Chartered Land Surveyor for precise measurements using 3D scanning and drone technology
As a chartered land surveyor, TOPO4D combines traditional land surveying with advanced measurement technology for accurate surveys of terrain, buildings, and infrastructure. From the ground to the sky.
- Innovative technology with proven precision
- Multidisciplinary approach with a single point of contact
- Personalized service and clear communication
Our services
Land Surveying
Topographical surveys, boundary determinations, and setting-out plans carried out by a sworn land surveyor according to current standards. Reliable measurement data for design, permitting, and execution, with maximum accuracy.
Drone Surveys
Aerial imagery, orthophotos, and volume calculations via drones. Fast, safe, and ideal for site analysis, inspections, and project monitoring.
Monitoring & Follow-up
Continuous supervision of movements, subsidence, and vibrations. Real-time measurement data and notifications for timely adjustments during projects.
3D Laser Scanning
Accurate 3D measurements of buildings and structures. Point clouds and digital models for renovation, restoration, and design.
Thermography
Thermal measurements to visualize heat loss, insulation issues, and leaks. Clear insights into invisible defects.
Bathymetry
Underwater measurements of depths and bottom profiles. Suitable for dredging works, water management, and infrastructure projects.
Land Surveyor Expertises
Legally substantiated reports, descriptions of state (plaatsbeschrijvingen), and Vlabel-recognized valuations for rentals, works, and disputes.
About us
TOPO4D is a multidisciplinary land surveying firm and chartered land surveyor that combines traditional land surveying with innovative measurement technology. We accurately map terrain, buildings, and infrastructure using drones, 3D laser scanning, and structural monitoring, among other methods. As a sworn chartered land surveyor, we provide legally valid surveys and reports, always with the same focus on precision, safety, and a personalized approach.
Over the years, TOPO4D has grown into a household name within Flanders for professional measurement services. We work for individuals, companies, and government entities and are known for clear communication, efficient execution, and high-quality reporting. Our mission is clear: to make reliable land surveying accessible, without compromising on accuracy or reliability.
Our sectors
As a chartered land surveyor, TOPO4D is active in various sectors and offers surveying support tailored to each project. From private homes to complex infrastructure works, we provide reliable measurement data that architects, contractors, notaries, governments, and engineering firms can count on. Thanks to our multidisciplinary approach, we combine precision, technology, and insight into clear results that support every phase of the construction or management process.
TOPO4D invests in mobile 3D laser scanning technology!
Our way of working
What is the difference between the cadastral area and the legal area (property area) of a plot?
They went before you




















