Most common:
* Terrace: This is the most common translation and refers to a raised platform, often paved, that is usually attached to a building.
* Patio: This can also be used, especially if the terrace is open-air and used for outdoor dining or relaxing.
Other possibilities:
* Rooftop: If the terrace is located on the roof of a building.
* Balcony: If the terrace is smaller and projects outwards from a building.
* Veranda: If the terrace is covered with a roof and has open sides.
The best translation for "terraza" will depend on the specific situation and the details of the terrace itself.