This English translation is provided for convenience. The French version prevails.
Website publisher
The kotelys.fr website and the Kotelys software are published by Lucas Bourdeau EI, a French sole trader (micro-entreprise), trading as Kotelys.
- SIREN: 131 599 581 — SIRET: 131 599 581 00017 — registered with the French National Business Register (RNE)
- EU VAT identification number: being assigned
- Address: 12 allée Lucie Aubrac, 85430 Aubigny-Les Clouzeaux, France
- Telephone: +33 6 24 56 61 02
- Email: contact@kotelys.fr
- Publication director: Lucas Bourdeau
Hosting
The website is hosted by OVH SAS, 2 rue Kellermann, 59100 Roubaix, France.
The Kotelys installation files are hosted by GitHub, Inc., 88 Colin P. Kelly Jr. Street, San Francisco, CA 94107, United States.
Intellectual property
The Kotelys name, its logo, the software, and the text and images of this website are the property of Lucas Bourdeau. An application to register the trade mark KOTELYS has been filed with the French National Institute of Industrial Property, INPI (application no. 5303588). The software and this website are protected by copyright (French Intellectual Property Code); their source code has been deposited with a dated record (e-Soleau). Any reproduction, copying or decompilation without written permission is prohibited, except where permitted by law. The drawings shown on this website are fictitious, unless stated otherwise; the sample drawing for the electrical package is a real building, published with its author's permission.
The Montserrat typeface is used under the SIL Open Font License.
Liability
Kotelys helps to measure on drawings; it does not guarantee the quantities obtained. Users check the take-offs they produce before relying on them, in particular to set a price. The information on this website is given for guidance only and may change with the software.
Personal data
See the Privacy page.
Last updated: 12 November 2026.