For Sale98d on market
21 Astor Avenue
Saint James, NY, 11780 • 11780 • Suffolk County
$1,599,000
$386/sqft
-$50,000 since Mar 3, 2026
Down payment assistance available
6Beds
4Baths
4,147Sqft
0.75 acLot
2001Built
Property DNA
Colonial Style
Built 2001 · 25 years of history
Outdoor Living
Patio · Porch
3 Fireplaces
Bedroom · Family Room · Living Room
Special Features
Cabana · Pool House
Private Pool
In Ground · Vinyl
2-Car Garage
Driveway · Garage · Off Street · Private
Premium Finishes
Crown Molding · Granite Counters
Ceramic Tile & Hardwood Floors
Quality flooring throughout
This home is getting attention
Listed 98 days ago · 2,318 views · 70 saves
Market activity
Demand and pricing signals for this listing
2,318 views
People checking out this listing
70 saves
Buyers have saved this home
98 days on market
Established listing
$386/sqft
Price per square foot
Selling Soon Prediction
ModerateThis home ranks in the top 42% of listings most likely to go under contract soon, based on market activity and demand signals.
Likelihood score
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About this home
Single Family · Built 2001
21 Astor Ave Is Located In The Heart Of Saint James Within The Desirable Smithtown School District. This Custom Built And Architecturally Appealing 6 Bedroom, 3.5 Bath Colonial Is Only 25 Years Young & Sits On 3/4 Of An Acre. A Charming Open Front Porch Greets You Before You Enter The Large 2 Story Foyer With Grand Staircase & A Motorized Chandelier. A Bright Formal Living Room Awaits Your Guests Before You Sit Down For A Meal In The Formal Dining Room Featuring A Tray Ceiling. Lovely Hardwood Floors Throughout The Home. The Spacious Custom Kitchen With Island Has Plenty Of Room For A Dining Table And Is Open To The Family Room With Wood Burning Fireplace. There Is Also A Large Enclosed Porch For More Entertaining Space That Leads To The Rear Yard. You And Your House Guests Or In-Laws Will Appreciate The Privacy Of The 1st Floor Guest Quarters With Full Bath & Separate Entrance Complete With Mud Room And Drop Off Station Or This Could Easily Double As A Home Office. The 2nd Level Has 5 Bedrooms, A Full Bath, Laundry Room, And A Large Private En-Suite With Gas Fireplace, Walk-In Closet, And Full Bath With Tub And Separate Shower Stall. If The 4,147 Square Feet Of Living Space Wasn't Enough For You, Then Maybe The Full Finished Basement With A Home Pub & Half Bath Will Help! Wait! Theres More!! Attached 2 Car Garage, Inground Pool, & BONUS Fully Equipped Pool House With CAC & Heat! An Incredible Value For This Much House! Owner Motivated. Let’s Talk!
Estimated monthly payment
Based on current rates
$10,534/month
Principal & Interest$8,402
Property Tax$1,599
Insurance$533
Down payment20% ($319,800)
3%50%
Est. 6.87% rate · 30yr fixed · $1,279,200 loan
Full calculator →At a glance
Key facts and listing details
TypeSingle Family Residence, Residential
Year Built2001
HeatingOil
CoolingCentral Air
Parking2 Garage spaces
Lot0.75 Acres
Days on Zillow98 Days
Price/sqft$386
Property
Home typeSingle Family
Sub-typeSingle Family Residence, Residential
StyleColonial
ConditionActual
Year built2001
Systems
HeatingOil
CoolingCentral Air
ConstructionWood Siding
Water / SewerPublic / Cesspool
Parking & Outdoor
ParkingDriveway, Garage, Off Street, Private
Garage2 spaces
BasementFinished,Full
Fireplaces3
Lot0.75 Acres
Location & Tax
Neighborhood11780
Annual tax$27,522
Parcel0800087000100004001
Bathrooms & Fees
Full baths3
Features & details
13 categories of property features
Interior Features
Interior
First Floor Bedroom
First Floor Full Bath
Cathedral Ceiling(s)
Crown Molding
Eat-in Kitchen
Entrance Foyer
Formal Dining
Granite Counters
In-Law Floorplan
Kitchen Island
Open Kitchen
Primary Bathroom
Recessed Lighting
Tray Ceiling(s)
Appliances
Dishwasher
Gas Range
Microwave
Range
Refrigerator
Washer
Oil Water Heater
Flooring
Ceramic Tile
Hardwood
Heating
Oil
Cooling
Central Air
Laundry
Washer/Dryer Hookup
Fireplace
Bedroom
Family Room
Living Room
Exterior Features
Parking
Driveway
Garage
Off Street
Private
Construction
Wood Siding
Patio & Porch
Patio
Porch
Pool Features
In Ground
Vinyl
Utilities
Electricity Connected
Propane
See Remarks
Water Connected
Other Structures
Cabana
Pool House
Listing insights
Market data and value estimates
StatusFor Sale
Days on market98
Tax rate1.85%
Price/sqft$386
On marketJan 14, 2026
PostedJan 7, 2026
Last sold$1,550,000
MLS updatedApr 11, 2026
Tour days9
Views2,318
Favorites70
How are the schools in Saint James?
3 schools rated nearby
Location
Saint James, NY, 11780
Price history
9 events
DateEventPrice$/sqftSource
Mar 3, 2026Price Change$1,599,000$386OneKey® MLS as distributed by MLS GRID
Feb 4, 2026Price Change$1,649,000$398OneKey® MLS as distributed by MLS GRID
Jan 14, 2026Listed For Sale$1,699,000$410OneKey® MLS as distributed by MLS GRID
May 19, 2023Sold$1,550,000$374Public Record
Jul 7, 2022Sold$1,550,000$374OneKey® MLS as distributed by MLS GRID
Apr 9, 2022Pending Sale$1,500,000$362OneKey® MLS as distributed by MLS GRID
Mar 22, 2022Listed For Sale$1,500,000$362OneKey® MLS as distributed by MLS GRID
Sep 13, 2017Sold$925,000$223OneKey® MLS as distributed by MLS GRID
Apr 6, 2007Sold$960,000$231Public Record
Price Change$1,599,000
Mar 3, 2026•$386/sqft•OneKey® MLS as distributed by MLS GRID
Price Change$1,649,000
Feb 4, 2026•$398/sqft•OneKey® MLS as distributed by MLS GRID
Listed For Sale$1,699,000
Jan 14, 2026•$410/sqft•OneKey® MLS as distributed by MLS GRID
Sold$1,550,000
May 19, 2023•$374/sqft•Public Record
Sold$1,550,000
Jul 7, 2022•$374/sqft•OneKey® MLS as distributed by MLS GRID
Pending Sale$1,500,000
Apr 9, 2022•$362/sqft•OneKey® MLS as distributed by MLS GRID
Listed For Sale$1,500,000
Mar 22, 2022•$362/sqft•OneKey® MLS as distributed by MLS GRID
Sold$925,000
Sep 13, 2017•$223/sqft•OneKey® MLS as distributed by MLS GRID
Sold$960,000
Apr 6, 2007•$231/sqft•Public Record
Tax history
21 years of records
YearTax paidAssessed value
Apr 15, 2024—$9,340
Apr 15, 2023—$9,340
Apr 15, 2022—$9,340
Apr 15, 2021—$9,240
Apr 15, 2020—$9,240
Apr 15, 2019—$9,240
Apr 15, 2018—$9,240
Apr 15, 2017$19,334$9,240
Apr 15, 2016—$9,240
Apr 15, 2015—$9,240
Apr 15, 2014—$9,240
Apr 15, 2013—$9,240
Apr 15, 2012—$10,190
Apr 15, 2011—$10,190
Apr 15, 2010—$10,528
Apr 15, 2009—$10,528
Apr 15, 2008—$10,528
Apr 15, 2007$19,906$10,528
Apr 15, 2005$18,812$12,500
Apr 15, 2004$17,516$12,500
Apr 15, 2003$19,293$14,755
Nearby homes
Neighborhood details
Local context around this listing
Saint James, NY • Suffolk County
Nearby cities
Bay ShoreBrentwoodCentral IslipHuntingtonHuntington StationLindenhurstPatchogueRonkonkoma
Nearby zip codes
11780
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Based on information submitted to the MLS GRID as of 2026-02-06 15:18:24 PST. All data is obtained from various sources and may not have been verified by broker or MLS GRID. Supplied Open House Information is subject to change without notice. All information should be independently reviewed and verified for accuracy. Properties may or may not be listed by the office/agent presenting the information. Some IDX listings have been excluded from this website. [Click here for more information](/mls-disclaimers/#778)
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