This place is within an indoor alley connecting 2 streets so the property address is often not recognized by uber or google maps.
Best way is to put the following address on uber/taxi or google maps and it should bring you to a large medival doored entrance of the indoor alley. The actual entrance to the flat is just a few steps from the alley entrance.
Addresable/mappable point:
Calle de la Tres Cruces, 4, Madrid.
Noelia and her husband Cesar were wonderful hosts. They took the effort to walk me into the apartment and oriented me with all of the amenities. There was a complementary wine bottle for guests. Kitchen is small but functional with all possible continental items, utensils and a washer. There are generally no dryers in Spain but I didn't have to use w/d anyways.
Fantastic hosts and I will not hesitate to visit them again with family in future.