If you’re planning a home addition, garage, or even a backyard improvement in Pittsburgh, PA , you’re not alone. Suburban communities around the city — from Mt. Lebanon and Bethel Park to Cranberry Township and Fox Chapel — are seeing steady growth as families expand their homes or upgrade older properties. But before you pour a foundation or extend that fence line, it’s critical to know exactly where your property begins and ends. That’s where a property line survey comes in. A precise survey helps you stay compliant with local zoning codes, avoid costly boundary disputes, and ensure your project stays on solid legal ground. What Is a Property Line Survey? A property line survey , also known as a boundary survey , is a professional assessment of the exact legal boundaries of a property. Licensed land surveyors use field measurements, historical records, and official plats to determine where your property lines are located — and to mark them clearly on the ground or on a de...