ONE Atmosphere is investing Rs 500 crore to expand its luxury service apartments, aiming for 7500 keys in India and abroad over five years. This move taps into India's booming extended-stay market, driven by demand for quality, space, and hotel-like services in residential settings. The brand, part of Atmosphere Core, will launch its first property in Gurgaon in 2026, with further expansion planned across India and key international destinations.