Business Details
Luxury Construction & Heritage Building Specialists in London
Castellum is a luxury construction specialist with extensive experience in high-end residential projects. Our management team combines decades of expertise in project and operational management, delivering exceptional quality through Board Director-level oversight. We specialise in new builds, agricultural conversions, and the extension and refurbishment of existing homes, including listed buildings and country estates. Our focus on sustainability and intelligent design solutions ensures each project meets the highest standards of craftsmanship. With a reputation built on collaboration, quality, and integrity, we pride ourselves on understanding client needs and exceeding expectations. Our team's deep knowledge of heritage properties and modern construction techniques allows us to tackle complex challenges with creativity and precision.Client testimonials highlight our ability to transform visions into reality, as evidenced by award-winning projects like Claridge House. We maintain strong relationships with industry partners and prioritise transparency throughout the construction process. Our commitment to excellence extends to retrofit projects, where we integrate renewable technologies without compromising aesthetic or structural integrity. Operating across London, Surrey, and the Cotswolds, we remain dedicated to delivering bespoke solutions that stand the test of time.
Services
Luxury construction
Agricultural conversions
Home extensions
Refurbishments
Sustainability consulting
Heritage restoration
Retrofit projects
Design management
Project management
Country estate development
Highlights and features
- We have over 20 years of experience in luxury residential construction.
- Projects are managed at Board Director level for exceptional oversight.
- Specialists in listed buildings and heritage property refurbishments.
- Award-winning team with proven expertise in sustainability and retrofit projects.
- Strong client testimonials highlight impeccable quality and service delivery.
What people say
Impeccable quality
Award-winning work
Team players
First on the list
Creative solutions
Services
Luxury construction
We deliver bespoke luxury residential developments with meticulous attention to detail. Our team specialises in creating timeless architectural masterpieces that combine traditional craftsmanship with modern amenities. Clients benefit from Board Director-level oversight and a collaborative approach that ensures every element meets exacting standards.
Heritage restoration
Our experts specialise in preserving historical properties while integrating modern functionality. We navigate complex planning regulations and employ traditional techniques to maintain architectural integrity. This service caters to clients seeking to restore country estates, listed buildings, and heritage sites across the UK.
Sustainability consulting
We provide expert advice on renewable energy integration and eco-friendly construction methods. Our retrofit specialists implement energy-efficient solutions that reduce environmental impact without compromising design aesthetics or structural integrity for both modern and heritage properties.
Project management
Our Board Director-led management ensures seamless coordination of all project elements. We maintain rigorous quality control throughout the construction process, managing timelines, budgets, and contractor relationships to deliver complex projects on schedule and to exceptional standards.
Agricultural conversions
We transform agricultural buildings into functional residential spaces while preserving their character. Our team handles planning permissions, structural modifications, and interior design to create unique living spaces that blend rural heritage with contemporary comfort and modern amenities.
People
Ben Jones
Founder/Director
With over 20 years in high-end residential construction, Ben leads strategic direction and client relationships. His expertise ensures quality delivery across complex projects.
Chris Wingrove
Founder/Director
Bringing 20+ years of commercial and operational experience, Chris manages large-scale projects across the UK and Europe with a focus on excellence.
Lyndon Marfell
Group Managing Director
As Group Managing Director, Lyndon oversees operations with 18 years' experience in luxury prime markets and heritage property expertise.
Jon Veale
Cotswolds Director
Jon leads Cotswolds operations with 15 years in bespoke house building and renovation, combining project management and quantity surveying expertise.
Dorcas George-Jones
Marketing Manager
Dorcas manages marketing strategy and content creation, contributing to industry publications while ensuring brand consistency across all communications.
Questions
What types of construction projects do you specialise in?
We specialise in luxury residential projects including new builds, listed building restorations, agricultural conversions, and high-end refurbishments across London, Surrey, and the Cotswolds.
Can you work on heritage or listed buildings?
Yes, we have extensive experience with listed buildings and heritage properties, employing specialist techniques to preserve historical integrity while modernising functionality.
Do you offer sustainability and retrofit services?
Yes, we provide retrofit solutions and sustainability consulting, including renewable energy integration and energy-efficient upgrades for both modern and heritage properties.
How are projects managed?
All projects receive Board Director-level oversight with dedicated management teams ensuring quality control, budget adherence, and timely completion of complex developments.
What areas do you cover?
We operate primarily in London, Surrey, and the Cotswolds, delivering projects across these regions from our strategically located offices.
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