3 April – Times House is officially opened, serving as the operation headquarters of Singapore's newspapers.[4]
May
13 May – The third Merdeka Talks took place, which concluded with the same agreement from 1957.[5]
July
1 July – The Legal Aid Bureau is created to assist the need with legal matters.[6]
August
1 August – Royal assent was given to the State of Singapore Act 1958, providing for internal self-government for Singapore
8 August – The Master Plan, which was intended to guide Singapore's development over a two-decade period, is approved by the Singapore government and comes into force.[7]
9 August – The first air-conditioned supermarket, Fitzpatrick's Supermarket is officially opened. Since then, the area has been taken over by The Paragon.[8][9]
November
22 November – The Shaw House, a 10-storey office block, is officially opened by then Chief Minister Lim Yew Hock.[10]
24 November – The Syariah Court is established to tighten divorce processes and safeguard marriages.[11]
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