
At SDA Site Investigation LTD, we provide accurate and reliable land survey services for both domestic and commercial clients. A land survey is a vital first step before any building or development project, giving you clear insight into the boundaries, levels, and ground conditions of your site.
Whether you’re planning a small extension at home or overseeing a large-scale commercial build, our surveys give you the confidence to move forward with accurate data and professional advice.






Every successful project begins with a solid understanding of the land it’s built on. A professional land survey helps to:
By starting with an accurate survey, you avoid costly errors, disputes, and delays later in the project.
We combine specialist knowledge with modern surveying techniques to provide results that are both accurate and easy to understand. Our team works with builders, developers, and homeowners, tailoring every survey to the unique requirements of your site.
We’re committed to providing information you can trust — enabling confident decision-making from the very beginning of your project.
For homeowners, a land survey ensures that your extension, renovation, or landscaping project is based on accurate property boundaries and ground levels. This helps to prevent disputes and gives your architect the reliable data they need.
For developers and contractors, we deliver large-scale surveys that provide the critical data needed for safe and compliant construction. From property developments to infrastructure works, we’re trusted by commercial clients across Kent, London, Surrey, Sussex, and the South East.
When you work with us, you can be confident your project begins with the highest levels of accuracy and professionalism.
If you’re planning a project and need a professional land survey in Kent, London, or the South East, our friendly team is here to help.
We’ll provide expert advice, a clear quotation, and the reliable service your project deserves.
Excellent service from start to finish. The team explained everything clearly and provided detailed reports we could act on immediately. Wouldn’t hesitate to use them again.
We use SDA Site Investigation LTD for all our commercial developments. Their land surveys are precise, reliable, and always delivered on time. A truly trustworthy partner.
SDA Site Investigation LTD made our planning process so much easier. Their team was professional, clear, and delivered the survey quickly. Highly recommend for anyone needing accurate land surveys!
Ready to discuss your project? Our friendly team is here to help. We’ll provide expert advice, clear solutions, and a free, no-obligation quote tailored to your needs.
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