This document discusses how civic technology and open data can help cities make better data-driven decisions. It presents LocalData, a startup that develops mobile and web apps to help governments and communities collect data. LocalData has conducted surveys in Detroit, Gary, and other cities to gather information on vacant and abandoned properties to help with issues like rightsizing. The platform allows custom surveys, real-time mapping and analysis of data, and engages citizens. LocalData aims to give cities more accurate and timely data to address challenges in areas such as development, transportation, and supply chains.