For Colouring London to be able to map the data you donate, and for you to be able see your building or buildings colour, we have to be able to access up-to-date information on the location and 'footprint' of every building in London. 

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These footprints act as mini filing cabinets, storing, locating and visualising

contributed data. Permission has been given by Ordnance Survey, to University College London, to use OSMasterMap footprints (OSMM) for London for this specific purpose. A separate agreement has also had to be set up with The Greater London Authority's to allow UCL to use its OSMM data.

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Though we can visualise spatial data, and offer downloads, current OS copyright restrictions mean that, we cannot, at the moment, release footprint geometries derived from OSMM. From 2020 however we have been allowed to map UPRNS to provide spatial location.  Once made fully open open, address and geometry datasets will allow everyone - not just universities, local authorities and others holding OS licences-, to easily map Colouring London data, and other spatial datasets themselves, and will bring the UK in line with many other countries. 

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Out data is also being linked to Open Street Map  to  OSM building ID's and lat/long data. The greater the number of location categories filled on our map, including building address, lat/long, OSMM UPRN and TOID, and OSM subcategories,  the darker the buildings  become to you allow you to see easily where more data are required.