The way this listing appears in all/most of the info is misleading/insufficient. For example, the map does not even show Calle Ayala. Then the address is show as "Calle Ayala 13B". For us, and several guests before us, this address took us to Calle Ayala 13, whereas it should be Calle Ayala 1 (one), NOT 13. The 3 refers to floor # 3 in a building at street/municipal # 1. Fortunately the real owner of apt. B, floor 3, at calle Ayala 13 was home, she understood the mistakes in the listing address and directed us to the correct building # at calle Ayala 1 (ONE). The apt. was high quality, conveniently located close to bus/train station.