Google has asked its users to become "citizen cartographers" by adding cafes, restaurants, shops and sports centres to its maps.
The Map Maker application allows contributors to edit information about places and include features such as fountains, footpaths and political boundaries.
Amateur cartographers can now draw or label features on Google Maps to create precise representations of towns and cities across the country.
The internet giant launched and tested the online tool this week at Bletchley Park, in Buckinghamshire, once the home of Britain's Second World War code breakers.
Google hopes that by drawing on local knowledge, it can improve the quality of its maps, making them "more comprehensive and accurate than ever before".
Jessica Pfund, programme manager at Google for Map Maker, said: "Now anyone across the UK can now contribute their local information to Google Maps through the Map Maker tool.
"People can edit and update anything from historic buildings, streets, agricultural land, to help to give Google Maps a refreshed and detailed level of granularity in areas from local sources."
Any additions to Google Maps will have to be reviewed and approved before they appear online.
Edits can already be made in more than 200 countries and regions across the world.
A note on the Map Maker page states: "By sharing information about the places you know, like businesses in your town or places in your school campus, you can ensure that the map accurately reflects the world around you."