5507 Northfield Rd is an expanded and updated Colonial in sought-after Greenwich Forest, Bethesda, an easy 1 mile to the Bethesda Farmers Market, less than a mile to NIH, one block to Greenwich Forest Park! The 4 bedroom and 3.5 bath home features an open concept, light-filled Kitchen and Family Room addition with vaulted ceilings, built-ins and a gas fireplace, opens to an expansive deck overlooking a fantastic backyard, great for entertaining and enjoying the outdoors. Also on the main level, an elegant Dining Room, Living Room, Powder Room, and ample closet space. The upper level features an expanded and private Owner's Suite with a renovated Owner's Bathroom with double vanity and shower as well as multiple closets. Two additional spacious bedrooms and a hall bath, and attic access (pull down) with sub-flooring, perfect for additional storage. The Lower Level of the home was expanded and features a Rec Room, walk-out Guest Suite with custom built-in Murphy Bed and a serious of custom built-ins. Also on the lower level, a full bathroom, Laundry Room, and ample storage solutions! Finally, an attached 1-car garage, a large shed with power, and many upgraded features throughout. Don't miss.