Offer your thoughts or opinion on the input financial query or topic using your financial background.

Why do banks finance shared construction as mortgages instead of financing it directly and selling the apartments in a building?
Why should a bank get into construction specifically? Lots of business opportunities require capital. Conceivably banks could build factories, develop consumer electronics, complete with SpaceX, etc. It's all capital in, profits out, with varying levels of risk and returns. There's nothing special about constructing apartments. The reason banks don't run businesses is because there are plenty of private firms that compete with each other for business. What's the chance that a bank, with all its bureaucracy, can deliver cheaper apartments than an apartment developer? Pretty low in fact, and that's why they would rather lend to an apartment developer rather than building the apartments themselves. Banks are in the business of competing with other banks. The main work they do is to sort out good investments from poor ones. And if they can do that just a bit more efficiently than their competitors, they make big bucks. For example, it might only take a few additional hours to better vet a deal worth millions. Whereas with an apartment building, you wouldn't be able to make that amount of money per hour even if the materials and labor cost you nothing.