Kanchanjunga is a condominium of 32 luxury apartments of three to six bedrooms each. The building is 28 storeys (85 metres) high and square in plan: 21 meters x 21 meters. The basic interlock is that of a three and four bedroom apartment with the larger flats formed by the addition of another half level. The structure is built around a central service core which was constructed first. Each of the flats have large usable garden-terraces which have dramatic city views. In section, there is a continuous variation of internal spaces best expressed as shear walls on the north and south elevations of the building.
The Bombay climate and location present architects with a contradictory situation: the east-west axis affords the best views (of the Arabian sea to the west and the harbour to the east) and catches all the sea breezes, but also brings into the buildings the hot afternoon sun and the hard monsoon rains. Correa decided to use the organisation of a bungalow of wrapping around the main living spaces a protective verandah. He developed this idea further when he realised that "another interesting variation on the principle of the bungalow is to tum the verandah or buffer zone into a garden which not only protects the living areas from the sun and rain but actually thrives on them ". Combining climatic considerations with that of views he settled upon a configuration of interlocking units which faced east and west.