Developers
Independent proof of progress for buyers, boards and investors, without waiting for the contractor's monthly report.
Read more about control.io for Developers
How it worksFrom drone flight to delay verdict in four steps.Example delay findings from the latest flight
Floor 13 · StructureCritical−28d
Floor 15 · StructureWatch−7d
Proof, not progress claimsDrone flights measure every floor and compare it with the schedule your developer signed, so a delay is shown, not argued.
How the 3D model is made
Everything you see in the 3D model comes from one drone flight. Scroll to follow a real sample flight, from the photos to the measured storeys.
1 · Fly
Defect explorer · sample project
The tower below is rebuilt from six drone photos. Each pin is a finding from the latest flight, checked against the baseline schedule. Pick one to fly to it.
Sep 2026 · 28 days behind
Issues on this flight
Sep 2026 flight · 9 findings · pick one to fly to it
What is control.io?
control.io is an independent construction-supervision service that flies drones over multistorey building sites, reconstructs each flight as a 3D model, compares it with the official construction schedule, and issues evidence-grade PDF reports that show whether, where and by how much a project is late.
Last updated
On-demand inspections
Owners and building inspectors order a full inspection or a revision from the control.io app, whenever they need one. In Yerevan and Kotayk a car with a drone crew pulls up within 3–4 hours, and the independent report arrives within 12 hours of the flight.
Example order status: INS-2026-0007Car on the way 09:40–10:40
From tap to report
ASAP order · Yerevan & Kotayk
Step 1
1 tap
Choose a full inspection, a revision of open findings or specific floors. ASAP, or at a time that suits the site.
In the app
Step 2
3–4 h
A car with a certified pilot and a drone pulls up and flies the whole building. You follow the crew live.
Tracked live
Step 3
12 h
A PDF with the 3D model, progress against the schedule and hashed photos, within 12 hours of the flight.
PDF · 3D · schedule
FromAMD 90,000per inspection
ASAP +25%. VAT excluded, paid by invoice, no in-app payment.
- App Store· coming soon
- Google Play· coming soon
Service area: Yerevan and Kotayk. Times count from order confirmation. We fly in daylight only; strong wind, rain or restricted airspace can move the slot, and we call the site contact if it does.
Who it is for
The same drone evidence answers different questions: is the tranche earned, is the permit respected, is the bond at risk, are the panels producing. Pick your seat at the table.
Banks & lenders
Release construction loan tranches against measured progress, with evidence your credit committee can file.
Read more about control.io for Banks & lenders
Municipal building control
Check permitted works against what is being built, across many sites, without sending an inspector to every one.
Read more about control.io for Municipal building control
Insurers & sureties
Underwrite and monitor construction risk with a dated visual record of every insured or bonded site.
Read more about control.io for Insurers & sureties
General contractors
Show owners exactly where the programme stands and defend your own delay claims with the same evidence.
Read more about control.io for General contractors
Energy & Solar
Thermal and RGB drone inspection of solar farms, with every anomaly pinned to a module.
Read more about control.io for Energy & Solar
What we do
control.io measures a building from the air, rebuilds it in 3D and compares it with the schedule the developer committed to. Here is what that gives you.
Know which floors are finished, which are late and by how many days, measured from the air rather than reported by the party being measured.
Every flight becomes a measurable 3D model. Compare this month with last month, or the building with the plan, on screen.
What we stand on
A supervision report is only worth something if the reader trusts how it was made. These three principles decide how we fly, process and write.
- 01
We are not the contractor and not the developer. Our pilots, our processing and our reports answer to the evidence, which is why lenders and municipalities can rely on them.
- 02
Original images are kept, hashed and linked to the schedule page they test. Anyone can re-open a finding and see exactly what it rests on.
- 03
A delay found in month three can still be recovered. Regular flights and automatic comparison surface slippage while there is time to act on it.
Our services
Every service writes into the same project timeline, so a facade defect, a late slab and a hot solar module are all traceable to a dated, hashed image.
Construction progress monitoring & schedule verification
Scheduled drone flights measure what was actually built and set it against what the schedule says should exist by that date.
- Per-floor verdicts. Each storey and trade gets a status and a day count, not a vague percentage.
- Same route every flight. Repeatable flight paths make month-to-month images directly comparable.
- Earned schedule, not guesses. Progress is converted into schedule time so a slip reads as days behind.
3D reconstruction & as-built mapping
Photogrammetry turns every flight into a measurable 3D mesh, orthomosaic and point cloud.
- Mesh, ortho, point cloud. Standard photogrammetry outputs you can export to your own CAD or BIM tools.
- Measure in the browser. Distances, heights and areas taken straight from the reconstruction.
- Volumes and earthworks. Stockpile and excavation volumes calculated between flights.
Construction document intelligence
AI reads schedules, permits and contracts and turns them into dated milestones, each with a page citation.
- Milestones with citations. Every extracted date points to the source page and line for audit.
- Schedules, permits, contracts. Works with PDF programmes, scanned permits and contract annexes.
- Human review built in. An engineer confirms the milestone list before it is used in a report.
High-precision structure & facade inspection
Close-range facade passes capture cracks, missing anchors and envelope defects at a known ground sample distance.
- Located on the model. Every defect pinned to a floor, elevation and grid position.
- No scaffolding or rope access. Survey tall elevations without closing the site or the street.
- Before-and-after proof. Re-fly the same pass to confirm the defect was repaired.
Delay evidence reports & real-time monitoring
A live project feed plus PDF reports with hashed imagery and the official documents annexed.
- SHA-256 per image. Each photo is hashed at upload so later tampering is detectable.
- Documents annexed. The cited schedule and permit pages travel inside the report.
- Live feed between reports. Flights, verdicts and alerts appear in the dashboard as they land.
Solar panel inspection
Thermal and RGB drone surveys find hot-spots, soiling, cracked cells, disconnected strings and shading.
- Thermal + RGB together. Heat signatures are confirmed against a visual image of the same module.
- Per-module defect map. Every anomaly geo-tagged to a row, table and module position.
- Prioritised PDF report. Anomalies ranked by class so O&M crews fix safety issues first.
How it works
control.io follows the same four steps on every site: fly a saved route, reconstruct the site in 3D, compare it with milestones taken from the official documents, and report the difference.
One flight, end to end
AI comparedIllustrative timeline for a standard tower flight
Day 0Day 1Day 2Day 3
Step 1
Fly
A certified pilot flies a saved route: orbits, facade passes and a nadir grid. The same route every visit keeps images comparable.
Step 2
Reconstruct
Photogrammetry rebuilds the site as a 3D mesh, orthomosaic and point cloud. Every photo is hashed on upload.
Step 3
Compare with the plan
The model is measured floor by floor and set against milestones the AI extracted from the schedule, permit and contract.
Step 4
Report
You receive a verdict per floor and trade, days behind in earned-schedule terms, and a PDF with the evidence annexed.
Why it matters
Percent complete hides lateness. control.io converts measured progress into earned schedule, so the answer comes out in days.
Tower B · example flight, 7 Sep
47% earned vs 61% planned
Structure
27%
Envelope
13%
Glazing
7%
Not yet built
53%
+20%
−28d
SHA-256
Gallery
Three visits on the same saved route. Because the camera positions repeat, each image lines up with the last, and the difference is the progress.
Tower B progression
Orbit south-west · repeat route
14.03 · Flight 1
4 floors
Structure
16.05 · Flight 2
6 floors
Structure + envelope
18.07 · Flight 3
8 floors
Topped out
FAQ
Straight answers about flights, evidence, documents, solar inspection and price. Anything else: hello@control.io.
About control.io
What is control.io?Product
control.io is an independent construction-supervision service. It flies drones over multistorey sites, rebuilds each flight as a 3D model, compares the model with the official construction schedule and issues PDF reports that show which floors are late and by how many days.
How does control.io know whether a building is behind schedule?Method
The AI extracts dated milestones from the schedule, permit and contract. Each flight's 3D model is measured floor by floor and trade by trade, and the measured progress is converted into earned schedule, the date by which the plan expected that much work. The difference from today is the delay in days.
Are the delay reports usable as evidence?Evidence
They are built to be verifiable. Original images are retained, each receives a SHA-256 hash at upload, capture time and location are recorded, and the schedule pages each finding relies on are annexed. Whether a report is admissible in a specific proceeding is a matter for your lawyers and jurisdiction.
How often are sites flown?Flights
Monthly on the Pilot plan and bi-weekly on Portfolio. Enterprise customers can set any cadence, including weekly flights during frame and envelope work.
Who flies the drone?Flights
control.io's certified pilots, operating under local aviation rules. Enterprise customers and contractors with their own drone teams can fly our saved routes and upload through the app.
What 3D outputs do I receive?3D
A textured 3D mesh, a top-down orthomosaic and a point cloud for every flight, viewable in the browser and exportable for CAD and BIM tools.
Which documents can the AI read?Documents
Construction schedules and programmes (PDF exports), building permits including scanned ones, contracts and loan agreements with milestone schedules. Every extracted milestone keeps a citation to its source page, and an engineer confirms the list before it is used.
Does control.io inspect solar panels?Solar
Yes. Thermal and RGB drone flights detect hot-spots, cracked cells, active bypass diodes, disconnected strings, soiling and vegetation shading. Each anomaly is classified and pinned to a module on a geo-tagged map.
How much does control.io cost?Pricing
The Pilot plan for a single site starts from USD 1,490 per month including monthly flights. Portfolio covers up to 10 sites from USD 5,900 per month. Enterprise and lender plans with API access and white-label reports are priced per portfolio.
How fast can you inspect a site on demand?On demand
In Yerevan and Kotayk, an ASAP order from the control.io app or dashboard puts a car with a drone crew on site within 3–4 hours of confirmation, and the independent PDF report arrives within 12 hours of the flight. Owners and building inspectors can order a full inspection, a revision of open findings or specific floors; the price is shown before you confirm and paid by invoice. We fly in daylight only, and strong wind, rain or restricted airspace can move the slot, in which case we call the site contact.