Unmatched Gulf-Front Opportunity on Sanibel's Gold Coast: The most substantial remaining residential parcel on the coveted Gold Coast of West Gulf Drive, this exceptional Gulf-front property offers an impressive 224 feet of direct frontage along the Gulf of Mexico and a massive 43,503± sq. ft. development envelope. Lush, mature vegetation enhances privacy while preserving the natural beauty of Sanibel Island. Zoned Ecological Zone E-2 (Gulf Beach Ridge), the property allows 25% impervious coverage and 30% total developed area, providing rare flexibility to create a magnificent Gulf-front estate or private family compound. Unparalleled views of the Gulf's azure waters and breathtaking sunsets await. An extraordinary opportunity exists to combine this parcel with the adjacent property at 3507 W. Gulf Drive, adding an additional 106 feet of Gulf frontage for a truly one-of-a-kind estate. 3517 West Gulf has been combined and may be re-subdivided if desired. Survey available. Harness one of the final opportunities on Sanibel Island to develop an iconic Gulf-front residence with supreme privacy at an exceptional scale. 3517 is over 3.3 acres and also has significant depth.