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Osmond Lange was established in 1929 and is one of the larger architectural and interior design practices in South Africa, with offices in Johannesburg, Durban, East London and Cape Town. The company has built up extensive design and technological expertise specialising in large projects and has actively participated in some of the largest joint ventures in South Africa as lead consultants. The practice blends architecture, interior and urban design and project management skills to deliver an integrated package of professional services to its clients. Osmond Lange has undertaken work across various sectors, including commercial offices, residential, retail, industrial, education, and healthcare.


Osmond Lange Architects South Africa (Pty) Ltd is a new entity established in 2018 within the OL/Ikemeleng group of companies with a specific focus on projects and clients located within South Africa. The company shares the same Executive Management team and draws upon the same pool of staff and technical resources as the other Group entities.


6 Directors  |  Number of Staff: 80+  |  Five Offices in South Africa  |  Associated Offices in Ghana, Kenya, Mauritius, Namibia & Zimbabwe  



Osmond Lange Architects is a Level 2 Contributor to Broad-Based Black Economic Empowerment with 51% Black Ownership, measured in terms of the Broad-Based Black Economic Empowerment Act (53/2003) of the Republic of South Africa. 


Osmond Lange is amongst the leading proponents of sustainable design. One of our recent projects, 40 on Oak at Melrose Arch, was the first Multi-Unit Residential building to achieve a 4-Star Green Star Rating. Several of our team members are Green Star Accredited Professionals.  


Osmond Lange Architects South Africa (Pty) Ltd operates an ISO9001 certified Quality Management System.

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