A large-scale cadastral survey and boundary delineation assignment in Dromankese, executed through permanent monumentation, static GNSS observation, CORS-referenced processing and draft cadastral plan preparation.
The assignment began with approximate parcel extents rather than definitive surveyed areas. Airban's responsibility was not to “find” a predetermined acreage, but to establish, monument and measure the boundary positions presented on the ground and allow the survey evidence to determine the result. This is why professional boundary and cadastral surveying matters.
A four-person field team mobilised through Kumasi and Techiman with an ALPHA GEO dual-frequency GNSS receiver, approximately 40 precast monuments and materials for in-situ Type C monument construction.
The parcel expected to be approximately 165 acres had not been demarcated before Airban arrived. The programme was adjusted while the boundary positions were identified in the presence of the seller's survey representative.
Airban used a traceable field-to-office workflow so each station could move from physical establishment to GNSS observation, post-processing, coordinate verification and plotting. The work ultimately supports the type of cadastral documentation required during formal land processes; see our guide to land registration in Ghana.
Positions identified with local representatives and monumented using a hybrid precast and in-situ Type C approach.
Stations occupied using the ALPHA GEO dual-frequency receiver, typically for approximately 30 minutes per station.
Raw observations converted to RINEX and processed in Topcon Tools against reference data from CORS station SGBE202501.
Processed Ghana National Grid coordinates imported into AutoCAD for plotting, closure checks and acreage computation.
By approximately the seventh station, the field team had already recognised that the boundary being presented materially exceeded the anticipated extent. The survey nevertheless continued along the positions identified on the ground.
Professional surveying does not force field evidence to match an expected acreage. It measures the boundary and lets the evidence establish the result.
These are draft project-stage outputs prepared from completed field observations and post-processing. Professional/statutory certification remains the next project stage.
96.51 hectares · 11 boundary stations
Scale 1:2500Ghana National GridDraft Plan
95.34 hectares · 12 boundary stations
Scale 1:2500Ghana National GridDraft PlanThis assignment is documented within Airban Engineering's Field Journal system, where field observations, technical decisions and project lessons are retained as part of the Airban Method. The public case study presents the client-relevant project story while the detailed technical record remains part of Airban's internal project-control system.
Dromankese improved how Airban approaches future large-acreage mobilisation, boundary readiness and material scope changes. Those lessons now strengthen the systems used on subsequent assignments.
For substantial assignments, the intended parcel should be reasonably identifiable and authorised representatives confirmed before full mobilisation.
Material changes in estimated acreage should be recorded in writing and commercially reviewed before field deployment where practicable.
Expected acreage guides planning. It does not dictate the boundary ultimately measured, documented and presented for professional review.
Airban Engineering provides cadastral surveying, boundary verification, topographic surveying, setting-out and land documentation support across Ghana.