Where I live in the UK, they've converted multiple office blocks to student accommodation. They are also tearing down block of flats due to other structure issu

Where I live in the UK, they've converted multiple office blocks to student accommodation. They are also tearing down block of flats due to other structure issues. Generally it's easier to build housing on green field rather than brown sites due to contamination etc. Once you convert the office to housing, when you need office space you'll have to build it somewhere