My preference would be building=eyesore. :laughing:

(edited to add…)

After I wrote the above I decided to go looking if there was actually something better. It turns out building:architecture might be the way to go.

None of the styles given at http://wiki.openstreetmap.org/wiki/Key:building:architecture is a precise match, but the page goes on to say that Wikipedia’s Category of Architectural Styles at http://en.wikipedia.org/wiki/en:Category:Architectural_styles and List of Architectural Styles at http://en.wikipedia.org/wiki/en:List_of_architectural_styles can be used as inspiration for further values.

I had a brief look through those and couldn’t see anything as ugly as the pictures you posted. Maybe if you take a closer look you can find a match. Or maybe you could find an architect to ask what that style is called.

Then again, it’s arguable that the architecture is brutalist (or something similar) but the fact that it’s made of blocks is a matter of its construction. I don’t think there’s currently a building:construction attribute, but maybe there should be.

If you don’t get an answer, I suggest building:architecture=fugly. And adding tourism=repellent because it;'s something tourists would want to avoid seeing. :slight_smile: