Project Manager / Senior Project Manager - Super Prime Residential

  • Castellum
  • 14/10/2026
Full time Construction Quantity Surveyor Project Manager Architect and Design Skilled Trades & Labour

Job Description

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