The freeview site has a postcode checker that is pretty reliable.
www.freeview.co.uk
FREEVIEW covers your area for the postcode XXNN NXX ** but you probably need a new type of aerial.
The search indicates that FREEVIEW covers your postcode but as well as an box (or integrated digital television) you probably need a new type of rooftop aerial.
Why a different aerial?
Because FREEVIEW signals in this area use a different transmitter or frequency than your existing analogue television. Unless you already have one, you need a different type of rooftop aerial for digital reception. We recommend a "wideband" aerial.