Eagle Rock Apartments at North Plainfield Welcome to Eagle Rock Apartments at North Plainfield, formerly known as Northwood Apartments. This is the home you've been looking for. Our beautifully renovated one and two bedroom apartments have everything you need to live comfortably in North Plainfield, New Jersey, including spacious open floor plans, convenient community amenities, and a fabulous location near Washington Rock State Park. At Eagle Rock Apartments at North Plainfield, you'll also have fast access to nearby cities, including Elizabeth, Newark, Edison, and New York City.