This paper explores the evolving identity of St Antony of Padua Catholic Church in Forest Gate, East London, examining its architectural history alongside sociocultural changes of sacred spaces. Designed in Gothic Revival style by the renowned firm Pugin & Pugin, the complex was built from 1887 as a Franciscan friary. The buildings, now Grade II listed, underwent pastoral transition in 2012 when care passed to the Community of St John. Initially serving the predominantly Irish community of a rapidly changing working-class area, the parish has witnessed significant demographic shifts. Over recent decades, the emergence of communities with South-Asian heritage has reshaped its sociocultural context. Despite these changes, the church remains a focal point for the local communities. This is demonstrated through successful weekly multi-faith Novena devotions to St Antony, provision of seasonal homeless shelters, and a notable community-funded campaign to restore the original features of the sanctuary. This paper combines historical, architectural, and social analysis to examine how spatial memory, devotional activity, and collective identity interact within the church space. It draws upon site visits, community participatory workshops, questionnaire surveys, and a critical evaluation of the significance of the complex as a Gothic Revival example. Insights from the ongoing restoration project further contribute to the discussion on heritage values. By considering interactions between ritual activity, sociocultural diversity and conservation practice, the paper highlights tensions between formal heritage frameworks and lived experiences within sacred spaces. It positions these spaces as dynamic entities shaped by evolving spiritual and community engagement, influencing a sense of belonging, ownership and heritage management through change. Ultimately, it advocates for more inclusive heritage approaches that embrace both tangible and intangible values of sacred spaces.