14/10/2026
Full time
Castellum is a privately-owned, award-winning principal contractor specialising in the construction, refurbishment and fit-out of London s finest private residences and luxury apartments. Founded in 2003, we deliver exceptional homes for discerning clients, architects and consultants, with a reputation built on uncompromising craftsmanship, complex structural work and the highest possible specification. Our projects typically involve landmark new-build townhouses and apartments, major basement extensions, lateral conversions, heritage and listed building refurbishments, and multi-level structural transformations in some of the capital s most exclusive postcodes. We operate with complete discretion and manage every project at Board Director level. We offer both traditional Main Contracting and turnkey Design & Build solutions, supported by in-house design and commercial teams. Castellum is a growing, well-funded business with a strong long-term pipeline of super-prime residential work across London and the South. The Role We are seeking an experienced Project Manager or Senior Project Manager to take full ownership of high-value super-prime residential projects from pre-construction through to handover and defects. You will lead the successful delivery of technically complex, high-specification schemes, working closely with ultra-high-net-worth clients, family offices, leading architects and specialist consultants. Key Responsibilities Full responsibility for the successful delivery of super-prime residential projects Manage the complete project lifecycle programming, procurement, cost control, quality, health & safety and stakeholder liaison Lead and mentor site-based teams and direct labour Collaborate closely with in-house designers, quantity surveyors and the senior leadership team Report directly to a Director Maintain exceptional client relationships with UHNW individuals and their professional teams About You Proven track record delivering super-prime or high-end prime residential projects in Central London (essential) Experience with a recognised main contractor or specialist high-end residential builder Strong technical knowledge of complex basements, structural alterations, historic/listed buildings and super-prime finishes Excellent client-facing and communication skills Formal construction-related qualification (degree, HND or HNC) Stability and longevity on previous projects highly regarded What We Offer Opportunity to work on some of London s most exclusive private residences Long-term career progression within a growing, well-funded business Highly competitive salary package (negotiable) + bonus scheme Comprehensive benefits package Direct reporting line to Director level and genuine influence on high-profile projects If you have the experience and ambition to deliver exceptional super-prime residential projects with Castellum, we would like to hear from you. Apply with your CV today