Most of what we publish is argument and practical explanation, not statistics. When an article does use figures, they all come from one open source, described below, and are recalculated each time the site is built from the published files.
Inside Airbnb
Inside Airbnb is an independent project that collects and publishes the content of rental listings visible online, city by city, under Creative Commons CC BY 4.0 terms. We use the September 2026 snapshots for Brussels, Antwerp and Ghent, and the 17 September 2026 snapshots for London and Dublin. This magazine has no connection with Airbnb or with Inside Airbnb, and the figures describe listings on one platform only — not the whole vacation rental market of those cities.
Which listings are counted
- Only entire homes: private rooms, shared rooms and hotel rooms are left out.
- Only active homes: at least one review in the twelve months before the snapshot, with a nightly rate between €1 and €2,000 to exclude data-entry errors.
The indicators
- Host portfolio size: the number of listings the same host account has in that city, as calculated by Inside Airbnb. One account can be a person, a family or a management company, so this is a proxy for professionalisation, not a census of companies.
- Minimum stay: the minimum number of nights set on the listing at the time of collection.
- Nights booked per year: Inside Airbnb's own estimate, based on the number of reviews, a review rate per stay and an average length of stay, capped at 255 nights a year. It is a model, and it underestimates homes whose guests leave few reviews.
- Seasonality: the share of all reviews left in each calendar month over the 24 complete months before the snapshot. Reviews follow stays by a few days, so this is a proxy for when guests check out, not a booking count.
- Median: half the homes are above, half below. We use medians because a few very large values can pull an average a long way.
What these figures are not
They are not forecasts, and they do not tell you what any individual property will earn. They show patterns across many listings at one moment. Correlation between a setting and a result — a minimum stay and estimated nights booked, for example — does not prove that changing the setting would change the result.
Corrections
If you spot an error, write to contact@hexuvium.com; we correct the article and say so on the page.