Assuming the infrastructure is there to support it. Developers are more than happy to pass costs onto the government/taxpayer while keeping the profit, such as by building enormous neighborhoods with a single access road or in high risk flood zones. My brother's neighborhood is right now dealing with a developer who is building a 500-unit housing project whose only entrance and exist is the two lane road in front of his house. They'd have direct access to the highway except for the fact they're too cheap to bridge a five foot wide creek.