While most of us are grabbing a sandwich on our lunch breaks, Tim Vivian checks on his 150,000 bees on the roof of the city centre building where he works.

The 55-year-old computer programmer installed three hives on the roof of The Custard Factory in Digbeth, Birmingham, after getting the go-ahead from his employer.

His "Brummie bees" now produce 150 jars of honey a year.

Customers include a hotel and he is also in talks with a brewery which wants to start making honey beer.

Video journalist: Louise Brierley