How do I handle a 'Cottage flat' (England, UK)

So I’ve been slowly drawing in local houses across my area, surveying house numbers etc to add data to the map and I’ve come upon something I’ve struggling with.

In the area we’ve what get called locally as ‘Cottage Flats’ they’re normal houses (Detached/Semi Detached/Part of a Terrace) where upstairs is one property with it’s own unique address and downstairs is another.

Way History: 1562766252 | OpenStreetMap this example is creating a headache for me, Downstairs is 246 Sale Road, Upstairs is 2 Ossington Walk. How should I appropriately tag them to reflect the two different addresses of each floor, baring in mind they’ve different road names too

Presumably there are two separate doors? You can add each door as an entrance=home node on the outline, and add addr:housenumber and addr:street to each node. Then just leave the building as building=apartments with no other address info.

Yes they are two seperate doors, thanks for the help!

FWIW we have several competing tagging schemes for maisonettes[1], the one involving an apartments tags only seems to have 10 uses.


  1. Only one is documented. ↩︎

A maisonette is a different housing type from what I can see, and is not the one being described. The example here is a standard two-storey apartment building, with one flat on each floor. However, a maisonette is a “self-contained residential unit that usually occupies two floors of a larger building”[1]. One example might be a retail building that has two-storey residential units on top. Of course, it can be hard to determine the internal structure of larger residential properties, so leaving them as building=apartments avoids making assumptions.The most important part is recording the location and floor that the individual entrances are on.


  1. What is a maisonette? ↩︎