Dubai office blocks with multiple owners could be worth 40% less than similar buildings with single ownership in the emirate and Abu Dhabi, brokers say.

Most of the new office blocks being built in Dubai have been sold by the floor, and in some cases have dozens of owners.

That is making selling them to institutional investors almost impossible, property consultants in the emirate say.

'One hundred per cent of the inquiries we have are looking for single-ownership buildings,' said Nicholas Maclean, the managing director of CB Richard Ellis.

The National