A Landmark Residence. A Luxury Lifestyle. An Investment That Pays You Back. A truly extraordinary riverview estate in the heart of Historic New Castle, this circa 1910 residence overlooking the Delaware River is listed on the National Register of Historic Places. Offering a rare combination of historic significance, refined luxury, and remarkable flexibility, this one-of-a-kind property enjoys panoramic water views while remaining just a short stroll from Battery Park and the boutiques, restaurants, and charm of downtown Historic New Castle. Thoughtfully and meticulously renovated, every detail reflects uncompromising craftsmanship, sophisticated design, and today's most sought-after amenities. Whether you're searching for an elegant primary residence, a multigenerational compound, or a luxury home that effortlessly offsets ownership costs through rental income, this property delivers a lifestyle few homes can offer. The owner's residence encompasses approximately 3,400 square feet across the second and third floors, offering five bedrooms, three full baths, including dual primary baths, and a half bath. Designed for both refined entertaining and everyday living, the open-concept living, dining, and chef's kitchen showcase breathtaking river views through walls of French doors that open to an expansive wraparound Southern-style porch with a screened outdoor living room. The custom kitchen is appointed with a Wolf range, Sub-Zero refrigerator, marble-topped island, bespoke cabinetry, and premium finishes throughout. A richly appointed lounge, multiple fireplaces, and beautifully curated gathering spaces create warmth and character at every turn. The first-floor garden residence spans approximately 2,200 square feet and was originally designed as part of the main home, creating an exceptional opportunity for today's buyer. Continue utilizing it as a beautifully appointed income-producing residence, currently generating a portion of the property's $4,000 per month in rental income, or seamlessly reincorporate it into the owner's residence to create an even more expansive luxury estate with over 5,600 square feet of living space. Completing the property is a detached carriage house featuring a private two-bedroom apartment above a two-car garage, providing ideal accommodations for guests, extended family, an au pair, home office, or additional rental income. Outside, the estate is every bit as impressive. Mature landscaping surrounds two of Delaware's oldest Catalpa trees, while an in-ground pool, expansive patios, lush lawns, and multiple outdoor entertaining spaces create a private sanctuary overlooking the Delaware River. Front and back driveways provide abundant off-street parking, an exceptional amenity within Historic New Castle. For the discerning buyer seeking more than simply a beautiful home, this property offers something truly rare: the opportunity to enjoy luxury living while generating meaningful passive income, create a legacy multigenerational estate, or restore one of Historic New Castle's most unique residences into a spectacular single-family waterfront home. Few properties offer this level of architectural significance, lifestyle, flexibility, and long-term value in one of Delaware's most treasured historic communities. Owners' Residence (Apt A) 5 bedrooms, 3.1 baths approx. 3400 sq ft Apt B: 2 BR, 2BA approx. 2200 sq ft Apt C: 2BR, 1BA approx. 1100 sq ft