Historic Waterfront Retreat with Development Potential. Open House Sunday, 3/23, 1-3 p.m. Welcome to 177 Surfside Ave, a historic beach cottage on multiple waterfront lots along a tidal creek connecting to the Intracoastal Waterway. Once home to Pulitzer Prize-winning author Sinclair Lewis, this early 1900s retreat features a coquina fireplace and a separate 1/1 guest house, currently a vacation rental. Zoned CHT (Commercial Highway Tourist), the property offers versatile development potential, allowing for residential, vacation rentals, boutique lodging, or mixed-use projects (pending approval). Build additional homes or expand upon this unique slice of Old Florida charm. Just steps from the beach and Vilano Beach Town Center, this property blends privacy, accessibility, and investment opportunity in one of St. Augustine's most desirable locations. Listing agent must be present for all showings. No lockbox. Buyer needs to confirm zoning & historical status if intend any other use. Conveniently located, this property is within walking and biking distance of the Vilano Beach Town Center, which offers Publix Grocery/Pharmacy, shopping, restaurants, and the Vilano Pier and Dock. Come and experience the same peaceful lifestyle enjoyed by one of America's most celebrated authors, with the added charm of a cozy, historic beach cottage and abundant natural beauty. Private Remarks: Listing agent must be present during showings. No lockbox. Sellers are licensed Realtors.