I have compiled a large part of the outskirts Madrid, and the Comunidad de Madrid, tracing, investigations etc. Now time to do work on the ground. Some issues - need the boundaries of the provinces, towns, cities and districts - I wonder if these are available? There is also a need to add tags for different administrative levels without having the boundaries (e.g. district, barrio) , and for tagging rather indefined areas of land.
The details of the schools that have ben put on the map are very useful for looking up texts on the places to correct and add details.
There are many large new housing developments around Madrid - some are not on Yahoo maps, so need visited. Often streets have been laid out, but in the current crisis of construction one cannot be sure they have actually been built without visiting!