Discover timeless charm and versatile living in this beautifully maintained Mid-Century Modern home nestled in the heart of Portland’s Concordia neighborhood. Located on a designated bike street and just steps from cafes, parks, and shops, this home offers the perfect balance of comfort, style, and walkable convenience. Nearby greenspaces abound including Fernhill and Alberta parks, Faubion school playground, and U of O Portland campus. The main level features high ceilings, skylights, and hardwood floors that flood the space with natural light. The living room invites relaxation with a cozy gas fireplace, while the separate family room features a wood-burning fireplace—ideal for gatherings or quiet evenings. A dedicated dining room opens to a private patio through sliding glass doors, seamlessly blending indoor and outdoor living. Three spacious bedrooms, a full bathroom, and a half bath offer comfortable accommodations, complemented by a laundry room and ample storage throughout.The attached two-car garage and private driveway provide coveted off-street parking, a rare find in this desirable urban location. Mature landscaping surrounds the property, offering beauty and privacy in every season.Downstairs, a fully permitted ADU expands your possibilities. With a bright, open floor plan, this space includes a full kitchen, two bedrooms, a walk-in shower bathroom, its own laundry/utility room, a bonus room, and a separate entrance—ideal for multigenerational living, rental income, or guest quarters.Don’t miss this unique opportunity to own a spacious, light-filled home with flexible living space in one of Portland’s most sought-after neighborhoods. Welcome to 6310 NE 31st Avenue—where classic style meets modern function.