Welcome to 15 Marion Ave, a beautifully updated 1922 seaside gem in East Norwalk's highly coveted Marvin Beach Association. Offering 4 bedrooms, 3 full baths, and 2,094 sq/ft of meticulously curated living space, this pristine residence seamlessly blends historic coastal charm with premium modern updates. Enjoy the year-round benefits of an active peninsula community surrounded by Long Island Sound and Norwalk Harbor. Relax on the classic covered front porch with sunset harbor views. Inside, warm hardwood floors and thermopane windows create a bright, airy ambiance. The inviting living room features a striking stone fireplace and custom eat-in nook, leading to a dining room with a cheerful wall of windows. The handsomely renovated kitchen boasts Viking and Sub-Zero appliances, marble counters, and a farm sink. A convenient laundry/mudroom steps out to the spacious backyard, terrace, and 1-car garage on private driveway. A versatile main-level 4th bedroom or office with a full bath (door to bath currently closed off) adds great flexibility. Upstairs, the primary suite offers water views, a walk-in closet and a well-appointed bath. Two additional bright bedrooms share an updated hall bath, plus stairway lead to the 3rd-floor playroom or office alternative. Turnkey enjoyment with fun summer gatherings at the associations very own Marvin Beach! PLEASE NOTE - Seller desires closing with post closing occupancy to the end of the year, latest. Transferable flood insurance:$2,475/yr.