GeoGiza Survey Team

GeoGiza Surveyors & Engineers

90 instruments · 3000+ delivered projects · 3000+ km of roads

GeoGiza's surveying & geomatics team — field engineers and surveyors delivering topographic, cadastral, aerial, hydrographic, and laser-scanning work across a fleet of 90 instruments and a track record of 3000+ delivered projects. We write from the field, not from theory.

Articles by GeoGiza Survey Team

Documenting Farmland Ownership and Registering It at the Real-Estate Registry — a Guide for Badrashin, El Ayat, and Abu El-Nomros Landowners

Why a preliminary sale contract is not enough: a practical guide for landowners south of Giza on the survey documents registration runs on — the certified drawing, the records-conformity check, and what the registry expects before your ownership is formalized.

Dividing Inherited Farmland in the Villages South of Giza: from the Inheritance Declaration to Partition on the Ground

A practical guide for heirs across the Badrashin, El Ayat, and Abu El-Nomros villages: which documents precede a partition, how consensual division compares with going to court, and how a surveyor translates legal shares into staked, documented plots for each heir.

Farmland Boundary Surveys and Matching Against Egyptian Survey Authority Maps — a Guide for Badrashin, El Ayat, and Abu El-Nomros Landowners

A practical guide for farmland owners south of Giza: how a boundary survey works on the ground, why reality drifts from the paper record, and how we match your plot against the Egyptian Survey Authority's maps before any sale, partition, or build.

Robotic vs Manual Total Stations: One-Person Crews, Tracking, and When Manual Still Wins

A robotic total station turns a two-person crew into one and lets the rod-holder drive the instrument. But it is not always the right tool. Here is how our field teams decide — by job, sight lines, prism tracking, and crew economics.

Topographic Survey, Field to CAD: How a Job Runs End-to-End

What actually happens between a bare site and a contoured DWG. We walk a topographic survey the way our crews run it — control first, then GNSS-RTK and total-station capture, then processing into a contour map and CAD deliverable.

Terrestrial Laser Scanning: A Field Guide to Scan-to-BIM

What a 3D laser scanner actually captures in the field, how we turn the point cloud into a BIM model, and the call we make on site when a scanner beats a total station.

The Surveying & Geospatial Glossary: How the Core Terms Actually Connect

A plain-language hub to the terms you keep hearing on a project — topographic survey, point cloud, orthomosaic, LiDAR, GIS, GNSS, geoid, datum, BIM — explained the way our field crews actually use them, and wired together so you can see how one feeds the next.

Survey Drones in the Field: Mapping vs LiDAR Payloads, and What You Actually Get

We fly drones over highways, farmland and construction sites every week. Here is how our crews choose between a photogrammetry camera and a LiDAR payload, how altitude trades against coverage, and what lands on the client's desk.

Survey Accuracy Standards Explained: What “±2 cm” Really Means

A practitioner’s guide to how survey accuracy is defined and proven — ISO 17123 instrument tests, ASPRS positional classes, FIG practice, and why a single “±2 cm” number on a quote tells you almost nothing without its confidence level, datum, and check-point evidence.

Setting Out: Transferring Design Coordinates to the Ground with Millimetre Control

How our field teams take a coordinate list from the design model and stake it on a live site so concrete, steel, and services land where the drawings say — with a control network, a checked occupation, and an independent verification on every point.

Scan-to-BIM for Existing Facilities: From Laser Scan to a Coordinated IFC Model

How our field crews turn an as-built facility into a coordinated, openBIM model — the scan plan, the registration discipline, and what LOD you can honestly expect from a point cloud.

Surveying the Roads & Highways Sector: Corridor Control, Alignment, and Earthworks

Across more than 3000 km of roads, our crews have learned that a highway lives or dies on its control corridor. Here is how we set control, stake an alignment, and measure earthworks so the design that leaves the office is the road that gets built.

Earthworks Volumes from Survey Data: How We Take Off Cut and Fill

An honest quantity is a settled invoice. Here is how our crews turn a survey into cut-and-fill numbers — surface against surface, drone against ground — and the traps that quietly inflate a volume.

Where GNSS-RTK Error Really Comes From — and the Field Habits That Shrink It

RTK gives you a fixed solution in seconds, but a green 'fixed' light does not mean the point is good. Here is where the millimetres leak — multipath, PDOP, baseline length, the atmosphere — and the field habits our crews use to hold tolerance.

GNSS Modernization: What More Satellites Mean for Surveyors

GPS is no longer the only game in the sky. With GPS III, Galileo, BeiDou and GLONASS all overhead, our receivers now track 30+ satellites at once. Here is what that actually changes on the job — from canyon-tight cadastral lots in Cairo to open desert alignments.

GNSS Base-Rover RTK vs Network RTK (NTRIP/CORS): What We Run, and Why

From hundreds of road, rail, and cadastral jobs across Egypt, here is how our crews choose between a single base-and-rover setup and an NTRIP/CORS network RTK connection — by coverage, accuracy, setup time, and real cost on the ground.

The Geoid Explained: Why Your GNSS Height Is Not the Height You Want

A GNSS receiver hands you an ellipsoidal height — a number that means nothing to a drainage engineer. Here is how our crews turn that into a real orthometric height surveyors and water actually agree on, and why the geoid model and a benchmark tie sit between the two.

Why Ground Control Points Make or Break Drone Photogrammetry

A UAV can fly a thousand acres in an afternoon, but the orthomosaic and DTM are only as good as the ground control under them. Here is the GCP-first workflow we run on our road and farmland projects, and what happens to accuracy when control is thin.