Move -in Ready Ranch with Legal Accessory Dwelling Unit (ADU)- Endless possibiities in Merrimack! Welcome to 1 Wallace Rd., a beautifully updated ranch offering flexible living in a fantastic Merrimack location. This 3 bedroom, 1 bath home features a legal accessory dwelling unit (ADU) with it's own bedroom , full bath and kitchen- ideal for multi-generational living, rental income or an in-law suite. Over the past 4 years the owners have completed a comprehensive list of updates, giving you true peace of mind: new roof, new furnace, new hot water tank, updated electrical, updated plumbing, new siding, renovated kitchen and baths, and new flooring throughout. Major systems and cosmetics are done- just move in and enjoy! The main living area offers a comfortable functional layout, while the attached space with its own kitchen provides privacy and independence for extended families or tenants. A 1-car garage adds convenient storage and parking, and the single-level ranch design offers easy, low-maintenance living. Don't miss this rare opportunity to own a turn-key home with built-in flexibility! Showings to start after 3 on Friday 8/14.