Welcome to 4 Lost Brook Trail in Walpole - an exceptional 5BR, 3BA Colonial built in 2020 on 2.94 private acres abutting conservation land. With 5800 sq ft, this home impresses with a soaring foyer, custom millwork, and abundant light. The gourmet kitchen offers a large 8 1/2 foot island, high-end Wolf appliances, 42" Sub-Zero fridge, walk-in pantry, and breakfast nook opening to a step-down cathedral family room with fireplace. Formal dining with bay window and an elegant living room provide ideal entertaining. The primary suite boasts a tray ceiling, spa bath with soaking tub, glass shower, dual vanities, and walk-in closet. Three additional bedrooms plus a bonus room add flexibility. The finished basement with bar and movie theatre elevates recreation. Outdoors, enjoy an expansive 50'x56' patio with built-in hot tub, firepit, and pergola. Nestled in North Walpole's premier enclave near schools, parks, shopping, and major routes, this rare offering is complete with a three-car garage.