1,413 German Stays Have a Sauna — and 185 Put It Inside the Flat

1,413 German properties in our catalogue record a sauna, and 185 of them record it inside the flat or room rather than down the corridor. A private sauna in a holiday flat is a distinct thing to want and no major booking site gives you a filter for it. The 185 are real. They are also, as it turns out, an artefact of how three regional tourist boards fill in a form — and they are the least contactable rows in the entire German dataset. Both of those facts are worth more to you than the headline.

Where these numbers come from. The Deutsche Zentrale für Tourismus publishes an open knowledge graph (destination.one) fed by the regional tourism boards. We hold 44,413 active German records, of which 35,385 carry any amenity data at all — that smaller number is the denominator for everything below, because a property that lists no amenities has not said it lacks a sauna, it has said nothing. Queried 17 August 2026.

The vocabulary, audited before it was counted

German amenity tokens are free text and notoriously trap-laden — the pet vocabulary contains four separate phrasings of “pets not allowed”, each of which contains the word for pets. So we listed every token containing “saun” before counting anything. There are three, and reassuringly none of them is a negation.

The two main tokens never appear together. Not one property in Germany carries both “Sauna” and “Sauna in Zimmer/Appartement” — the sum is exactly the distinct count, 1,228 + 185 = 1,413. That is unusual enough to be a clue: the boards treat them as mutually exclusive choices on a form rather than as two facts about a building. A hotel with a spa sauna and a suite with its own sauna cannot say so.

The 185 in-room saunas exist in three postcode regions and nowhere else

Split the country by the first digit of the postcode and the in-room token collapses. All 185 sit in postcode regions 3, 4 and 5 — the Weser and Harz foothills, the Ruhr and Westphalia, and the Cologne–Eifel belt. The other seven regions, between them holding more than 9,000 amenity-carrying properties, use the token zero times.

So “185 German properties have an in-room sauna” is not a fact about Germany. It is a fact about the three tourist-board regions that offer that box on their form. Bavaria has two sauna records in the whole of postcode region 8, which tells you about Bavarian data supply rather than Bavarian bathing habits. Saxony and Thuringia's 22.3% is the highest sauna rate in the country and comes off a base of only 1,372 records — the highest rate, not the largest number. The largest number of saunas anywhere is region 3's 395.

And the in-room 185 are almost impossible to contact

This is where the category stops being useful and starts being interesting. Compare the two groups on everything else the register holds.

One telephone number, one website and one photograph across 185 properties. The house-sauna rows, by contrast, are among the best-documented accommodation records we hold anywhere. The in-room token evidently travels through a different, thinner export path — rich in room-level attributes, empty of everything a traveller needs to make a booking. We are publishing the count because it is true and because nobody else publishes it; we are not publishing it as a shortlist, because there is nothing to ring.

Where the saunas actually are

Read that table down the last two columns and the pattern is total. Juist has 35 sauna properties, 34 of them photographed and none using the in-room token. Winterberg has 14, every single one using the in-room token and not one photographed. Essen: 19 saunas, 10 in-room, zero photographs. These are not different kinds of sauna — they are different kinds of tourist board. The North Sea island boards and the Saxon and Harz boards supply pictures and phone numbers; the Sauerland and Ruhr boards supply room-level attributes. Whichever you get depends entirely on where you are looking.

A hotel facility, except where it isn't

Across property types the house sauna behaves exactly as you would guess and the in-room sauna does the opposite.

One hotel in seven has a sauna; one holiday flat in sixty-one does. But turn it around and 160 of the 185 in-room saunas are holiday flats or holiday houses, against 13 in hotels. So the thing the token describes is real and is what you would expect it to be — a private sauna in a self-catering place. The vocabulary just happens to exist in only part of the country, and the rows that use it are the ones nobody can telephone.

What we don't know

• Nothing about the sauna itself. No type, no size, no temperature, no opening hours, no shared-versus-private flag beyond the two tokens, and no indication whether use is included in the price or charged for.
• Whether “in Zimmer/Appartement” means your room. In a property with several units the token is recorded against the property, not the unit. It may be one flat of twelve. This is the single most important thing to confirm before booking, and we cannot confirm it.
• We hold 1,413, not Germany's total. These are the properties in the DZT feed that answered the amenity question. Germany plainly has more saunas than this; the feed is heavily weighted to North Rhine-Westphalia, which supplies 20,581 of the 35,385 amenity-carrying rows.
• Wellnessbereich is not merged in. 399 properties record a wellness area, which may or may not contain a sauna. Merging the tokens would inflate the count by more than a quarter and we have not done it.
• Absence is not denial. 9,028 German rows carry no amenity data at all and are excluded from every rate above rather than counted as saunaless.
• None of these properties is bookable through us, and we have not stayed at any of them. Telephone the property.

Sources

Deutsche Zentrale für Tourismus open-data knowledge graph (destination.one), sourced from the regional tourism boards, licensed CC0 / CC BY / CC BY-SA / public domain depending on the record. Retrieved 17 August 2026: 44,413 active German records held, 35,385 with amenity data, 1,413 recording a sauna and 185 recording one in the room. Hero photograph: Hotel-Pension Peterhof, Juist, supplied by Kurverwaltung Juist through destination.one, CC BY 4.0. It is one of the 1,413 and carries the house sauna token.

More from the same catalogue

• Dog-friendly stays in the Sauerland — the same German register, and the same lesson about auditing the vocabulary first.
• Kaltern has 306 places to stay, and 107 are working farms — a register where the category word does all the work.
• Every property we hold on Juist — the destination page behind the best-documented column in the table above.