How do you allow road connection for houses in SimCity 4?

In SimCity 4, to allow road connection for houses, you need to ensure that the roads are properly laid out and connected to the residential zones. Use the road tool to draw roads that connect to the edges of the residential zones, ensuring that there are no gaps. Additionally, make sure the roads are accessible and have connections to other roads or highways to facilitate traffic flow. Once the roads are in place, residential buildings will develop as long as there is demand for housing and services are available.