I've spent the last couple of days trying to apply the Karlsruhe schema to a small area of Nottingham. Apart from forgetting to record on my dictaphone for a group of long streets all went well. There are plenty of interesting anomalies: odds starting with 3, missing number 13 (i.e., 11 is next to 15), gaps in numbering, extra houses (e.g., 183 and 183a), and even a range of houses with #a numbers interspersed amongst houses which had been more orderly numbered. Two long roads with most houses having names have not yet been done, and I'll have to revisit Harrow Road.
All the ways for a road need to be collected into relations at some stage as well.
Visualise with Osmarender at levels 17 or more. The rendering of house numbers lies over amenities which has meant that I've removed some to improve rendering.