Business Details
50+ Years
experience
Your Trusted Property Development & Bridging Loan Experts in London
Established in 1965, we are a privately owned property development and investment company with a legacy of creating value through strategic acquisitions and innovative redevelopment. Our Directors bring over 75 years of combined industry experience, having successfully navigated evolving markets while maintaining a focus on residential planning approvals and conversions. In recent years, we expanded our expertise into specialist property lending, offering bridging finance for residential, commercial, and mixed-use projects.Our approach combines deep market knowledge with flexible partnerships, enabling us to deliver tailored solutions for property owners, agents, and borrowers. With immediate cash funding available and a commitment to swift decision-making, we prioritise projects that align with our vision for sustainable growth and community impact. Our portfolio spans London and the South East, where we continue to build on decades of experience in transforming underutilised assets into valuable properties.
Services
Property Acquisition
Residential Planning Consent
Bridging Finance
Commercial Redevelopment
Mixed-Use Conversions
Agent Partnerships
Portfolio Financing
Case Study Consultation
Joint Ventures
Exit Strategy Planning
Details
- Year established: 1965
Highlights and features
- We offer 50+ years of property development expertise
- Our team secures residential planning approvals with proven success
- We provide rapid acquisition decisions up to 4 million
- We offer flexible joint venture partnerships for property owners
- Our bridging loans combine developer insight with flexible terms
Services
Property Development
We acquire commercial and residential properties for redevelopment through strategic planning approvals. Our expertise includes residential conversions, mixed-use transformations, and value enhancement. With immediate funding available, we specialise in projects up to 4 million across London and the South East.
Bridging Finance
Specialist bridging loans for property transactions with flexible terms from 3-18 months. We offer first and second charge options at competitive rates, focusing on residential, commercial, and refurbishment projects across England with particular expertise in the South East region.
Planning Consultation
Expert guidance on residential planning permissions and commercial-to-residential conversions. Our team leverages decades of experience securing approvals, including complex cases requiring appeals and flood risk assessments for challenging sites across London and surrounding counties.
Agent Partnerships
We collaborate with property agents and introducers through profit-sharing arrangements. Our flexible partnership model allows agents to maintain equity stakes in projects while we provide full transaction funding and development expertise to maximise returns.
Joint Ventures
Customised joint venture agreements for property owners seeking to share in redevelopment profits. We provide acquisition funding and development management while working closely with owners to create mutually beneficial exit strategies and financial outcomes.
People
Howard Lask
Director
With decades of property development experience, Howard Lask co-leads Castlestone's strategic direction. His expertise in identifying value-adding opportunities and managing complex redevelopment projects has been instrumental in establishing the company's market leadership.
Sean Lask
Director
Sean Lask brings extensive industry knowledge to Castlestone's operations, specialising in bridging finance and property acquisitions. His commercial acumen and understanding of market dynamics help drive the company's successful investment decisions and lending strategies.
Questions
What property types do you develop?
We focus on residential, commercial, and mixed-use properties across London and the South East, specialising in conversions and redevelopment projects that benefit from planning enhancements.
What loan sizes do you offer?
Our bridging loans range from £100,000 to £350,000 with flexible terms between 3-18 months, secured against residential, commercial, or mixed-use properties.
How quickly can you complete acquisitions?
We make rapid decisions and complete purchases swiftly, often working to sellers' timescales thanks to our immediate cash funding availability and streamlined processes.
Do you work with property agents?
Yes, we offer agent partnerships with profit-sharing arrangements, providing full transaction funding while allowing agents to maintain equity stakes in successful projects.
What planning expertise do you have?
Our team specialises in securing residential planning consents, including complex cases requiring appeals and flood risk assessments, with a proven track record of successful applications.
