One or more photo(s) has been virtually staged. Welcome to 800 18th Avenue N, a historic 1925 Colonial pool home for sale in Crescent Lake, one of the most desirable, walkable, and tree-lined neighborhoods in Downtown St. Petersburg, Florida—a rare offering that blends timeless 1920s architectural character with meaningful modern upgrades and income-producing guest apartments, all set on a lush, landscaped corner lot just steps from Crescent Lake Park and approximately a 15-minute walk to vibrant Downtown St. Pete and the iconic St. Pete Pier. This distinctive property features a 3-bedroom, 2-bathroom main residence plus two private one-bedroom guest apartments above and below the detached garage—an exceptionally rare configuration in Crescent Lake real estate, ideal for multigenerational living, Airbnb or long-term rental income, extended guests, or a private home office retreat. Inside the main home, authentic 1920s craftsmanship shines through a gracious living room with decorative fireplace, built-in bookshelves, exposed beamed ceilings, and engineered hardwood flooring, while a sun-drenched downstairs sunroom offers the perfect reading lounge or remote workspace, and the spacious dining room with built-in corner hutch is made for entertaining; the updated chef's kitchen showcases granite countertops, stainless steel appliances, breakfast bar seating, pantry storage, and warm hardwood flooring. Upstairs, original pine hardwood floors flow through the hallway and generously sized bedrooms filled with natural light, and the primary suite features a walk-in closet plus an adjoining sunroom with closet—perfect as a home office, nursery, fitness room, or future third-bath conversion. Step outside to your own private backyard oasis featuring a heated saltwater pool with elegant travertine decking (installed 2017), a spacious entertaining deck flowing from the dining room, a covered pergola for shaded gatherings, and a separate fenced area ideal for kayaks, paddleboards, or a dedicated dog run—purpose-built for the active Florida lifestyle. The detached one-car garage houses two fully independent guest apartments with a private screened porch upstairs, all enclosed by a vinyl privacy fence surrounding the pool and guest quarters for maximum security and seclusion. Major capital improvements deliver true peace of mind, including a new roof (September 2024), HVAC systems replaced (2021), and a new hot water heater (2025), while additional highlights include a corner lot with mature landscaping and lighted palms, a travertine walkway with exceptional curb appeal, easy access to I-275, Tampa International Airport, St. Pete–Clearwater International Airport, and world-famous Gulf Coast beaches, and—most importantly—NO flood insurance required. Lifestyle is what truly sets this home apart: walk to neighborhood coffee shops, acclaimed restaurants, and craft breweries, enjoy pickleball and tennis at Crescent Lake Park, and stroll to the Downtown St. Pete waterfront—few neighborhoods in Pinellas County offer this rare combination of urban walkability, historic charm, and tree-lined residential beauty. If you've been searching for a historic St. Petersburg pool home, a Crescent Lake property with a guest house, or an income-producing investment property near Downtown St. Pete, this is a truly rare opportunity to own one of the neighborhood's most captivating and distinctive residences—schedule your private showing today and experience the Crescent Lake lifestyle firsthand.