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For older/importantant buildings it seems reasonable to record the year of construction along with the name or the architect. How to tag the date when some feature appeared? |
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I'm not to fond of the start_date tag, but I usually tag the construction years, architect and start_date anyways. This would be a building for me:
And the landuse=construction would have been tagged with:
The architect tag is a bit free form, but so is the date tags unfortunately. I also like to add websites to construction areas, which tend to be a bit free form as well. |
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Looking through the wiki it seems start_date is the most likely key to use. I also searched taginfo.openstreetmap.org for the words constructed and built, which are little used in comparison: |
