Apple on Monday announced a $2.5 billion plan to address the housing crisis in California, becoming the latest big tech company to devote money to a problem that local lawmakers and economists believe it helped create.

The iPhone maker’s plan includes a $1 billion investment fund for affordable housing and another $1 billion to buy mortgages. Apple also intends to make a 40-acre, $300 million property it owns in San Jose, Calif., available for new affordable housing.

Apple’s housing plan is a response to the increasing pressure Silicon Valley’s tech giants are under to play a more active role in the region’s housing crisis. As local tech companies big and small have boomed, they have flooded the region with hundreds of thousands of highly paid employees.

But the supply of housing has failed to keep pace, and prices have soared. The median home value in San Jose, Calif., is now nearly $1 million, roughly double the price from 2012, according to Zillow, the real estate site.