By Tom Goodall Brent Cross is London’s newest park town. Its proximity to London has been crucial to making it a success, writes Tom Goodall Although the concept is coming to define the new government – in housing policy at least –the definition of a new town is not totally clear. Indeed, so nebulous is the phrase as it stands that the government itself has assigned the act of defining them to an assembled taskforce, which held its first meeting last week in Milton Keynes (the archetypal postwar New Town). Questions abound. Where will the new towns be built? Brownfield land will be prioritised…