Developments has been ongoing out of the city border long before it as Petaling Jaya was made a new township just beside Kuala Lumpur, converted from Effingham rubber estate on 1952 to accommodate the growing population of the capital and road infrastructures like newly opened Jalan Klang Lama spurs the growth of towns around the original Klang Valley corridor areas.

Batu Caves and Kajang, both situated just north and south of the city border also already served as feeder towns of the capital.

Big infrastructure projects such as the new Federal Highway has been planned to ensure straightforward flow of products between the capital and the port.

With the nation moves into large scale industrialization, more township around the capital starts to emerge, grow and expands.

While most of it runs parallel to the existing Federal Route 1, the first section in the area, Kuala Lumpur–Seremban Expressway section includes the new townships of Seri Kembangan and Bandar Baru Bangi instead as route to Seremban and provides more straightforward access between the federal capital and the Negeri Sembilan state capital, providing development potentials on involved areas.

At the same time, a bypass road from Sungai Rasau was built to help diverting traffic to the main port area from Federal Highway named North Klang Straits Bypass, the first privately operated toll road in the Klang Valley area.

The airport was originally mooted to be somewhere around Hulu Selangor and the administrative center was mooted to be in Janda Baik, Bentong, Pahang, but ultimately the airport is chosen to be in Sepang and the new administrative center is in Prang Besar Estate, where later the location is named Putrajaya.

Port Klang expands their activity by establishing a new cargo terminal in Pulau Indah, which later called Westport.

The lack of introduction and promotion of the term in the national language (Malay) also made it fall out of favor from general public usage.

Mont Kiara, TTDI, Damansara Heights) Sentul, Batu and Titiwangsa Setapak/Wangsa Maju Setiawangsa and Ampang Hilir Lembah Pantai, Mid Valley City and Bangsar Jalan Klang Lama and OUG Bandar Tasik Selatan and Salak South Sri Petaling Bukit Jalil and Sungai Besi Beranang (Eco Majestic) BrogaHulu Langat town Sunway Pyramid Puchong and Bandar Kinrara Seri Kembangan Batu Tiga(partial) Meru Pulau IndahPulau Ketam Sungai Buloh incl.