The survey area for Peterborough Buildings in Need can be found here. This is an embedded Google Map and a really useful tool for tracking which buildings in which area have been surveyed and which have not.
To create your own Google Map you will need to log into Google. If you have a Gmail account you can use this but you can also create a non email Google account with your work email and a password. This allows you to create maps and save them so that you can find the information easily or share it with others.
Google has a helpful guide to getting started here. This will take you through the process of starting a map. You can create a new map of places, or use the line tool to draw on routes or around individual buildings.