Set on a 0.51-acre corner lot in Scarborough's coveted Pleasant Hill neighborhood, 3 Mast Road offers more than 4,000 square feet of thoughtfully updated living space, exceptional indoor-outdoor amenities, and convenient access to downtown Portland and southern Maine beaches. This four-bedroom, four-bath home with attached two-car garage has undergone extensive improvements inside and out. The renovated kitchen features a large center island, marble countertops, newer LG stainless steel appliances, walk-in pantry, and space for a full dining table. A separate formal dining room provides an elegant setting for larger gatherings. Hardwood floors span the first floor, while custom built-in bookcases and a breezeway hall tree add warmth, function, and architectural character. The inviting den is anchored by a newer Harman pellet stove insert. Upstairs, the spacious primary suite features hardwood floors, two custom walk-in closets, and a renovated bath with an oversized tiled shower and impressive 10-foot solid-wood double vanity. The guest bath is also well appointed with a tiled shower and double vanity. Additional finished spaces offer excellent flexibility, including a room above the garage and a finished lower level with a large L-shaped live-edge bar and half bath. A Trex deck flows into an enclosed screenhouse finished in white pine and Douglas fir, creating an exceptional three-season entertaining space overlooking the private, fully fenced backyard. Recent improvements include fresh exterior paint, a newly paved driveway, heat pumps for efficient heating and cooling, and a whole-house generator. Approximately 15 minutes from downtown Portland and 5 minutes from Higgins Beach, 3 Mast Road combines exceptional space, extensive updates, indoor-outdoor living, and the best of coastal Maine in a highly desirable Scarborough neighborhood.