C‑DRONE
Top-down orthophoto-style view of farmland parcels captured by drone

🗺️ SURVEYING & PHOTOGRAMMETRY · SAINT-QUENTIN (02) · €800–3,000 PER DAY

Drone surveying & photogrammetry in Saint-Quentin

Drone photogrammetry turns a few hundred aerial photos into precision survey products: georeferenced orthophotography at 1–3 cm/pixel, digital surface and terrain models, 3D point clouds, contour lines, stockpile and earthworks volume calculations. With an RTK/PPK drone and ground control points measured by centimetre-grade GNSS, accuracy reaches 2 to 5 cm both horizontally and vertically — sufficient for most development studies, at a fraction of the cost of an exhaustive ground survey.

We cover from 1 to several hundred hectares per day depending on the required resolution, including hard-to-access sites: working quarries, landfills, riverbanks, industrial wasteland. Deliverables come in your coordinate system (Lambert 93 / RGF93, conic conformal projections) and standard formats (GeoTIFF, LAS/LAZ, DXF, GIS formats). Chartered surveyors, civil engineering offices, quarry operators and local authorities are regular clients.

Free quote — surveying & photogrammetry in Saint-Quentin

Rates

€800–3,000 per day — the range observed on the 2026 French market, including regulatory preparation, flight and delivery. The exact quote depends on the site, the deliverable and the airspace context in Saint-Quentin.

Common use cases

The local context in Saint-Quentin

The most populous sub-prefecture of the Aisne, Saint-Quentin was rebuilt after 1918 in an Art Deco style that is now its signature: facades, the station buffet, the conservatory — a 1920s heritage unique in the region. The Gothic basilica, the flamboyant-Gothic town hall and the 48-hectare Marais d'Isle national nature reserve, enclosed within the city, complete the picture. The reserve imposes a strict low-altitude overflight ban to protect birdlife.

An industrial territory in transition (textiles, mechanics), Saint-Quentin is betting on robotics and digital industry. Local drone missions: thermography of older housing, monitoring of urban renewal programmes, Art Deco heritage promotion, agricultural imaging over the Vermandois arable plains, and structure inspection along the Saint-Quentin canal.

Applicable regulations

Survey flights mostly take place outside built-up areas, in open category A2 or A3 (photogrammetry drones weigh 900 g to 6 kg) flying automated grid patterns below the regulatory 120 m. Long corridors or populated sites fall under the specific category (STS-01/STS-02, or an operational authorisation for BVLOS on long corridors). The operator is registered on AlphaTango and checks regulated zones on Géoportail: quarries and industrial estates are often near airfields or under military low-altitude training routes (RTBA), requiring protocols or time slots. Legally binding georeferencing (enforceable boundary plans) remains the exclusive remit of chartered surveyors, with whom we work as subcontractors.

Frequently asked questions

What accuracy can a drone survey guarantee?

With an RTK drone and ground control points, we guarantee 2 to 5 cm XYZ accuracy, verified against independent checkpoints whose residuals are documented in the processing report.

Does a drone survey replace a chartered surveyor?

No for legally binding documents (boundary demarcation, land division): that is the chartered surveyor's legal monopoly. Yes for technical studies: our deliverables feed directly into civil works design, volume calculations and environmental studies.

Does vegetation interfere with photogrammetric surveys?

Yes: photogrammetry measures the visible surface, so the canopy rather than the ground beneath. For wooded areas, we offer drone LiDAR, which penetrates vegetation and reconstructs the bare terrain.

Can this service be flown anywhere in Saint-Quentin?

Almost: Réserve naturelle nationale des marais d'Isle (survol interdit à basse hauteur); Aérodrome de Saint-Quentin-Roupy (LFOW). Depending on the exact location, the pilot picks the right framework (open or specific category) and files the required declarations — included in the quote.

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