Sign up to get new listings emailed daily! JOIN SIGN IN
Mary Alice Ruppert
Licensed Associate Real Estate Broker, Career and Business Development Leader
REALTOR®, ABR, AHWD, C2EX, CRB, ePro, GRI, SFR, SRES
Facebook Icon LinkedIn Icon YouTube Icon Pinterest Icon Instagram Icon Yelp Icon Blog Icon Realtor.com Icon Zillow Icon Twitter Icon 

9 Keystone Court, Centereach, NY 11720

$749,000
  • 9 Keystone Court, Centereach, NY 11720 Main Photo

33 Total Photos [Click to View All]

New to the Market Active
BEDS4 BATHS3 full 1 partial SQUARE FEET1,892 MLS#975184
STATUSActive PROPERTY TYPEResidential - Single Family SCHOOLMiddle Country

Property Description

PRIDE OF OWNERSHIP And yes, you'll notice it the second you pull up. Don't worry, the curb appeal won't bite...unless you insult the mailbox.Welcome to this BEAUTIFULLY MASSIVE Colonial at the end of a Cul-de-Sac. Translation: less traffic, more peace, and neighbors who actually wave instead of stealing your Amazon packages.4 Bedrooms / 3.5 Baths which is enough space for a home office, gym, guest room, or that weird 'I'm gonna start a band you've been planning since 2019.Step into a SUN-DRENCHED foyer with porcelain and hardwood floors that scream, 'Look at me, I'm fancy! The oversized den comes with a wood-burning fireplace, perfect for cozy nights, Hallmark moments or dramatic staring contests.Formal Dining Room? Check.Formal Living Room? Check.Hosting Holidays? Congratulations....it's now your life sentence!The GORGEOUS Kitchen (updated 2020) is basically a chef's Instagram dream: Quartz countertops, stainless steel appliances, a backsplash that whispers, 'Yeah, you cook like a pro, and sliders to the backyard so you can escape before anyone asks you to wash the dishes. Oh, and a Butler's Pantry because sometimes you want to feel fancy while hoarding snacks.Beautiful Sliding Barn Door opens to a Mudroom/Laundry combo with enough space to pretend you're organized, you know, until the kids show up.Upstairs:Master en suite with Full Bath, Tub, Separate Shower, and Walk-In Closet that's basically a boutique where nothing ever fits quite right.Three more Large Bedrooms and a Fully updated Bath. Room for everyone or just enough space to hide from everyone.Need more space? Done! Full Finished Basement with Separate Entrance. Perfect for Mom/Dad, Teenagers, a Rec Room, or a top-secret 'DO NOT ENTER lair.Upgrades that make this house smarter than most people you know:BRAND NEW ROOF 2023, because we love shiny things!2-car garage (or 3 if your cars are tiny), Attic storage, 3-zone Natural Gas Heat,2-zone CAC,IGS,80-gallon Gas Hot Water Heater because teenagers take 2 hour showers,2 cesspools (located in front, pumped 2023)Backyard? Trex deck + Fully Fenced = low maintenance, high enjoyment. Perfect for BBQs, Cornhole, or just staring at nothing while sipping something strong.Location? Close to LIRR, Shopping, Pt. Jeff & Patchogue Nightlife, and all the things you actually use...not your neighbor's life drama.Bottom line: This isn't just a House... it's the one where you walk in and immediately start rearranging imaginary furniture like a pro.Don't wait! Homes li

9 Keystone Court | MLS# 975184

This single family home located at 9 Keystone Court, Centereach, NY 11720 is currently listed for sale with an asking price of $749,000. This property was built in 1997 and has 4 bedrooms and 3 full and 1 partial baths with 1892 sq. ft. Keystone Court is located within the Middle Country school district. Search Centereach real estate on mruppert.coachrealtors.com today.

Property Features

Property Type: Residential - Single Family
Basement: Yes
Basement: Finished, Full, Walk-Out Access
Cooling: Central Air
Fenced: Yes
Fireplaces: 1
Garage: 2
Heating: Forced Air, Natural Gas
Home Style: Colonial
Lot Size: 0.53 Acres
Taxes: $16,146
Year Built: 1997

Amenities

Cathedral Ceiling(s)
Ceiling Fan(s)
Chandelier
Crown Molding
Eat-in Kitchen
Formal Dining
High Ceilings
Primary Bathroom
Quartz/Quartzite Counters
Recessed Lighting
Walk-In Closet(s)
Washer/Dryer Hookup
Mailbox

Feature Descriptions

Appliances: Dishwasher, Dryer, Gas Range, Microwave, Refrigerator, Washer, Gas Water Heater
Attic: Dormer, Full, Unfinished
Building Area Total: 2500
Days on Site: 2
Exclusions: Fridge in Basement
Exterior: Frame, Vinyl Siding
Fencing: Fenced
Fireplace Features: Family Room
Fireplace Y/N: Yes
Flooring: Laminate, Tile
Formal Dining: Yes
GarageY/N: Yes
Heating Zones: 3
Laundry: Laundry Room
Number Of Kitchens: 1
On Market Date: 2026-03-25
Parcel Number: 0200-470-00-02-00-016-005
Parking Features: Driveway
Parking Total: 5
Patio And Porch: Patio
Rental Term: Monthly
Rooms Total: 10
Security: yes
Security Features: Fire Alarm, Security System, Smoke Detector(s)
Sewer: Cesspool
Utilities: Cable Connected, Electricity Connected, Natural Gas Connected, Trash Collection Public, Water Connected
Water: Public

Local Schools

High School: Centereach High School
Middle School: Dawnwood Middle School
School District: Middle Country

Listed By / Shown By

Listing By

Agency Name: HomeSmart Dynamic Realty
Agency Contact: 631-291-6290

Shown By

Agent Name: Mary Alice Ruppert
Agent Phone: Cell: (631) 424-4639
Agency Title: Howard Hanna | Coach Realtors

IDX logo

Estimate Your Payment

Estimated Payment

$ 4,780.59 per month $3,216.64 Principal & Interest $1,345.50 Property Tax $218.46 Homeowner's Insurance

Change Payment Information

%
years/fixed
yearly
yearly (est.)
(Payments are an estimate and may vary by lender)

Let our team of knowledgeable, licensed mortgage professionals assist you in putting together a loan that is custom fitted for you, and your needs.

Disclaimer: All information deemed reliable but not guaranteed. All properties are subject to prior sale, change or withdrawal. Neither listing broker(s) or information provider(s) shall be responsible for any typographical errors, misinformation, misprints and shall be held totally harmless. Listing(s) information is provided 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 on this site was last updated 03/27/2026. The listing information on this page last changed on 03/27/2026. The data relating to real estate for sale on this website comes in part from the Internet Data Exchange program of Delta Media Group MLS (last updated Fri 03/27/2026 1:13:36 AM EST) or OneKey MLS (last updated Fri 03/27/2026 1:10:19 AM EST). Real estate listings held by brokerage firms other than Howard Hanna | Coach Realtors may be marked with the Internet Data Exchange logo and detailed information about those properties will include the name of the listing broker(s) when required by the MLS. All rights reserved.

Listing data and photos distributed by MLSGRID
Member Participants (and their affiliated licensees, if applicable) shall indicate on their websites that IDX information is provided exclusively for consumers’ personal non-commercial use, that it may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing, that the data is deemed reliable but is not guaranteed by MLS GRID, and that the use of the MLS GRID Data may be subject to an end user license agreement prescribed by the Member Participant’s applicable MLS if any and as amended from time to time. MLS GRID may, at its discretion, require use of other disclaimers as necessary to protect Member Participant, and/or their MLS from liability.
Based on information submitted to the MLS GRID. 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.



Privacy Policy / DMCA Notice / ADA Accessibility

Agency License Information: https://www.coachrealtors.com New York State Real Estate Broker Principal Office License Number: 10991237973


Login to My Homefinder

Pixel