MEET THE EXPERT - DESIGN & BUILD
Interview with JOHN TURCAN & WILLIAM SONSINO Directors
020 7937 0007 | ENQUIRES@SONSINOTURCAN.CO.UK WWW.SONSINOTURCAN.CO.UK
TELL US A LITTLE ABOUT THE BACKGROUND OF YOUR COMPANY
Once the brief is defined, we collaborate closely with architects, designers and consultants to establish a clear scope, programme and budget. Transparency is central to our approach, ensuring clients understand costs, timescales and potential challenges from the outset. During construction, we maintain consistent site management, quality control and regular communication. Our goal is to make a complex process feel structured, predictable and professionally managed from start to completion. WHY SHOULD PROPERTY INVESTORS CHOOSE SONSINO TURCAN FOR THEIR RENOVATION PROJECTS? Property investors choose Sonsino Turcan because we understand the commercial realities behind development decisions. We focus not only on build quality, but on maximising value, longevity and market appeal. Our experience enables us to recommend cost-effective solutions without compromising finish or performance. We are adept at navigating planning constraints, listed building requirements and high-end specifications — key factors in prime London investments. By combining technical expertise with a pragmatic, investor-focused mindset, we help deliver properties
that perform both aesthetically and financially.
HOW HAVE CUSTOMER REQUIREMENTS CHANGED OVER THE YEARS? Clients are increasingly design-aware and informed. Expectations around sustainability, energy efficiency and intelligent space planning have grown significantly.
Sonsino Turcan was established in 2004 as a specialist construction and project management company, working predominantly across prime residential properties in London. From the outset, the business was built on a commitment to quality, craftsmanship and long-term client relationships. Over the years, we have developed a strong reputation for delivering complex refurbishments, extensions and bespoke interior projects, often within sensitive contexts such as listed buildings and prestigious estates. Experience working with estates including Grosvenor, Cadogan and the Crown has shaped a disciplined, detail-driven approach that carefully balances heritage, design intent and modern living requirements. Today, Sonsino Turcan operates as a hands-on, experienced team, combining traditional building knowledge with contemporary construction methods and professional project management. WHAT IS YOUR CUSTOMER PROCESS? Our process begins with listening. We take time to understand our clients’ objectives — whether homeowners or investors — and assess how best to add value through careful planning and design coordination.
There is also greater emphasis on flexibility, as homes must
accommodate modern lifestyles and long-term adaptability. For investors, scrutiny around compliance, durability and future-proofing has intensified. These changes reinforce the importance of early collaboration,
detailed planning and clear communication throughout each project.
WHAT ASPECT OF YOUR WORK DO YOU MOST ENJOY? The most rewarding aspect of our work is transforming properties in ways that enhance how people live or how assets perform. Seeing complex projects come together — particularly where heritage and modern construction
intersect — is highly satisfying. We also value the long-term
relationships we build. Many projects arise from repeat clients and referrals, reflecting the trust placed in our approach and the pride we take in every commission.
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