 Persimmon, Barratt Developments and Berkeley offer the best opportunities for dividends within the housebuilding sector, according to broker Jefferies, with more special payouts a possibility. Persimmon already offers a copper-bottomed 8.5 yield, says the broker and going back to previous levels might see it generate a 2-year yield of 21.2 and still leave a 700m net cash position. 