25 Sites, 2,365 Homes, One Make-or-Break Tech Test
Ireland has a housing target, a housing shortfall, and according to one Dublin developer, a live experiment in whether construction technology can close the gap. Cairn Homes, one of Ireland's largest homebuilders, has been running drone surveys and 3D scans across its active building sites since 2023. By the end of 2027, the company expects to have delivered close to 18,000 new homes. Whether it hits that number will say something the entire industry is watching: can reality capture actually change how a construction business performs, or is it expensive window dressing?
The answer emerging from Cairn's portfolio is more interesting than either outcome. The company has moved from initial pilots to mandatory reality capture across all sites in under two years, signing a multi-year enterprise agreement with DroneDeploy, according to SUAS News. That adoption speed, from experiment to standard operating procedure in roughly 18 months, is the more striking fact in an industry that has spent a decade promising digital transformation and delivering spreadsheets.
Cairn Homes is not a small operation. The company was active on an average of 25 residential sites last year, according to its 2025 annual results. It sold 2,365 homes in 2025, 124 more than the prior year, at an average selling price of 392,000 euros. Revenues came in at 944.6 million euros, up 10 percent from 859.9 million in 2024. Operating profit hit 168.6 million euros, a 12 percent increase. These are the financials of a company with something to prove and something to protect. The affordability of new homes remains the most significant challenge in Ireland today, as CEO Michael Stanley put it in the annual report.
The technology itself is not exotic. DroneDeploy, a San Francisco-based reality capture platform that reached break-even and raised 15 million dollars in strategic funding in September 2025, has been used on over 3 million sites globally. The company's platform processes drone imagery and 3D scans into maps and models that site managers compare against plans. What Cairn has done is make it routine: scanning trenches before backfilling so the as-built record exists, generating progress reports tied to something verifiable rather than a contractor's estimate.
"Cairn is not just experimenting with drones or AI, they are operationalising reality capture across their business," said Michael Bernatz, a drone industry figure quoted in the SUAS News report.
The company uses DroneDeploy Ground Pro 3D scanning and RTK-enabled mobile capture, RTK being real-time kinematic positioning, a satellite navigation technique that gives centimeter-level location accuracy. Cairn standardises drones, 360-degree cameras, and handheld 3D scanning across the portfolio. Jakub Urbanczyk, described in a PBC Today report as Cairn's digital construction lead, said digital construction is not a side project. It is central to how the company plans and delivers developments.
One concrete application is trench verification. Before a contractor backfills an excavated trench, Cairn scans it. The scan produces a record that exists independently of anyone's sign-off. If a dispute arises later about whether the work was completed to spec, the data is there. "You are not relying on someone's word," Bernatz said in the SUAS News report. "You are in the data."
This is where the productivity argument gets interesting rather than theoretical. DroneDeploy claims its Progress AI feature generates 95 percent-plus accurate progress reports within minutes, a figure the company cites on its blog without independent verification. Cairn's actual build cost inflation came in at about 1 percent in 2025, versus an industry average of about 2 percent. Whether that gap is attributable to better site management, timing of material contracts, or something else entirely is not simple to untangle. But the number exists, and it is in the company's interest to explain it.
Cairn closed a forward order book of 3,452 new homes with a net sales value of over 1.32 billion euros at year-end 2025, according to the preliminary results. The company also runs an apprenticeship programme with over 270 registered apprentices, which matters when thinking about what automation does to the people on a building site, not just the site itself.
The honest answer to whether this adds up to a technology story or an operations story is both. DroneDeploy is a vendor, and Cairn is a customer reference, which means both have incentive to talk up the results. No independent third party has audited the workflow outcomes or published a comparison against a control group of sites without drone capture. What Cairn has done is integrate the data into its management processes in a way that looks genuine rather than performative. The scans are tied to decisions, not just dashboards.
The broader question the Irish housing experiment raises is whether this speed of adoption is replicable. Construction has a long history of promising technology adoption and delivering slow, partial uptake. Cairn went from pilot to mandatory in 18 months. If that is the floor rather than the ceiling for well-capitalised developers willing to standardise the workflow, the case for automated site capture in residential construction gets considerably stronger. If Cairn's results do not hold as the portfolio scales, if 25 sites becomes 40, if the back-office integration frays at higher volume, that will be the more instructive data point.
The 18,000 homes by end of 2027 target will answer some version of this question. In the meantime, someone is scanning every trench before it disappears underground. That record will either prove the technology worked, or show exactly where it did not.
† Add footnote: '† Source-reported; not independently verified.'