What Is an As-Built Drone Survey?
An as-built survey documents the actual dimensions, positions, and conditions of completed structures — capturing what was really built rather than what was designed. Construction projects inevitably deviate from original drawings due to site conditions, design changes, and construction tolerances. As-built surveys create accurate records that reflect the real state of the asset.
Drone-based as-built surveys use aerial photogrammetry to generate detailed 3D models and orthomosaic maps of completed buildings, infrastructure, and sites. For large or complex structures — warehouses, industrial plants, multi-building developments — drones capture comprehensive data in a fraction of the time required by traditional survey methods.
In Singapore, as-built drone surveys serve building owners, facility managers, architects, and engineers who need accurate spatial data for renovation planning, space management, compliance verification, and future development projects. From HDB estates to Changi Business Park, from Jurong industrial zones to Marina Bay developments, accurate as-built data is essential for responsible asset management.
As-Built Survey Applications
Facility Management
Accurate building models support space planning, maintenance scheduling, and asset register development for commercial and industrial properties.
Renovation Planning
Before starting alteration and addition works, architects need accurate existing-condition data. Drone surveys provide this faster than manual measurement.
Compliance Verification
Compare as-built conditions against approved plans to verify BCA compliance and identify any unauthorised deviations that require regularisation.
Heritage Documentation
Create precise 3D records of heritage buildings and conservation shophouses in Chinatown, Kampong Glam, and Little India for preservation planning.
As-Built Survey Pricing
| Structure Type | Size | Price Range |
|---|---|---|
| Single Building | Under 5,000 sqm | $1,500 — $3,000 |
| Multi-Building Complex | 5,000 — 20,000 sqm | $3,000 — $7,000 |
| Industrial Facility | Large site | $5,000 — $12,000 |
| Infrastructure (roads, bridges) | Per kilometre | $2,000 — $4,000 |
Deliverables include georeferenced orthomosaic, 3D textured model, point cloud, and dimensioned plans in formats compatible with AutoCAD, Revit, and other design software.
Frequently Asked Questions
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