How to find your grid code.

Step :1 Visit the site below

Step :2 Enter postcode in the top search box.

Step :3 Press the Search button

Step :4 Scroll down the page until you view this.

Step :5 Locate the grid reference and note the first two letters i.e SP and thats your areas grid code.

Step :6 Then on the top of the page you will see all the grid code links, select yours and start searching.