Welcome to 821 Peconic Street — an oversized, custom ranch in the highly desirable Connetquot School District offering the perfect blend of craftsmanship, luxury, space, and modern convenience.
From the moment you enter, you’re greeted by a stunning open floor plan with vaulted ceilings, custom millwork, oak beams, rich wood flooring, and a gorgeous stone wood-burning fireplace that anchors the main living space. The custom-designed kitchen features cherry wood cabinetry, granite countertops, stainless steel appliances, vaulted ceilings, tile flooring, and sliding glass doors leading out to a private paver patio, perfect for relaxing outdoors.
The formal dining room is equally impressive, complete with tray ceilings, inset lighting, and an elegant flow into the main living area. The home’s grand primary suite is truly one of the largest on the market, featuring vaulted ceilings, two massive walk-in closets, and a spa-inspired marble bathroom with radiant heat, sunken jetted tub, separate shower, and double vanity.
Three additional queen-size bedrooms, a beautifully appointed family bath, a full stand-up attic, central air, owned solar panels, and a brand-new driveway add even more value and convenience.
The fully renovated basement takes this home to another level, offering radiant floors, a gas fireplace, a gorgeously updated full bathroom, a full-service wet bar with quartz countertops, and an additional guest room, office, or flex space — ideal for extended living, entertaining, or working from home.
With radiant flooring throughout the entire home, including the basement, owned solar panels, custom details throughout, and a mint-condition interior, this is not your average ranch. Spacious, elegant, and loaded with upgrades. This is the one you have been waiting for!
25 days
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2,797
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216
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Likely to sell faster than
Zillow last checked:
Listing updated:
Listed by:
Frontline Realty Group LLC631-938-1481,
Michael V. Foley631-612-6874
Source: OneKey® MLS as distributed by MLS GRID,MLS#: 1013762
Facts & features
Interior
Bedrooms & bathrooms
Bedrooms: 4
Bathrooms: 3
Full bathrooms: 3
Heating
Natural Gas, Radiant Floor
Cooling
Central Air
Appliances
Included: Dishwasher, Oven, Refrigerator
Laundry: Washer/Dryer Hookup, Laundry Room
Features
First Floor Bedroom, First Floor Full Bath, Beamed Ceilings, Breakfast Bar, Cathedral Ceiling(s), Chandelier, Chefs Kitchen, Crown Molding, Double Vanity, Eat-in Kitchen, His and Hers Closets, Natural Woodwork, Open Kitchen, Pantry, Primary Bathroom, Storage, Walk-In Closet(s)
Flooring: Hardwood
Basement: Full
Attic: Full
Number of fireplaces: 2
Interior area
Total structure area: 2,460
Total interior livable area: 2,460 sqft
Property
Parking
Parking features: Driveway
Has uncovered spaces: Yes
Features
Fencing: Fenced,Full,Vinyl
Lot
Size: 0.29 Acres
Features: Corner Lot
Details
Parcel number: 0500086000100013000
Special conditions: None
Construction
Type & style
Home type: SingleFamily
Architectural style: Exp Ranch
Property subtype: Single Family Residence, Residential
Materials
Frame
Condition
Year built: 1930
Utilities & green energy
Sewer: Septic Tank
Water: Public
Utilities for property: Natural Gas Connected
Community & HOA
HOA
Has HOA: No
Location
Region: Ronkonkoma
Financial & listing details
Price per square foot: $305/sqft
Tax assessed value: $41,000
Annual tax amount: $11,932
Date on market: 6/24/2026
Cumulative days on market: 24 days
Listing agreement: Exclusive Right To Sell
Estimated market value
Zestimate®
Not available
Estimated sales range
Not available
Rent Zestimate®
Not available
Price history
Date
Event
Price
7/14/2026
Pending sale
$750,000$305/sqft
Source: OneKey® MLS as distributed by MLS GRID #1013762Report a problem
6/24/2026
Listed for sale
$750,000+22%$305/sqft
Source: OneKey® MLS as distributed by MLS GRID #1013762Report a problem
All calculations are estimates and provided by Zillow, Inc. for informational purposes only. Actual amounts may vary.
HOA fees may include property taxes on listings classified as Co-Ops. Contact the listing agent and/or owner for fee details.
Mortgage interest rates are dependent on a number of factors, including credit score, down payment, and repayment length. Interest rate data provided by Zillow Group Marketplace, Inc. as of 1/1/1970 from various mortgage lenders with which we have lead or other similar arrangements; the Estimated Payment is an average of those rates.
See how much you could borrow to make a competitive offer.
Source: OneKey® MLS as distributed by MLS GRID. This data may not be complete. We recommend contacting the local school district to confirm school assignments for this home.