Topographic surveys
Levels, features, boundaries and services for design and planning.
Surveying & geospatial · London
Surveys and drone mapping with centimetre-level accuracy.
Your decisions are only as good as your data. Castle X delivers accurate, reliable geospatial data for infrastructure, construction, industrial and land development projects: ground-based surveys, aerial photogrammetry and LiDAR, processed into formats your engineers and planners can use straight away.
300+Design projects delivered
100+Analysis projects delivered
100%On-time delivery
15+Years of experience
What's included
Everything from the first survey to handover.
Pick the parts you need, or let one team carry the whole project.
Measured building & industrial surveys
As-built documentation of buildings, plants, facilities and equipment layouts.
UAV / drone mapping
High-resolution aerial imagery and orthomosaics for large or hard-to-reach sites.
LiDAR & point clouds
Dense 3D data for existing structures, earthworks and volumes.
Setting out & monitoring
Control networks, setting out for construction and movement monitoring.
Data analysis & reporting
Processed, interpreted and presented in clear, usable formats for decision-makers.
How it works
Four stages. One accountable team.
We don't hand over drawings and disappear: the same people carry your project from the survey to the site.
- Stage
Scope
We agree the area, accuracy and the outputs your team needs.
- Stage
Capture
Ground survey, drone flight or LiDAR scan with ground control points.
- Stage
Process
Point clouds, orthomosaics and CAD drawings produced and checked.
- Stage
Report
Data delivered in your formats with stated accuracy.
What you receive
Files your builders can build from.
Numbered, revision-controlled and delivered in the formats your contractors and manufacturers already use.
CAD drawingsDWG · DXF
Point cloudsLAS · E57
Orthomosaics & DSMGeoTIFF
Reports & dataPDF · CSV · GIS
Questions
Before you get in touch.
Anything else, the assistant in the corner answers right away, or message us on WhatsApp.
How accurate is a drone survey?+
With ground control points and proper processing, our aerial surveys achieve centimetre-level accuracy, which we state in the report. Where a project needs tighter tolerances, we combine drone capture with ground-based measurement.
Can you survey a site that is live or hard to access?+
Yes. Drone capture keeps surveyors out of traffic, plant and unsafe areas and covers large sites quickly. Flights are planned to comply with UK drone regulations.
What formats do you deliver in?+
Point clouds (LAS, E57), orthomosaics and elevation models (GeoTIFF), CAD drawings (DWG, DXF), 3D models and clear PDF reports, plus CSV or GIS data where needed.
How long does a survey take?+
A typical site is captured in a day; processing and drawings follow within days depending on the size and the outputs required. We confirm the programme with your quote.
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