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We produce accurate contour maps for your site from field topographic-survey data (Total Station and GNSS-RTK) or from elevation models extracted from drone imagery: we build a TIN/DTM terrain model and generate contours at the interval you need (0.25 m for flat sites, 0.5 m and 1 m for general projects), with spot levels, ridges and depressions, and surface-drainage flow lines. The output is a layered DWG, a PDF for approval, and a KMZ for Google Earth preview — ready for grading and drainage design and cut-and-fill quantities.
Designing on land with unknown terrain means grading and drainage surprises: water ponding where it should not, and cut-and-fill quantities ballooning after award. An accurate contour map before design reveals the true slope of the ground and steers level decisions from day one.
Designers, consultants, developers, and grading/infrastructure contractors who need a reliable terrain model for level design, drainage networks, feasibility studies, and quantity takeoff.
Compile field survey data or process drone imagery into an elevation model
Build the TIN/DTM terrain model and clean outlier points
Generate contours at the required interval and verify ridges and depressions
Export DWG, PDF, and KMZ and run QA against the source data
From our owned 90+ instrument fleet, we deploy the following on this service:
UAV photogrammetry and LiDAR for orthomosaics, topographic mapping, and asset inspection.
We own and operate our field fleet — our site shots carry the “From our field work” chip, alongside class-reference photos.
Yes, we work with DEM and orthophoto from UAVs to produce high-accuracy contours.
Quantity takeoff is a separate service but easy to add after the contour map is prepared.
It starts at EGP 600 for small sites with ready data; larger areas are priced per acre or m², factoring in the required contour interval, terrain roughness, and the data source (a fresh field survey or existing data). The final cost depends on scope — tell us the area and data source and we will send a detailed quote.
They serve preliminary studies only; their vertical accuracy is within several metres and cannot support grading and drainage design or quantity calculations. For design-grade work we use a centimetre-accuracy field survey or a drone-derived elevation model tied to ground control points.
Real photographs from GeoGiza's field projects across Egypt and the region.
We take the risk off your project — so you can commit with confidence.
If a deliverable misses the agreed accuracy spec, we re-survey and correct it at no extra cost.
We agree the delivery schedule up front and keep you updated at every stage until it's met.
Every engagement is covered by an NDA. Your data and drawings are never shared.
You receive the editable source files (DWG, DXF and more) — full ownership, no lock-in.