3-bedroom, 2-full-bath, 1-half-bath detached Colonial in Abingdon's Woodland Run with over 2,400 square feet above grade, a full basement, and a 2-car front-entry garage. This well-kept home offers a spacious three-level layout and a classic floor plan designed for comfortable everyday living, with generous room sizes, inviting gathering spaces, and a gas fireplace that adds warmth and character to the main living area. The main level flows well for both daily routines and entertaining, with flexible living space, a convenient half bath, and a layout that easily supports work-from-home needs. Upstairs, all three bedrooms and two full baths are thoughtfully positioned together for privacy, including a primary suite with its own full bath. The full unfinished basement adds valuable space for storage now and future potential for recreation, fitness, hobbies, or additional finished living area. Located in Woodland Run, this detached home offers a convenient Abingdon location near shopping, dining, parks, Bel Air, and major commuter routes including Route 24 and I-95. For buyers seeking a traditional Colonial with space to grow, a functional layout, and a strong Harford County location, 3137 Birch Brook Lane presents an excellent opportunity.