Privacy policy
Last updated: 13 November 2026
Samsa Labs AG, Pilatusstrasse 18, 6003 Lucerne, Switzerland, is responsible for the processing of data on this website. Please send data protection enquiries to dpa@samsalabs.com.
This website requires no login and uses no advertising services. We set cookies only to remember your choice in the cookie notice and, if you agree, for Google Analytics (see “Cookies and audience measurement”). Settings such as language, colour mode or a tax profile you enter yourself (household, income, assets) are at most stored locally in your browser and do not leave your device.
We process personal data that you give us yourself only when you write to us, submit a property through the “List a property” form or send us your contact details after a property valuation. What applies then is set out below under «Listing a property» and «Valuing a property».
When you access the website, technically necessary data are processed, namely your IP address, information about your browser and device, and the time of access. The website is delivered via Cloudflare; Cloudflare processes these data on our behalf for delivery and for protection against abuse, and processing abroad is possible.
So that the map, weather and listings can be displayed, your browser loads content directly from third parties. In doing so, these parties necessarily learn your IP address and technical information about your browser:
| Recipient | Purpose | Location |
|---|---|---|
| Federal Office of Topography swisstopo (geo.admin.ch) | Maps and aerial images | Switzerland |
| Open-Meteo | Current weather | Switzerland, servers in Europe |
| transport.opendata.ch (Verein Opendata.ch) | Public transport departures, only if you tap a stop | Switzerland |
| Websites of the providers and portals (flatfox.ch, neho.ch, engelvoelkers.com, propertyowner.ch, ginesta.ch, immoseeker.ch, homegate.ch, newhome.ch, immoscout24.ch, immomigimg.ch, b-cdn.net, apimo.pro) | Images of the listings | Switzerland, depending on the provider also abroad |
| Google Ireland Limited (Google Analytics) | Audience measurement, see “Cookies and audience measurement” | Ireland; processing in the USA possible |
Apart from the recipients named here and in the following sections, we do not pass on any personal data. If you follow a link to an original listing or to Google Maps (Street View), the privacy policy of the respective website applies.
Under the Swiss Federal Act on Data Protection (FADP), you have the right to information about, correction and deletion of your data. Insofar as the EU General Data Protection Regulation (GDPR) applies, the processing is based on our legitimate interest in operating this website (Art. 6(1)(f) GDPR), unless the following sections state otherwise. Otherwise, the privacy policy of Samsa Labs AG applies.
Cookies and audience measurement
We would like to understand how Kantello is used, for example which pages and listings are viewed, in order to improve the service. For this we use Google Analytics 4. The provider for Switzerland and the European Economic Area is Google Ireland Limited (Ireland). It processes the data on our behalf; data may also reach Google LLC in the USA. Google LLC is certified under the Swiss-U.S. and the EU-U.S. Data Privacy Framework. More information: Google’s privacy policy and How Google uses data from websites.
Your choice. On your first visit, a notice asks whether you agree to the measurement. Without your agreement, measurement with cookies stays switched off. You can reopen the notice at any time through “Cookies” in the footer. There you can withdraw your consent with effect for the future. When you withdraw, we delete the Google Analytics cookies for this website and reload the page.
What happens before you decide. The Google tag is loaded on every page, but only after your first interaction with the page or a few seconds after loading. It runs in Google Consent Mode v2, in which all consent signals are initially set to “denied”. As long as you have not agreed, Google Analytics sets no cookies and receives no identifier by which you could be recognised. Google then receives only cookieless signals: the address of the page viewed, the consent status, a random number per page view, the time, the previously visited page and, as with any request on the internet, your IP address and details of your browser and device. Google uses these signals for aggregated statistical estimates.
After you agree, Google Analytics sets the cookies _ga and _ga_<ID>. With them it distinguishes returning browsers and measures page views, time spent, device, browser and approximate location. The location is derived from the IP address, which Google Analytics 4 says it does not store. We use no advertising features: Google Signals and the link to Google Ads are switched off, and the consent signals for advertising always remain “denied”. Google deletes data about individual visits after 14 months; aggregated statistics that do not relate to individual persons are kept longer.
Cookies at a glance
| Name (origin) | Purpose | Duration |
|---|---|---|
kt_consent (this website) |
Necessary: stores your choice in the cookie notice and when you made it, also if you decline | 182 days from your last decision |
_ga, _ga_<ID> (Google Analytics) |
Audience measurement, only after you agree | up to 2 years |
Your choice is stored only in your browser. We keep no record of consents on our servers.
Legal basis. Under Swiss law, this section informs you about the processing and about how you can refuse it. Where the GDPR applies, measurement with cookies is based on your consent (Art. 6(1)(a) GDPR). Loading the Google tag before you decide and the kt_consent cookie are based on our legitimate interest in a working website that can be evaluated statistically (Art. 6(1)(f) GDPR).
Listing a property
Last updated: 13 November 2026. The German version is authoritative.
When you submit a property through the “List a property” form, we process personal data that you give us yourself. The controller is Samsa Labs AG, Pilatusstrasse 18, 6003 Lucerne, Switzerland. Send privacy questions to dpa@samsalabs.com and everything else to kontakt@kantello.ch.
What data we process
- Contact details: name and email address (both needed so we can reach you) and, if you provide it, phone number.
- Property details: address, property type, key facts such as rooms, area and price, and the title and text of the listing.
- Photos: up to 20 images. They are reduced and re-saved in your browser, which removes embedded information such as location and camera.
- The language of the form, and the time and version of your consent.
We do not store your IP address with the submission. It is used only briefly to limit abuse of the form. Until you submit the form, your entries and photos stay in your browser.
What we use the data for
We use the data only to contact you and to prepare your listing. We publish nothing and pass nothing on to portals or prospective buyers without your express agreement in each case. We do not use the data for advertising and make no automated decisions about you.
Processing is based on your consent, which you give when you submit the form. You can withdraw it at any time without giving reasons.
Draft written with artificial intelligence
If you ask for a draft text, we send up to four of your reduced photos and the key facts of the property to the AI service Claude, provided by Anthropic PBC (USA). We do not send the address, your name or your contact details. We keep nothing from this step ourselves. Anthropic processes the data on our behalf, does not use it to train its models under its commercial terms, and deletes it after a short time. By clicking the button for the AI draft, you consent to this transfer. The draft is a suggestion: please check and correct it before you submit. You can also complete the form without this feature.
Where the data is kept and who receives it
| Recipient | Task | Place of processing |
|---|---|---|
| Cloudflare, Inc. | Storing the submission and photos in non-public storage (Cloudflare R2), running the form | Storage in the European Union; operation possible worldwide |
| Google (Google Workspace) | Mailbox for our email correspondence with you, when we contact you or you write to us | Europe and worldwide, including the USA |
| Anthropic PBC | Draft text, only if you use the feature | USA |
These companies process the data on our behalf and on our instructions. Where data reaches countries without adequate data protection, in particular the USA, we rely on the Swiss-U.S. Data Privacy Framework if the company is certified under it, and otherwise on the standard contractual clauses recognised by the Swiss Federal Data Protection and Information Commissioner (FDPIC). Within our company, only the people looking after your listing have access to your submission. Transmission to us is encrypted.
How long we keep the data
| Data | Deletion |
|---|---|
| Entries you do not submit | not stored by us |
| Submission with contact details, property details and photos | automatically 90 days after receipt, if no mandate follows |
| Deletion through your personal delete link | immediately |
| Email correspondence with you about your submission | no later than 30 days after the submission is deleted |
| Published listing | for as long as it is published at your request; after withdrawal, deletion within 30 days |
| Records of a mandate you give us | according to statutory retention periods, usually ten years; photos and listing text 30 days after the mandate ends |
After you submit, we show you a personal delete link. With it you can delete your submission and photos yourself at any time, immediately. Please keep the link. Without it, a message to dpa@samsalabs.com is enough.
Photos and third-party rights
Please upload only photos that you are allowed to use and that show no recognisable people, number plates or personal documents. The rights to your photos and texts remain with you.
Your rights
You can request information about your data, have it corrected or deleted, request it in a common electronic format, and withdraw your consent. Withdrawal applies for the future. We usually reply within 30 days. You can also contact the Swiss Federal Data Protection and Information Commissioner (FDPIC, edoeb.admin.ch) or, in the EU, the supervisory authority where you live. Where the EU General Data Protection Regulation applies, the legal basis is your consent (Art. 6(1)(a) GDPR).
Valuing a property
Last updated: 13 November 2026. The German version is authoritative.
The guide value on the “Property valuation” page is calculated by your browser. The details of your property (type, living area, rooms, year built, condition) do not reach our servers for this. Your browser loads the address search and official details about the building and its location (for example year of construction, parcel and building zone) directly from geo.admin.ch (Federal Office of Topography swisstopo, Switzerland). That office learns your search entry, the address you select and your IP address in the process.
We store personal data only if you send us your contact details after the guide value. We then process your name and e-mail address, your telephone number if you give it, the address and key facts of the property, the guide value shown, the language of the form, and the time and version of your consent. We use these data solely to contact you about a possible sale of your property and about Kantello’s services. We do not send you a newsletter and do not pass the data on to brokers, banks or other companies for their own purposes. Processing is based on your consent. You can withdraw it at any time without giving reasons.
We do not store your IP address with the request. The place of storage, the recipients, the automatic deletion after 90 days, your personal deletion link and your rights are as set out under «Listing a property». The AI service described there is not used for the valuation; Anthropic receives no data in this process.