Mosques are at the heart of Muslim lives, especially in non-Muslim communities—the variety of cultures and nationalities of the immigrants determines the concept of mosques in Britain. The landscape of the mosques in Britain differs in regard to the cultural, national and denominational concepts. Most of the mosques are focused on either specific nationalities or denominations. The current article explores the ways in which mosques are situated in contemporary societies in relation to expressing Islamic and cultural identities, using Cambridge Central Mosque, which debuted in Britain in 2019 with the motto "eco-friendly", as a case study. The current research focuses primarily on examining the architectural, sustainable, and social aspects of the Cambridge Central Mosque. After engaging with the design feature of the Mosque, the article questions the meaning of 'British Mosque' in its functioning and multicultural structure. Eco-friendly mosques have been on the agenda since the beginning of Islam. There are many mosques in history. For example, Esrefoglu Mosque in Konya was built using ecological materials and has survived for 900 years. In the 21st century, the increased interest in eco-friendly buildings due to the growing rate of industrialisation and the ensuing pollution of the environment has reminded us to focus on sustainability, as it has always been a core concept in Islam and Muslim lives. Offering a good perspective on this issue, The Cambridge Central Mosque represents an overarching space for all Muslims, women, and families. It is an example of environmentally friendly, sustainable, and integrated with the social structure in the modern world.