Most are built for affluent professionals rather than oligarchs, with trend raising flood concerns With their underground swimming pools, cinemas and art galleries, London’s luxury basement ...

After several failed attempts by the city and state to legalize basement apartments, Comptroller Brad Lander has a plan based on another complicated apartment-conversion law. On Tuesday, Lander ...

Easter marks the start of the home improvements season, with Londoners eager to create more space with extensions, loft conversions and basement rooms. Many have decided that staying put and improving ...