Balcony / 阳台

An elevated outdoor platform attached to the apartment.
Terrace / Patio / 露台 / 庭院

Larger hard-surfaced outdoor area, typically on the ground floor or rooftop.
Private Garden / 私家花园

Private outdoor area with natural landscaping, such as grass, soil, trees or planting. Patios and wooden decks should be selected as Terrace, not Private Garden.