Assistant Site Manager – Permanent Role Luxury Residential Projects – Flagship Build in Sunningdale & Surrounding Prestige Areas (Berkshire, Surrey & London Home Counties) At Castellum, we are award-winning luxury construction specialists delivering exceptional, high-end residential projects across prime locations in London, Surrey, Berkshire, and the Cotswolds. With over two decades of expertise in new builds, sensitive refurbishments, extensions, listed buildings, and sustainable retrofits, we partner closely with discerning clients, architects, and designers to create homes of lasting distinction — many under strict confidentiality. We are now seeking a proactive, highly capable Assistant Site Manager to join our experienced team on a flagship luxury residential project in the exclusive Sunningdale area. This permanent position offers genuine long-term career progression, with a strong pipeline of prestigious schemes and the opportunity to work on some of the most desirable properties in the South East. Key Responsibilities * Provide comprehensive daily support to the Site Manager, overseeing all site operations including coordination of skilled labour, specialist subcontractors, plant, and premium materials to ensure flawless programme delivery * Lead, inspire, and mentor multi-trade teams to consistently achieve the exceptional standards of craftsmanship and finish that define Castellum projects * Champ...