Local historic districts are the most commonly used tool to protect historic structures and neighborhoods from incompatible changes, but there are other options that have become popular. One of those options is a Neighborhood Conservation Overlay District. Both a Neighborhood Conservation Overlay District and a historic district are overlay districts; however, a conservation district will typically regulate fewer features and focus more on significant character defining features, such as lot size, building height, setbacks, streetscapes and tree protection. Unlike historic districts, conservation districts rarely consider specific elements, such as windows, buildings materials, colors and decorative details. In addition, most conservation districts do not include demolition delays, a tool utilized in historic districts.