Transforming the top floor of an old Victorian warehouse into a chic loft apartment was never going to be simple. Here’s how one couple created their dream city space, with a Chelsea winner-designed garden terrace.  New York-style lofts with exposed brick walls, iron columns and big windows are a film-maker’s fantasy and so romantic. But the reality of living in a huge, draughty space soon kicks in for couples or a family. There’s no storage, there have got to be walls for the loo, bathroom and at least one bedroom. And where do the washing machine and ironing board go? Andy and Dorys Lewis love lofts. They grasp the need to balance space against comfort, and to build in the flexibility to divide a loft into private rooms — and reopen them easily and smoothly, keeping that distinctive warehouse feel. With the help of skilled architects the couple transformed the huge top floor of an old Victorian warehouse complex in Shoreditch, where uniforms were made in the Second World War. Andy and Dorys Lewis wanted a loft apartment with the flexibility to divide it into private rooms, then reopen them easily and smoothly – keeping that distinctive warehouse feel. With the help...