Welcome Home to 57 Washington Street! Just 5 minutes to Seabrook Beach, this remodeled single family home also features a brand new, fully approved Detached Accessory Dwelling Unit - ideal for extra income, extended family, or in-law one level living! The main home has been fully renovated and is filled with natural light, featuring 2 bedrooms, 1 full bath, first-floor laundry, gleaming hardwood floors, and an inviting open-concept living area. The ADU is a newly built, single-level unit with an open concept layout, a beautiful kitchen, spacious living room, 2 generous bedrooms, a full bath, and in-unit laundry. Stainless steel appliances, granite counters, and luxury vinyl plank flooring adds style and durability throughout. Major upgrades to both the main home and ADU include new windows, a new Navien hot water/heat combination system, new 200 amp electrical and new plumbing. Centrally located in a quaint Seabrook neighborhood, between New Hampshire's Hampton Beach and Massachusetts' Salisbury Beach, this charming coastal property offers unbeatable access to year-round fun. Set on an oversized lot, this property is perfect for enjoying the Seabrook coastal lifestyle - restaurants, biking, fishing, and endless beach activities; while generating excellent rental revenue. A rare & versatile opportunity in an unbeatable location! You don't want to miss this one!