Construction monitoring: how often should you fly?
The question everyone asks about construction monitoring: every week? Every month? The honest answer: it depends on the phase. Flying too often is wasted money; too little and you miss exactly the moment that counts. Here is a practical guide.
Why frequency matters
Construction monitoring is only useful if the captures form a timeline. One photo says "this is how it looked"; a series of dated captures says "this is what happened, and when". That timeline is what you need for progress reporting and as evidence in a dispute. The right frequency captures the important moments without paying needlessly for quiet periods.
A guide by phase
- Earthworks and foundations: here a lot changes and much disappears underground. Fortnightly to monthly, plus a capture just before everything is covered.
- Structural work: monthly is usually enough to follow progress.
- Finishing: lower frequency; mainly the milestones count.
- Milestones and handovers: always a flight, whatever the schedule — these are the moments you will want to prove later.
Large or fast-moving sites need more; a quiet project less. The rule of thumb: fly often enough that you miss no crucial change between two captures.
Orthophotos as evidence
Every flight delivers a georeferenced orthophoto in which you measure distances and areas. Because each capture is dated and on coordinates, the series becomes a dossier: in a dispute over progress, damage to neighbouring plots or "who did this and when", you put images on the table instead of memories.
Letting the client follow along
Construction monitoring is only truly valuable when everyone sees the same images. Through a branded client portal such as DronePortal, the client or engineering office views each flight online, measures for themselves and adds annotations — without separate files or WeTransfer. The timeline becomes a shared working tool.
Common mistakes
- Flying once and calling it "monitoring". Without a series there is no timeline.
- Flying everywhere at the same frequency. Match the frequency to the phase.
- Skipping the baseline. The capture before the start is your reference for damage and progress.
Why with a drone (and why Droneview)?
A drone records an entire site in one flight, always from the same route, so the captures are comparable. Droneview operates EASA-certified with the Matrice 30T. How we monitor and report on sites structurally, you can read on construction monitoring by drone.
Frequently asked questions
How often should you fly a construction site?
It depends on the phase: during earthworks and structural work a lot changes, so monthly or fortnightly; during finishing a lower frequency is enough. Key milestones such as handovers always get a flight.
Why fly regularly instead of once?
A series of dated captures forms a timeline: you see progress and hold evidence in a dispute over who did what and when. A single photo lacks that context.
What are the orthophotos for?
A georeferenced orthophoto lets you measure distances and areas and serves as a dated exhibit in disputes over progress or damage.
Have a site monitored structurally?
Tell us about your project — we propose a flight schedule that fits the phases.
Request a quote