The Antilia Anomaly: Central Cooling and Ambani Sky-High Private Home

New Delhi, December 10, 2025: Mukesh and Nita Ambani’s opulent Mumbai residence, Antilia, is much more than a skyscraper; it’s an engineering marvel that defies conventional building norms. Valued at approximately ₹15,000 crore, the 27-story tower has long fascinated observers, particularly for two distinguishing features: the absence of visible outdoor air conditioning (AC) units and the Ambani family’s surprising choice to reside exclusively on the building’s highest floors.

No Outdoor AC Units: A Centralized, Preservation-Focused Cooling System

Antilia’s smooth, glass, and marble façade remains untouched by bulky external AC compressors, and this aesthetic choice is supported by a sophisticated, centralized cooling system.

• Aesthetic Preservation: The primary reason for eliminating external units was to maintain the building’s visual harmony and not disrupt the elegant, asymmetrical design envisioned by its architects.
• The Cooling Secret: Instead of dozens of split AC units, the entire building runs on a single, integrated climate control system. This system is reportedly calibrated not primarily for human comfort, but for the preservation of the mansion’s expensive interiors, particularly the rare marble, delicate indoor plants, and flowers housed within. Conventional AC air is believed by experts to potentially damage these sensitive elements.
• Non-Adjustable Temperature: Visitors to Antilia have noted a constant, cool temperature that cannot be manually adjusted for individual comfort. This set temperature is essential for the building’s maintenance and the longevity of its artistic and natural elements.

The 27th Floor: The Ambani Family’s Private Sky Residence

Despite having 27 floors—the equivalent height of a traditional 60-story building due to its soaring ceilings—the Ambani family, including Mukesh, Nita, their children, and their families, has chosen the 27th floor as their primary private residence.

• A Retreat from Chaos: The simplest, most poetic reason, as revealed by Nita Ambani, is the desire for natural light and air. At a height of 568 feet, the uppermost floor rises far above the noise, pollution, and humidity of Mumbai’s bustling Altamount Road. This elevation provides a peaceful, quiet sanctuary.
• Panoramic Views: The floor offers breathtaking, panoramic views of the Arabian Sea and the entire Mumbai skyline, a vista that improves drastically with every upward floor.
• Vastu Shastra and Light: The architectural design is deeply rooted in Vaastu Shastra, the ancient Indian system of architecture. Residing on the highest floor ensures maximum exposure to the sun’s rays and optimal natural ventilation, aligning with the principles of prosperity and harmony.
• Security and Privacy: The 27th floor and the top six floors, in general, are highly guarded, exclusively reserved for the family and their most trusted aides, ensuring a necessary layer of privacy and security befitting one of the world’s richest families.

Antilia, named after a mythical Atlantic island, truly lives up to its name, standing as a self-sufficient, ultra-luxurious landmark that perfectly blends cutting-edge engineering with the simple, timeless preference for sunlight and fresh air.