South Extension 1 is a prestigious residential and commercial area situated in Delhi's southern region.

The neighborhood is well-connected. The main thoroughfares in this area are Barahpulla Marg, Bheeshma Pitamah Marg, and Ring Road. South Extension Metro Station on the Delhi Metro's Pink Line and the INA Metro Station and AIIMS Metro Station on the Yellow Line serve the area. New Delhi Railway Station and Lodhi Colony Railway Station are the nearest railway stations.

Ansal Plaza and the big markets of South Extensions 1 and 2 are the closest employment hubs. Additional business areas nearby are Lajpat Nagar (4 km), Defence Colony (2 km), INA Market (2 km), and East Kidwai Nagar (1 km). The Pink and Yellow lines of the metro provide access to Connaught Place (CP), Noida, and Gurgaon, which are major employment hubs.

It is surrounded by Kotla Mubarakpur, Sewa Nagar, INA Colony, East Kidwai Nagar, Defence Colony, and South Extension 2, which offer rental homes and residential residences. It is divided into several blocks.
Providing recreational spaces there are plenty of local markets on the South Extensions 1 and 2 with numerous shopping centers.

South Extension 1's advantageous location and connectivity make it the perfect choice for office location for a lot of businesses.