Welcome to 45 Mariette Drive, a meticulously maintained 4-bedroom home that has been lovingly cared for by the same owner for the past 18 years. Pride of ownership is evident from the moment you arrive at this desirable property in Portsmouth's highly sought-after Maple Haven neighborhood. Enjoy the convenience of being just minutes from off-road bike paths, parks, playgrounds, and the NH Seacoast Greenway, while also having easy access to vibrant downtown Portsmouth for shopping and dining, as well as the area's stunning coastline. Inside, beautiful hardwood floors and an abundance of living space create a warm and inviting atmosphere. The main level features a spacious front-to-back living room with a gas fireplace, a separate family room with a cozy wood-burning stove, and a generously sized dining room ideal for entertaining. The home's existing 1.5 baths also offer exciting potential for future customization. With ample square footage, there are multiple possibilities for expanding the existing half bath or creating a new 3/4 bath. One option would be to add a shower to the existing main-level bath, while other configurations could be explored to suit your needs. Outside, beautiful gardens, a fenced backyard, large storage shed, and inviting patio provide plenty of space for relaxing and entertaining. With its exceptional location, generous living spaces, outdoor amenities, and potential for future expansion, 45 Mariette Drive truly checks all the boxes.