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Welcome to 9 Watson Street, an expansive four-bedroom, four-bathroom home offering nearly 3,000 square feet of versatile living space in a sought-after East Islip neighborhood. The main level features a spacious living room, formal dining room, inviting breakfast nook, family room with a full bath, convenient laundry room, and first-floor bedroom—providing exceptional flexibility for guests, a home office, or extended living arrangements. Upstairs, generously sized bedrooms and additional full bathrooms offer plenty of room to spread out. A partially finished basement provides even more space for recreation, storage, or future customization. Outside, the deep property features a curved driveway, deck, gazebo, and large storage shed, creating an inviting setting for relaxing and entertaining. With three separate entrances and a highly adaptable floor plan, the home also presents exciting possibilities for a private guest suite or additional living space,

Highlights

  • Residential
  • Single Family Residence
  • Built in 1925
  • 0.75 Acre Lot
  • 48 days on Market

  • Bedrooms
    4
  • Bathrooms
    4
  • Year Built
    1925
  • Architectural Style
    Colonial
  • Construction Materials
    Frame
  • Parking Features
    Driveway
  • Living Area
    2985.0
  • Appliances
    Dryer, Dishwasher, Gas Oven
  • Cooling
    None
  • Heating
    Natural Gas, Baseboard
  • Basement
    Partial, Partially Finished

  • Acres
    0.75
  • Utilities
    Natural Gas Available, Natural Gas Connected, Electricity Connected
  • Water
    Public

  • County
    Suffolk
  • City
    East Islip
  • Zip Code
    11730
  • High School
    East Islip High School
  • Middle School
    East Islip Middle School
  • Elementary School
    Ruth C Kinney Elementary School

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Frequently Asked Questions

How do I schedule a tour of 9 Watson?

We can make that happen quickly. Click Tour This Home and we'll connect you directly with our vetted local partner to schedule your visit to 9 Watson.

They know residentials in the area well and can give you the guidance you need to buy with confidence.

How do I get more information about 9 Watson?

Click Ask a Question to talk with our team. You already know it is a 4 bed, 4 bath, listed for $699,000. We can talk through recent upgrades, potential seller motivation, how this single family residence compares to others in East Islip, and can even get you in to see the property quickly.

How much is the monthly mortgage payment for 9 Watson?

With a 20% down payment and a 30-year fixed loan at an illustrative 7.25% rate, the ez Mortgage Calculator estimates the monthly payment for 9 Watson at around $5,366. This includes estimated property taxes and insurance.

Want to see how this changes with different down payments or interest rates? Jump to the calculator to run the numbers and fine-tune your plan.

How do I get pre-approved to buy 9 Watson?

Stand out in a competitive market by getting pre-approved today. Our quick and private pre-approval process helps you understand your true buying power—no credit pull required to explore all of your options.

Or, let us connect you with our preferred local lender in Suffolk County. They will give you all of your available financing options, based on your specific situation and what is available to you.

Can I negotiate the asking price for 9 Watson?

In most cases, yes. Whether 9 Watson is priced competitively or not, your best offer depends on your personal situation, the seller's timeline, and recent activity in East Islip's market. Our preferred local partner will help you craft a strategy—factoring in comparable properties that have sold, timing, and deal structure—to make a smart, strong offer. Click here to ask about negotiation opportunities.

How do I make an offer on 9 Watson?

We can handle that for you. Our preferred local agent specializes in residentials in East Islip and can guide you through every step of the offer process.

You need an expert who is looking out for your best interests. From market valuation to contingencies and timing, they'll help you present a compelling offer that fits your goals. Click Ask a Question to get started today.

What is the price per square foot for this home?

This home is listed at $699,000 with 2,985 sqft of space—that comes out to approximately $234 per square foot.

How long has this property been on the market?

9 Watson was listed on September 24, 2026, which means it's been on the market for 48 days.

Want to keep tabs on it? Click the ♥ to favorite this home and get notified of price drops or changes.

When was this house built?

This home was built in 1925, making it approximately 101 years old.

What is the lot size of this property?

9 Watson sits on a 0.75-acre lot, which is 32,670 square feet.

What schools are assigned to this property?

Based on MLS info, this home is zoned for:

  • Elementary: Ruth C Kinney Elementary School
  • Middle: East Islip Middle School
  • High: East Islip High School

Want to see how these schools compare? Check out our Suffolk County School Guide to see ratings, reviews, and more for the schools in the area.

What are the property taxes for 9 Watson?

The most recent public record shows annual property taxes for 9 Watson were approximately $16,659. This may change with reassessment or exemptions. Our local partner can verify current tax amounts and help you estimate future costs based on your situation.

Is 9 Watson still available for sale?

Yes, this home is still available! Click the ♥ to favorite it so you don't miss any changes—or ask our local expert to schedule a time to see it in person.

Source: ez Home Search, MLS Data

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Listing information provided exclusively for consumers' personal, non-commercial use and may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing. Information deemed reliable but not guaranteed by the MLS. The listing broker’s offer of compensation is made only to participants of the MLS where the listing is filed. Copyright 2026, OneKey MLS. All rights reserved.

Last Updated: November 11, 2026 at 05:17AM | Source: OneKey MLS | MLS#: 1054994