You'll never find a home with an attached Guest House like this one! Welcome to 9325 Orchard Brook Drive, in sought after Fox Hills West! This unique 5 Bedroom 3.5 Bathroom property offers both charm and versatility in one of Potomac's most desirable and established neighborhoods. Located on a quiet cul-de-sac, this expanded and updated property with a ONE OF A KIND impressive, SEPARATE 2 LEVEL ADDITION/GUEST HOUSE with its own private entrance is a must see! The main house features an expanded, renovated, and beautifully designed Kitchen with 42" maple kitchen cabinets, granite countertops, recessed lighting, modern appliances, ample cabinet & counter space and a eat-in breakfast area. Open to the Kitchen, the Family Room offers the perfect place to relax, complete with built-in shelving, surround sound pre-wire, and a sliding glass door that frames views of the picturesque backyard. The formal Living Room with beautiful crown molding and the formal Dining Room both have large windows providing abundant natural light. Other main level highlights include a dedicated home OFFICE with convenient built-in bookcases and recessed lighting and a sizable powder room. The 2nd floor boasts a primary en suite bedroom/bath with a walk-in closet, and 3 additional bedrooms that share a well appointed updated full bathroom (2024). The freshly painted finished lower level provides additional versatile living space as a recreational room or home gym/flex space with generous storage space. An oversized 2 car garage leads to the mudroom and easy access to the home. Gleaming hardwoods run throughout. You will love the SEPARATE 2 LEVEL ADDITION/GUEST HOUSE with its flexible and lovely living space ideal for an au pair, guests, extended family, or multi-generational living with an additional 1 BR, 1 full BATH, full & updated kitchen, family room and a separate entrance. The unit features a wide-open, natural light-filled floor plan on the main level with a 2 story Great Room and stunning PINE floors throughout. There is a cozy gas fireplace, and double sliding glass doors with access to the backyard. The second floor boasts a large en suite bedroom with an enormous bathroom with soaking tub and an oversized walk-in closet with custom shelving. Privately situated with its own entrance & utilities, this is a RARE and valuable find offering flexibility, privacy and long-term living options. The backyard is truly an oasis! Flanked by the main house and the addition you will treasure the private, fully fenced backyard, complete with a custom designed koi pond with nighttime lighting, surrounded by mature trees & lush landscaping, an expansive flagstone patio, all perfect for outdoor gatherings or peaceful quiet evenings in. Major exterior updates include roof (2023), windows and siding (2008-2010). Enjoy 2 community parks, 2 local pools, easy access to shopping, dining and commuter routes and an active citizens association that organizes a variety of community events but no HOA. Top rated schools including walkable Cold Spring Elementary. This home offers the perfect combination of flexible, expansive living space and architectural appeal along with a super friendly neighborhood!