, creating plenty of space to enjoy the outdoors, while the above-ground pool adds another great spot for relaxing and entertaining. A detached two-car garage provides additional parking and storage.

Conveniently located close to the Port Chester Metro-North station, as well as shopping, dining, and local amenities, this property combines flexibility, outdoor space, and a commuter-friendly location in one exceptional opportunity!

Listed by Jason Martinez

·

Keller Williams Realty Partner

·

914-962-0007

Last updated August 30, 2026

·

Source: OneKey #1039591

Listing Facts

  • TypeMulti-family
  • NeighborhoodPort Chester
  • Bedrooms7
  • Bathrooms4
  • Days on Prevu29
  • Taxes$17,330/year

Amenities

  • Private Outdoor Space
  • Swimming Pool

Location

Mortgage Calculator

Listing History

08/17/2026
Listed by Keller Williams Realty Partner
$999,000
  1. 08/17/2026$999,000
    Listed by Keller Williams Realty Partner

Property Details for 318 William Street

Exterior

Construction

  • Number Of Units Total: 3
  • Year Built: 1900
  • Architectural Style: Victorian
  • Construction Materials: Frame, Vinyl Siding
  • Exterior Features: Rain Gutters

Features

  • Fencing: Fenced
  • Other Structures: Garage(s)
  • Patio And Porch Features: Deck, Patio
  • Pool Features: Above Ground
  • Pool Private: Yes
  • Road Frontage Type: Municipal

Measurements

  • Building Area Total: 3,100
  • Building Area Units: Square Feet
  • Frontage Type: Municipal
  • Lot Features: Back Yard, Corner Lot
  • Lot Size Acres: 0.22
  • Lot Size Square Feet: 9,781

Financial

Taxes

  • Parcel Number: 4801-142-000-00029-001-0059-0000000
  • Tax Annual Amount: $17,330.00
  • Tax Assessed Value: $883,200.00
  • Tax Year: 2026

Interior

Features

  • Flooring: Hardwood, Laminate, Tile, Vinyl
  • Interior Features: Built-in Features, Ceiling Fan(s), Eat-in Kitchen, Recessed Lighting, Storage, Washer/Dryer Hookup

Rooms

  • Basement: Full
  • Has Basement: Yes
  • Bathrooms Full: 4
  • Bathrooms Total Integer: 4
  • Bedrooms Total: 7

Parking

Parking

  • Garage Spaces: 2
  • Garage: Yes
  • Parking Features: Garage, On Street

Schools

Elementary School

  • Elementary School: Park Avenue School - Westchester
  • Elementary School District: Port Chester-Rye

High School

  • High School: Port Chester Senior High School
  • High School District: Port Chester-Rye

Middle or Junior School

  • Middle Or Junior School: Port Chester Middle School
  • Middle Or Junior School District: Port Chester-Rye

Utilities

Equipment

  • Cooling: Wall/Window Unit(s)
  • Heating: Natural Gas, Radiant
  • Laundry Features: Multiple Locations
  • Sewer: Public Sewer
  • Utilities: Electricity Connected, Sewer Connected, Trash Collection Public, Water Connected
  • Water Source: Public

Frequently Asked Questions

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

There are 7 bedrooms and 4 bathrooms in this multi-family home at 318 William Street.

What schools are nearby to 318 William Street?

Nearby schools include the Park Avenue School - Westchester Elementary School, Port Chester Middle School, and Port Chester Senior High School.

Does this multi-family home have parking?

Yes, there are 2 parking spaces available for 318 William Street.

What are the annual taxes for 318 William Street?

Annual taxes for this multi-family home are estimated at $17,330.

How does 318 William Street compare to other multi-family homes in Port Chester?

This multi-family home is listed 35% above the average price for multi-family homes in Port Chester and has been on the market for 78 less days than the typical home in this area.

318 William Street is a 7-bedroom, 4-bath multi-family home for sale in Port Chester NY 10573. On Prevu for 29 days at $999,000. This residence is located in Port Chester. The median listing price for multi-family homes in this area is $624,500. Nearby schools include Park Avenue School - Westchester Elementary School, Port Chester Middle School, and Port Chester Senior High School. Additional amenities include private outdoor space and swimming pool. Browse more multi-family home listings in New York.

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.