Melbourne rooftops abuzz with bees.

It's a growing trend - city rooftops becoming to home to hard working busy bees with restaurants emerging as amongst the most enthusiastic roof owners wanting to get involved.

In Melbourne the city council has just given a a $28,000 grant to a beekeeping company to allow it to double the number of beehive sites on the city's rooftops.

Meanwhile, in Sydney restaurateurs like James Hird at Woollahra's Buzo restaurant are also getting busy installing hives on their roofs.

In Melbourne the Melbourne City Rooftop Honey - which is the recipient of the council grant - has a waiting list of 270 residents and businesses who want bees on their roofs, including Federation Square, restaurants and galleries.

The organisation of beekeepers which has a vision to bring bees back to the city and the suburbs of Melbourne already has 30 sites with 42 hives in Melbourne and up to 20 new sites are planned for the city centre in the next year.

Melbourne City Rooftop owners Vanessa Kwiatkowski and Mat Lumalasi said they wanted to create a different batch of honey for each suburb in Melbourne, with each having its own distinct flavour.

Mr Lumalasi said restaurateurs were the people most likely to "take the time to get involved and embrace it"'.