Opportunity housing helps create homes of all shapes and sizes, integrated into communities, and more affordable for working families, seniors, or young families. What is opportunity housing? It’s San Jose’s unique term for allowing duplexes, triplexes, and fourplexes across all our city’s neighborhoods. Once common in San Jose, these homes have been prohibited over the last few decades, even as we have faced a shortage of new homes and rising housing costs, pricing more families out of the city. Opportunity Housing typically creates more affordable housing by design since units are usually smaller than a single-family home.