Master buildersNottingham Trent University has produced its latest group of postgraduate housebuilders - Alexander Elliott, Kierstan Boylan and Andy Walton each received an MSc in residential development. For information on the course call Marilyn Charlesworth on 0115 8482572. Persimmon buysPersimmon has bought land at seven new sites across South Yorkshire with a gross development value of more than £90 million, …