Under contract-accepting backup offers. In St. Petersburg's beloved Historic Old Northeast, where brick streets meet the shimmering waters of Tampa Bay and timeless architecture tells the story of the Sunshine City's past, 646 17th Avenue NE stands as a beautiful example of classic Florida Colonial design blended seamlessly with modern livability. Just a few blocks from the waterfront park system and the gentle bay breezes that define this neighborhood, this 4-bedroom, 3.5-bath residence capture...Under contract-accepting backup offers. In St. Petersburg's beloved Historic Old Northeast, where brick streets meet the shimmering waters of Tampa Bay and timeless architecture tells the story of the Sunshine City's past, 646 17th Avenue NE stands as a beautiful example of classic Florida Colonial design blended seamlessly with modern livability. Just a few blocks from the waterfront park system and the gentle bay breezes that define this neighborhood, this 4-bedroom, 3.5-bath residence captures the essence of refined Old Northeast living.Arriving along the charming brick-lined street, framed by mature royal palms and historic homes, the setting immediately feels both elegant and welcoming. The inviting front porch sets the tone - a place where mornings begin slowly and evenings end with conversation and coastal air. The home's architecture feels grounded in tradition while thoughtfully refreshed for today.Inside, the home's character unfolds through refinished hardwood floors, the original staircase and period trim, and abundant natural light streaming through new impact-rated windows. Multiple sunrooms create warm, flexible spaces that feel connected to both the interior and the lush surroundings, offering quiet retreats for reading, working, or simply enjoying the rhythm of the day.The heart of the home is a beautiful designer kitchen, where double-stacked, leathered Carrera marble countertops, a generous island, and Thermador and Bosch appliances invite both everyday cooking and memorable gatherings. The flow between kitchen, dining, and living spaces feels natural and comfortable - refined but never formal.In the living room, a wood-burning fireplace anchors the space with warmth and authenticity, creating an atmosphere that feels equally suited for holiday gatherings or relaxed evenings at home.Upstairs, all four bedrooms provide privacy and comfort, including a serene primary suite that feels tucked away from the world while still connected to the home's historic character. The 3.5 bathrooms reflect thoughtful updates that respect the home's architectural roots.The backyard delivers the Florida lifestyle in full color. A heated saltwater pool and spa surrounded by a custom paver pool deck and tropical landscaping creates a private outdoor retreat. The 200-square-foot bonus room with full bath, attached to the two-car garage, offers flexible space for guests, a home office, or a relaxed poolside lounge.The many updates and improvements such as the newer roof and A/C, and tankless gas water heater allow you to step directly into the Old Northeast lifestyle with ease and confidence.Living here means being moments from downtown St. Petersburg, waterfront parks, coffee shops, galleries, and the vibrant energy that makes this neighborhood one of the most cherished in Tampa Bay.Homes like this don't just represent Historic Old Northeast living - they help define it.