Built with a significant emphasis on quality and sustainability, the European-influenced "San Souci" is offered for the first time. A world away from typical newer construction, this privately situated, custom residence is on 6.3 acres high above the historic Delaware River canal, perfectly located for walking and bicycling as well as for easy access to Princeton, Philadelphia, and train service to New York and beyond. Step inside this LEED-certified home and feel how open and light-filled the entire main living level is. Custom Andersen windows and doors galore frame views and let the sunshine in on timeless marble floors. A Canadian-built soapstone woodburning fireplace can warm the living space for hours, supplemented by the home's efficient geothermal and solar systems with hot-water radiant tubing in place beneath most of the home's floors. The open plan is flexible and smartly designed with spaces for dining, including a charming hidden breakfast nook, seating areas, a private home office, a four-season sunroom with fireplace and a stunning kitchen. Designed for the serious cook, the kitchen has storage galore with a walk-in pantry closet and custom Amish-made cabinetry, professional-grade Thermador appliances (two full-size wall ovens, warming drawer, 48" gas cooktop with powerful ventilation hood, refrigerator/freezer, dishwasher), wine chiller, built-in microwave/convection and a large island topped in a single sheet of granite, all lined in fun LED rope lighting. Whether for daily needs or special occasions, this kitchen will perform quite capably, and the cook will appreciate the views. This home has a remarkable amount of indoor-outdoor flow, including access to a deck with built-in seating and BBQ space just off the kitchen, a large corner veranda off the dining area and a patio with built-in firepit and seating off the sunroom. And that is just the first floor. The open central stairwell, where there is plenty of gallery-style wall space for art and a skylight, leads to private quarters on the second floor. An owner's suite with a large private balcony and ample space for a seating area includes a large bath with extra-deep steeping tub, oversized two-person shower and two wall-hung vanities plus three closets, including walk-in with built-ins. A second en suite bedroom with private balcony, bedroom with access to a hall bath, and fourth bedroom with a fun "a ha" entrance and its own full bath complete the upstairs. All bedrooms have hardwood floors and plenty of windows for natural light. A full laundry room with laundry chute is on the first floor and includes generous storage. The finished lower level provides a home theater with built-in sound system and tiered seating, a full gym, full bath and space ready to become your wine cellar. Utility rooms and a four-car garage complete this level. To support the LEED living environment, this home has a Honeywell air filtration system, cistern for collecting rainwater for gardening/car washing, well water treatment system, whole-house vac, plus the security and comfort provided by a whole-house generator. "San Souci" is an ideal residence for the buyer seeking a thoughtfully designed house offering privacy, home office and recreation spaces, and an ideal location just a few minutes from I-95. An additional two-acre parcel is available.