When a Digital Twin for Existing Real Estate Really Pays Off

For many owners and property managers, a digital twin sounds like a "nice to have" at first — until the second time they call in tradespeople for an on-site survey, or have to restart a refurbishment plan because the as-built data was wrong. At that point the maths shifts quickly. We show the threshold at which the ROI becomes positive, both on paper and in practice.

What does a digital twin cost — and what does not having one cost

In 2026 our pricing for a 3D scan of a typical existing property ranges from €499 (a flat up to 250 m²) to €3,990 (an industrial hall up to 10,000 m²). What many overlook: the alternative is not "no cost" — it is the sum of every minor survey call-out, every plan change caused by as-built deviations, every reworked detail on site and every custom fit-out that has to be re-made.

A conservative rule of thumb from our own projects: for every 1,000 m² of existing floor area that is not documented in 3D, you incur roughly €5,000–€15,000 in additional costs over the lifetime of a mid-sized refurbishment project (5–10 years) — costs that would have been avoidable with a single scan at the start.

Three thresholds at which the ROI turns clearly positive

Threshold 1: A concrete project within the next 24 months

If you are planning to refurbish, convert, extend, sell or re-let — and intend to do so within the next two years — a scan almost always pays off. The data feeds directly into the architect, energy consultant, tradespeople, estate agent and bank valuations. You save three to five site visits per stakeholder.

Threshold 2: More than one party needs as-built data

As soon as the architect, structural engineer, energy consultant and tradespeople are all meant to work from the same as-built data, a central 3D source is economically superior. Every party works from the same model — no more arguments over which survey drawing is the current one.

Threshold 3: The property is complex

Complexity is not just size. An 80 m² period flat with awkward room layouts, out-of-square walls, old bay windows and tricky connecting details often pays back faster than a modern 300 m² office floor with rectangular rooms. The question is: how often will I have to re-measure or re-survey if I do not have a scan today?

Worked example: apartment building, 800 m², energy retrofit

A typical project from our portfolio: an existing 1960s apartment building, 8 flats, planned energy retrofit with external wall insulation, window replacement and a new heating system.

Saving in this example: around €6,700. That is the typical order of magnitude — and the twin then remains available for every further project (letting, sale, insurance, follow-up modernisation).

When a scan is NOT worth it

To be straightforward, we do not recommend a scan when:

• You have no concrete project planned for the next few years — the property changes, and the scan becomes outdated.
• It is a single very small piece of work (for example, replacing a door) for which a classic hand-measured survey is sufficient.
• You only need a photo listing — there are better and cheaper methods for that.

Bottom line

A digital twin does not pay off in the abstract through "digitalisation" — it pays off concretely through saved survey call-outs, avoided rework and faster planning. From around 500 m² of existing floor area, or from the first serious project involving three or more parties, the maths is positive in over 80 percent of cases.

If you are unsure whether the effort is worth it for your project: drop us a quick note. We will give you an honest assessment up front, even if no order ends up with us.