428 Montauk Highway Historic Colonial Estate with 2 buildings located on one 1 acre of land in the heart of East Moriches Main Street Historic District. Zoned residential/commercial (duplex/multifamily), this versatile estate offers endless possibilities for living, working or investment. The main house features 4 bedrooms and 3 baths, with major updates completed in 2014, including new roof, gutters, oil burner, water heater, and full winterization. It showcases original wood flooring and timeless craftsmanship throughout. The primary suite offers a serene retreat with cathedral ceilings, a dressing room, sliding doors toa covered balcony, and a luxurious bath featuring a jacuzzi, separate shower, double vanity, and skylight. The property spans one private acre, framed by mature Leyland Cypress trees for complete privacy. Additional features include a new driveway (2022), parking with RV/boat hookups (water, electric, and separate cesspool), and room for a pool or sport court. The charming Cottage is 30 x 38.3 irreg detached frame & concrete bldg 32.5 x 31.3, according to certificate of zoning compliance with detached shed, reconstructed in the 2000's, and renovated in 2024, includes 2 bedrooms, 1 bathroom. Highlights include a modern kitchen, cathedral ceilings with skylight, separate utilities, laundry, a private fenced yard, deck, and storage shed - perfect for a rental. Enjoy the coastal lifestyle with Moriches Bay, marinas, and water sports just a short distance . Nearby attractions include Terrell River County Park, Kaeler's Pond, Soldier's Park, ocean and bay beaches, golf course, theaters, galleries, restaurants, antique shops, farmers market, wineries and both the Hamptons and The North Fork within easy reach.