A Zillow Zestimate is generated by an algorithm that processes public records and broad market data. It doesn’t walk through your home, account for your recent kitchen renovation, factor in the specific street you’re on within Bridgeport, or consider whether your neighborhood is seeing more investor activity or first-time buyer demand right now. A Comparative Market Analysis, done by a licensed local agent, looks at actual recent sales of similar homes in your specific area, adjusted for condition, size, and current market conditions. In a city as varied as Bridgeport, that difference in approach can easily translate to a $50,000 to $150,000 difference in the number you’re working with.