View Jefferson County New Construction available in Kentucky. Kentucky's most populous county is also one of the most popular. With Louisville at its center, Jefferson County offers residents local amenities, resources, and a plethora of other entertainment and activities. Louisville, Jeffersontown, Shively and Lyndon sit within Jefferson County, which offers potential buyers a number of diverse neighborhoods and communities to choose from when considering real estate. Jefferson County New Construction is readily available, with new homes and developments scattered throughout the county. Louisville is considered Possibility City, and Jefferson County Real Estate is full of possibilities. Contact Semonin Realtors for more information about Jefferson County New Construction and Louisville Real Estate.