1 / 35 
Welcome to 19 Knoll Lane, Smithtown — Where Comfort Meets Elegance
Nestled in the heart of Smithtown, this stunning 4-bedroom, 2.5-bath colonial is the home you’ve been waiting for. From the moment you step inside, you’ll be captivated by the thoughtfully designed layout that perfectly balances everyday living with sophisticated entertaining.
The spacious formal living room and formal dining room set the stage for memorable gatherings, while the warm and inviting den offers the perfect retreat for quiet evenings at home. The eat-in kitchen is ideal for casual meals and morning coffee alike.
Rest easy knowing you’re covered year-round with natural gas heat, central air conditioning, and a security system, ensuring comfort and peace of mind in every season.
Step outside and discover your own private paradise. Unwind beneath the charming gazebo, host unforgettable evenings around the built-in fire pit, or simply soak in the tranquility of your beautifully appointed backyard.
19 Knoll Lane isn’t just a house — it’s the lifestyle you deserve. Don’t miss your chance to call this exceptional property home!
| Listed | June 17, 2026 |
| Days on Market | 77 |
| Last Updated | August 29, 2026 |
Full public sale/price history isn't available through our listing feed for this property.
Drag the sliders above to model your own purchase price, term, down payment, and rate — the numbers update live. For a precise breakdown, use our NYC Buyer Closing Cost Calculator and Commission Rebate Calculator.
19 Knoll Lane – For Sale
19 Knoll Lane – For Sale
Due to recent rule changes, buyer agent commissions are no longer advertised on the MLS. NestApple estimates your rebate as up to 2% of the purchase price, based on our standard commission-sharing arrangement. Prior to any showing, we will confirm the exact commission and rebate amount with the listing agent and with you in writing. Commissions are not set by law and are fully negotiable. Listing information for this property is sourced via the REBNY RLS, which does not fix, control, recommend, suggest or maintain any commission rates and/or fees for services, and is not the source of any commission information.
Closed-sale data isn't available through our current listing feed for this neighborhood.
