Many addresses are still missing in OpenStreetMap, hence that might be the issue.
Can you please check if the address you are searching for is found on the website itself? If not, you can add it yourself. If it exists, file an issue with Organic Maps.
Hi,
Addresses can be really complicated. The full guide is on the wiki: https://wiki.openstreetmap.org/wiki/Addresses
Personally, I would open up JOSM, select all the buildings and slap
addr:street
andaddr:housenumber=123
on them. However, I would addaddr:unit=XYZ
on every one of them (as @Krzyzwen@feddit.de pointed out as well).Next question: does every single house have their own letterbox? Or is there one location where all the letterboxes are located? Add a https://wiki.openstreetmap.org/wiki/Tag:amenity%3Dletter_box with
addr:street
andaddr:housenumber
as well!I don't think that adding an address to the plot of land is very useful (but a name of the project/area might be nice as well). Have a look at https://wiki.openstreetmap.org/wiki/Key:place for this,
place=plot
orplace=city_block
might be appropriate depending on the situation.