Drone Ouidah · Bénin
Drone Ouidah — memorial heritage and tourism mapping
OHM WORKS works in Ouidah on 3D documentation of memorial sites (Door of No Return, Slave Route, Python Temple, Kpasse sacred forest) and mapping of urban expansion zones. 40 km from Cotonou, our team mobilises within half a day.
- Coverage
- 70 km
- Quote turnaround
- 48 h
- XY accuracy
- < 3 cm
- Case studies
- New
Why local
Document what must be passed on.
Heritage + ANAC coordination
Memorial sites and the Kpasse sacred forest require cross-permissions: ANAC for the flight, site managers for access, sometimes the Heritage Directorate. We handle the full administrative circuit.
40 minutes from Cotonou
Ouidah is one hour by road from our Cotonou base. For 1- to 3-day heritage surveys, our team travels with equipment in a secured vehicle — mobilisation within 48 h.
Quote within 48 h
Like elsewhere, we price a mission within 48 h after brief. For multi-year programmes (conservation monitoring, coastal erosion tracking), we offer an annual flat rate with recurring passes.
Reading the memorial landscape
The Slave Route is a 4 km itinerary dotted with memorials. Our method delivers both high-resolution photogrammetry of individual elements and a continuous orthophoto of the route — useful for site managers and tour operators.
Available services
Our drone missions in Ouidah
In Ouidah, demand focuses on heritage documentation, coastal tourism mapping and monitoring of the sacred forest. Our four most-mobilised crafts locally:
Heritage Conservation
3D modeling, LiDAR surveys, digital twins of listed sites.
DiscoverUrban Planning & Construction
Topographic surveys, site monitoring, volumetrics and BIM.
DiscoverForest Management
Aerial stand inventory, biomass, under-canopy mapping and carbon monitoring.
DiscoverTelecom
Tower audits, infrastructure inventories, digital twins.
Discover
On the ground
First mission in Ouidah?
Ouidah is a priority target for our heritage development. Our reference on the Royal Palaces of Abomey attests to our ability to operate on listed memorial sites. Be OHM WORKS' first public reference on the Slave Coast.
Coverage in Ouidah and Atlantique
Mobilisation from Cotonou in 1 hour. Our radius covers the full coastline (Pahou, Kpomassè, Comè) and the lake zone (Avlékété, Djègbadji). For missions further west (Grand-Popo, Hillacondji), we set up a temporary on-site base.
- Service radius
- 70 km
- On-site mobilisation
- ≤ 72 h
Drone regulation in Ouidah
Ouidah combines several frames: listed sites (Slave Route), buffer zones (sacred forest), coastal proximity (reduced aeronautical zone). Every mission is preceded by an ANAC declaration and, for memorial sites, by an agreement with the manager (NGO or administration).
- ANAC Benin — Prior declaration, specific authorisations for listed sites and tourist-frequented areas.
- Memorial sites — Tailored SORA — visitors present, fragile structures, wooded environment for the sacred forest.
- Atlantic coast — Coordination with Cotonou airport for flights near the coast if altitude exceeded.
Frequently asked questions — local
Drone in Ouidah — your questions
Can a drone fly over the Slave Route or the Door of No Return?
Yes, with a clear framework. We obtain ANAC authorisation, the site manager's agreement (usually the Heritage Directorate or its delegate) and plan the flight outside peak tourist hours. Our ANPT reference attests to our rigour on listed sites.
What accuracy for modelling the Python Temple or the Basilica?
Centimetre-grade photogrammetry: XY < 3 cm on the orthophoto, Z < 5 cm on the DTM, 3D mesh ≤ 2 cm per side. Sufficient for a usable digital twin for architectural analysis, conservation planning or virtual tour.
What if the mission concerns the Kpasse sacred forest?
The sacred forest requires special coordination with traditional custodians and the communal authority. We adjust flight parameters (altitude, noise, time slot) to respect the sacred character of the site and exclude certain zones from acquisition if requested.
What lead time from Cotonou?
1 hour by road. For a one-off mission, the team is on site within half a day. For a 2- to 3-day heritage survey, we mobilise within 48 to 72 h after quote validation, with local base camp if needed.
Typical deliverables for a memorial site in Ouidah?
Centimetre-grade orthophoto, DTM/DSM, meshed 3D model (OBJ/PLY/GLB), cut plans, pathology study on high-resolution photos, and optionally an embedded WebGL virtual tour for public communication.
A project in Ouidah?
Firm quote within 48 h, team based in Cotonou.
Photogrammetry, LiDAR, thermography, 3D modelling — XY accuracy < 3 cm on every deliverable.