There are some extremely interesting startups in the real estate construction sector. There are companies manufacturing tiny homes. There are companies automating individual expensive tasks like floor layout. However, any or most of the on-site tasks in real estate construction fall under the category of "things that are difficult to automate". And we are making some progress in standardized and modular homes, but many, many homes are still unique. Americans like their cult of individuality, and that seems to find one of its greatest expressions in home purchasing. On top of that, in many markets, construction isn't the most expensive part of a home purchase so it's not the part we focus on optimizing. I live in the Bay Area where permitting can cost more and take longer than construction.