Unique Opportunity in Prime Walnut Creek Location - Large, flat, .39 acre lot with dual Access! Additional Access off the neighboring coveted Larkey Lane. Welcome to 503 Coralie Lane, a charming home on an oversized lot in the heart of Walnut Creek. What truly sets this property apart is its expansive backyard, which extends all the way to Larkey Lane-offering rare dual-street access and endless potential. Whether you're looking to subdivide, build a spacious ADU, or simply create a private retreat, this lot delivers unmatched flexibility. With easy, direct, access an ADU could have its own private entrance, ideal for guests, extended family, or rental income-while the main residence maintains total privacy on Coralie. This is a rare chance to own a property with both future development value and current charm. Just minutes from parks, shopping, BART, and top-rated schools. Don't miss this one-of-a-kind property with room to grow, invest, or create your dream backyard oasis.