40 William St, Smithtown, NY 11787
OFF MARKET

40 William St
Smithtown, NY 11787

  • 3 Beds
  • 2 Baths
  • 1,956 sqft

$773,200

Trulia Estimate
as of May 28, 2026
Est. Refi. Payment $5,015/mo*
Refinance Your Home

$773,200

Trulia Estimate
as of May 28, 2026
Est. Refi. Payment $5,015/mo*
Refinance Your Home
3 Beds
2 Baths
1,956 sqft

Local Information

Map showing home location
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-- mins to
Commute Destination

Description

This single-family home is located at 40 William St, Smithtown, NY. 40 William St is in Smithtown, NY and in ZIP code 11787. This property has 3 bedrooms, 2 bathrooms and approximately 1,956 sqft of floor space. This property has a lot size of 10018 sqft and was built in 1947.
This property is off market, which means it's not currently listed for sale or rent on Trulia. This may be different from what's available on other websites or public sources.

Home Highlights

Parking
No Info
Outdoor
No Info
A/C
Heating only
HOA
None
Price/Sqft
No Info
Listed
No Info

Home Details for 40 William St

Interior Features

Interior Details
Basement
Heating & Cooling
Heating: OtherHeating Fuel: Other
Levels, Entrance, & Accessibility
Stories: 2
Fireplace & Spa
Fireplace

Property Information

Year Built
Year Built: 1947
Property Type / Style
Property Type: Single Family HomeArchitecture: Colonial

Exterior Features

Exterior Home Features
Exterior: Wood

Community

Units in Building: 1

Lot Information

Lot Area: 10018 sqft
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Property Tax and Assessment

Year2025
Tax
Assessment$684,250
Home facts updated by county records

Comparable Sales for 40 William St

Address
Distance
Property Type
Sold Price
Sold Date
Bed
Bath
Sqft
13 Friendly Road, Smithtown, NY
0.24
Single-Family Home
$785,000
10/02/25
4
2
1,657
6 Sycamore Place, Smithtown, NY
0.54
Single-Family Home
$680,000
11/03/25
3
2
1,850
58 Rhoda Avenue, Smithtown, NY
0.30
Single-Family Home
$760,000
02/04/26
3
2.5
2,462
11 Kim Avenue, Smithtown, NY
0.51
Single-Family Home
$790,000
11/06/25
3
2
1,833
38 Hallock Avenue, Smithtown, NY
0.51
Single-Family Home
$615,000
01/22/26
3
2.5
1,800
90 Rhoda Avenue, Nesconset, NY
0.41
Single-Family Home
$820,000
09/29/25
4
2.5
2,000
43 Sheppard Lane, Smithtown, NY
0.36
Single-Family Home
$770,000
09/19/25
3
2
1,500
7 Larsen Avenue, Smithtown, NY
0.26
Single-Family Home
$600,000
08/19/25
3
1
1,769
11 Rhoda Avenue, Smithtown, NY
0.11
Single-Family Home
$530,000
02/17/26
3
2
1,547
103 Paddington Circle, Smithtown, NY
0.42
Single-Family Home
$815,000
09/12/25
3
2.5
1,937

Nearby homes

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Assigned Schools

These are the assigned schools for 40 William St.
View nearby schools on GreatSchools
The GreatSchools Rating compares schools on a variety of school quality indicators including test scores, college readiness, equity and more. Learn more.

What Locals Say about Smithtown

At least 231 Trulia users voted on each feature.

  • 92 % Say car is needed

  • 89 % Say it's dog friendly

  • 88 % Say parking is easy

  • 88 % Say yards are well-kept

  • 85 % Say there's holiday spirit

  • 76 % Say it's quiet

  • 74 % Say people would walk alone at night

  • 67 % Say there's wildlife

  • 60 % Say they plan to stay for at least 5 years

  • 60 % Say kids play outside

  • 57 % Say neighbors are friendly

  • 55 % Say streets are well-lit

  • 41 % Say there are sidewalks

  • 39 % Say it's walkable to restaurants

  • 39 % Say there are community events

  • 37 % Say it's walkable to grocery stores

Sourced by Trulia users. Learn more about our methodology.
  • nancy hark
    "I have to commute very far - it takes 1-1/2 to 2 hours. There is always traffic on the route. Working from home would be better for me."
    1
    Flag
  • Madeline Barbera
    "There’s a nice dog area in blydenburgh park but this is a horse neighborhood there are over 10,000 horses living here "
    0
    Flag
  • Jackedon24s
    "I’ve lived here my whole life, and everybody is for the most part, friendly and watch out for each other"
    0
    Flag
  • Elle Tee
    "There are lots of families in this area. It’s very neighborly. Only issue would be the occasional larceny out of cars left unlocked at night. "
    1
    Flag
  • Cgallaer
    "Short drive to from the Deer Park and Smithtown LIRR stations. Not too far from the Huntington or Babylon stations. "
    1
    Flag
  • Kimani J.
    "Most residents do not use public transportation. You will need your own vehicle in order to get around. "
    0
    Flag
  • Cgallaer
    "Great place to raise a family with lots of parks and other outdoor activities. It’s also close to other towns in Suffolk County, beaches, and has several LIRR train lines nearby. "
    4
    Flag
  • Cgallaer
    "I work in Manhattan so I take the LIRR to work. There are several train stations in the area and most have lots of parking and good service. "
    3
    Flag
  • Ejclassicdesign
    "Very nice area, safe and close to the beach. Nice school district. It is pricey to attain entrance into the housing market but the values tend to increase relatively fast over time. "
    6
    Flag
  • Robert B.
    "Very safe neighborhood, friendly residents, good schools, very good shopping areas. Has good parks and hiking areas. "
    4
    Flag
  • A &. J. G.
    "Love this neighborhood and having everything so close. I wish there was more Hispanic restaurants around since we love that type of food and have to go far to get it."
    5
    Flag
  • A &. J. G.
    "Quite neighborhood to take a stroll either alone, with the kids or family, or simply to walk the dog. The streets are clean and you feel safe."
    1
    Flag
  • rg9623
    "Smithtown is a great place to raise a family. Has great public schools and has great parks and recreation. Beach’s are close and well maintained "
    5
    Flag
  • Adrian M.
    "Nice houses, safe, close to shopping and entertainment, limited public transportation and expensive."
    0
    Flag
  • hanalu
    "I live here for two years for now, it’s a quiet and safe place, nice people around, and great schools. The tax is crazy high, but if you can handle the housing price and the tax, you are all good to go. Many restaurants nearby, although not very diversity, but still satisfy your basic needs. "
    1
    Flag
  • Laura N.
    "Dog loving community. Great family town. Great school district. Enjoyed 23 years here. Highly recommended."
    0
    Flag
  • Adrian M.
    "The commute itime depends on the time of the day. At noon, traffic can be heavy downtown. Smithtown bypass traffic is usually good."
    0
    Flag
  • Alidalang4
    "Great community and accessibility to shopping and stores . The neighborhoods and neighbor are nice and maintained. Quiet clean neighborhood. "
    1
    Flag
  • Danielle M.
    "Amazing place to raise kids. Great school Districts and opportunities for students to do extra curricular activities as well as sports. The neighborhood is really community oriented and children are often seen in the area playing. One of the biggest benefits is there are many great families and places for the kids to play. I think you will be impressed with the schools and the participation of the staff and teachers. "
    0
    Flag
  • Unspecified
    "Neighbors look out for one another. The homes are well kept. Good schools. Town services are good. Great bars and restaurants nearby."
    1
    Flag
  • Mpyles1982
    "Great schools, early morning drop off available for working parents. A lot of activities to keep your children busy. The only downside is the area lacks diversity."
    0
    Flag
  • Heavensentforeva
    "Great family location. There are also tons of dog people where I currently reside. We usually all walk our dogs together. It is a tight knit community. Everyone pretty much knows everyone on our block. "
    0
    Flag
  • Robertaglasser
    "The homes are very unique many different styles of homes from capes to ranches to split levels nice neighborhoods for raising family "
    1
    Flag
  • Mayivalenzuela
    "We have a very safe, clean and peaceful environment. Near public and private beaches and parks. Great School district. "
    1
    Flag
  • Marissa
    "I’ve lived here for 9 years and everything is centrally located. Wonderful for families especially young ones. "
    1
    Flag

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40 William St, Smithtown, NY 11787 is a 3 bedroom, 2 bathroom, 1,956 sqft single-family home built in 1947. This property is not currently available for sale. The current Trulia Estimate for 40 William St is $773,200.