Terms & Conditions
Notice: These are the General Terms and Conditions of Atrium (Duetri's SaaS platform for property managers). For the corporate website
duetri.comterms, see the Legal Notice.
Version 1.0 · Issue date: 29 May 2026 · Status: in force
These Terms govern access to and use of the Atrium service provided by Duetri SL (in the process of incorporation). Acceptance of these Terms entails full acceptance of Annex I (Current Tariff) and Annex II (DPA).
Part I — Preliminary information
1 · Identification of the provider
The Atrium service is provided by Duetri SL (a company in the process of incorporation at the date of this document), with Tax ID [pending], registered office at [pending] and contact email contacto@duetri.com (hereinafter, "Duetri" or "the Provider").
While the company is in the process of being incorporated, contractual obligations will be assumed by its founding partners, who will transfer them to the company once incorporated without express novation by the Client.
2 · Definitions
| Term | Meaning | |---|---| | Atrium | Cloud-based SaaS platform for property managers, developed and operated by Duetri. | | Client | Natural or legal person who contracts Atrium, identified in the sign-up form or in the accepted commercial proposal. | | User | Natural person who accesses Atrium with individual credentials under the Client's account (office employees, owners or residents). | | Active dwelling | Real estate unit managed in Atrium during the billing period. Constitutes the unit on which the tariff is calculated. | | Client Data | Information that the Client or its Users enter in Atrium, including the personal data of owners, residents, suppliers and third parties managed by the Client. | | Current Tariff | Document "Atrium tariffs and conditions" in its most recent version published by Duetri, which forms an integral part of this contract as Annex I. | | DPA | Data Processing Agreement governing the processing of personal data by Duetri on behalf of the Client, which forms an integral part of this contract as Annex II. |
3 · Purpose
These Terms govern the Client's access to and use of Atrium, in the form of a cloud-based (SaaS) service, in exchange for the agreed tariff. They include service provision, basic support, hosting of Client Data, general platform updates and the other elements described in the Current Tariff.
Part II — Formation of the contract
4 · Acceptance and formalisation of the contract
The contract is concluded when the Client expressly accepts these Terms, which may be done by any of the following means:
a) Ticking the acceptance box during the online sign-up process, together with the signing of the SEPA mandate.
b) Signing a commercial proposal that incorporates these Terms by reference.
c) Beginning effective use of the service after receiving access credentials, which shall be considered unequivocal tacit acceptance.
Duetri shall retain evidence of acceptance and make it available to the Client on request.
5 · Professional or business capacity
The Client declares that it contracts Atrium as a professional, business or entity in the exercise of its economic activity (property management or related activities). Consequently, consumer and user protection regulations do not apply, nor do withdrawal or reflection rights provided for individuals.
Part III — Service and use
6 · Description of the service
6.1. Scope
Duetri provides the Client with the Atrium platform in SaaS mode, accessible via web browser over the internet, with the functionalities described in the Current Tariff and in the public product documentation.
6.2. Hosting
The servers providing the service are located in the European Union (Frankfurt, Germany). Client Data is stored encrypted at rest (AES-256) and transmitted encrypted in transit (TLS 1.2 or higher).
6.3. Availability, support and artificial intelligence
Duetri commits to a service level (SLA) of 99.5% monthly uptime and a first email support response time of 24 working hours, as set out in the Current Tariff.
Support is provided by email at contacto@duetri.com. The 24-working-hour commitment refers to the first contact from the Atrium team with the Client; the full resolution time of each incident depends on its complexity and is communicated to the Client at first contact.
The service includes a monthly allowance of artificial intelligence actions at no additional cost (50 actions per month by default). This allowance has the status of commercial goodwill and does not constitute a vested right of the Client: Duetri may modify, reduce or remove this allowance, as well as the price per additional action, with a minimum notice of 60 calendar days, as per the Current Tariff section 15.
Additional AI use, beyond the free allowance, is disabled by default and will only be activated through the express consent of the Client from the configuration of their account, subject to the price per action and the configurable monthly spending limit set by the Client. Details are set out in the Current Tariff sections 12 to 15.
6.4. Updates and evolution
Duetri may modify, extend or replace functionalities of the service to improve it, correct errors or adapt it to regulations. When a change substantially reduces the contracted functionalities, Duetri shall notify it at least 30 days in advance, and the Client may terminate the contract without penalty if the change harms them in a relevant manner.
6.5. Atrium as replacement for the management software
Atrium is conceived as the single integrated management system for the Client's office, including the administration of communities, accounting, communications, resident portal and integrated artificial intelligence. The simultaneous use of Atrium together with other pre-existing management software is not operationally supported, since it would force the Client to enter and maintain the same information in two different systems.
The incorporation of Atrium therefore implies the migration of data from the previous software, for which Duetri offers support in accordance with the conditions set out in the Current Tariff section 11.
7 · Accounts and credentials
The Client shall designate at least one administrator User, responsible for the internal management of the Users of their account. The Client shall be responsible for:
a) The confidentiality and custody of the credentials of its Users.
b) All activity carried out under its credentials, except in the case of illegitimate use notified to Duetri without delay.
c) Notifying Duetri of any unauthorised access as soon as it becomes aware.
Duetri may require the activation of additional security mechanisms (two-factor authentication, password policy) when it considers it reasonable to preserve the integrity of the service.
8 · Acceptable use
The Client undertakes to use Atrium in accordance with the law, these Terms and good faith, refraining in particular from:
a) Accessing or attempting to access data of other clients or breaching the security measures of the platform.
b) Introducing unlawful, offensive, fraudulent content or content that violates third-party rights.
c) Carrying out reverse engineering, decompilation, copying or resale of the software without express authorisation.
d) Using the service to send unsolicited commercial communications (spam) or for purposes other than property management and related activities.
e) Deliberately overloading the infrastructure through automations, load tests or non-functional traffic without prior agreement with Duetri.
Serious or repeated breach of this clause shall entitle Duetri to suspend the service without notice and, where applicable, to terminate the contract with immediate effect.
Part IV — Economic regime
9 · Tariffs, billing and payment
9.1. Tariff
The price of the service shall be that indicated in the Current Tariff accepted by the Client, calculated based on the number of Active dwellings managed, with the applicable monthly minimum. Prices do not include VAT or other applicable taxes, which shall be passed on when due.
9.2. Billing period
Unless otherwise agreed, Atrium shall be billed monthly in advance. If the Client has opted for prepaid annual payment, the invoice shall cover the twelve months following the start of the period.
9.3. Payment method: SEPA direct debit
Payment shall be made exclusively by SEPA direct debit. As part of the sign-up process, the Client shall sign a SEPA mandate authorising Duetri to debit the fees from the designated bank account. Duetri shall issue invoices in electronic format and make them available to the Client at least 14 calendar days before the charge, in accordance with the applicable SEPA B2B regulations.
The person signing the SEPA mandate on behalf of the Client declares that they have sufficient authority to bind the Client and to authorise charges on the indicated account.
The Client undertakes to keep its bank details up to date and to have sufficient funds in the direct debit account on the charge date.
9.4. Bank returns
In the event of return of the receipt for a cause attributable to the Client (insufficient funds, incorrect bank details, withdrawal of the mandate without justification or similar), Duetri shall pass on to the Client the bank charges actually borne for the return, within reasonable amounts according to the tariffs of its financial institution.
9.5. Variations due to additions and removals of dwellings
Additions and removals of Active dwellings shall be regularised in the following invoice, with pro-rata when applicable. In the annual payment mode, removals shall not generate cash refunds, but rather credit balance applicable to future invoices, in accordance with the Current Tariff.
9.6. Tariff updates
Duetri may update the Current Tariff with a minimum notice of 60 calendar days to the Client, communicated by email. Special Founder Client conditions shall be respected for the agreed period. If the Client does not accept the new tariff, it may terminate the contract without penalty within 30 days following the notification; after that period without express opposition, it shall be deemed accepted.
10 · Default and non-payment
In the event of non-payment or unregularised return of the SEPA receipt:
| Period from due date | Duetri's action | |---|---| | Day 1 | First email notice | | Day 7 | Second email notice | | Day 15 | Temporary suspension of access to the service | | Day 30 | Termination of the contract for cause attributable to the Client |
During suspension, Client Data shall be kept intact and the service shall be restored within a reasonable period after regularisation. Termination for non-payment shall not exempt the Client from paying outstanding amounts or those generated up to the effective date of cancellation.
Overdue amounts shall accrue late payment interest as provided for in Law 3/2004, on measures to combat late payment in commercial transactions.
Part V — Data protection
11 · Roles and GDPR regime
11.1. Roles
In the processing of Client Data that constitutes personal data (owners, residents, suppliers and others alike), the Client acts as Data Controller and Duetri as Data Processor.
11.2. DPA
The conditions of processing are governed by the Data Processing Agreement (DPA) signed as Annex II, which complies with the requirements of Article 28 of Regulation (EU) 2016/679 (GDPR). In the event of contradiction between these Terms and the DPA on personal data matters, the DPA shall prevail.
11.3. Data of the Client itself
The personal data of the Client and of its administrator Users collected by Duetri to manage the contractual relationship (billing, support and communications) shall be processed in accordance with the Privacy Policy published at duetri.com.
11.4. Subprocessors
Duetri uses technology providers to provide the service (hosting, database, transactional email, monitoring and, where appropriate, AI), all of which are subject to the guarantees required by the GDPR. The updated list of subprocessors forms part of the DPA and any addition or replacement shall be notified to the Client with reasonable notice.
Part VI — Property and confidentiality
12 · Intellectual property and ownership of data
12.1. Software
Atrium and all its elements (code, design, trademarks, documentation) are the exclusive property of Duetri or of the third parties that have granted the corresponding licences. Contracting the service grants the Client a non-exclusive, non-transferable right of use, limited to the duration of the contract, without transfer of intellectual property rights.
12.2. Client Data
Client Data is and shall remain the property of the Client. Duetri processes it exclusively to provide the contracted service, in accordance with the DPA, and shall not use it for its own purposes nor transfer it to third parties outside the service.
12.3. Aggregated and anonymous data
Duetri may generate and use statistical and aggregated data on platform use, provided that they do not allow the identification of the Client or of natural persons, for the purpose of improving the service.
12.4. Use of the Client's name as a commercial reference
The Client authorises Duetri to include its company name and, where applicable, its logo in the client section of its website, in commercial presentations and in similar materials, for the sole purpose of identifying Duetri as a provider to the Client.
The Client may revoke this authorisation at any time by written communication to contacto@duetri.com, without need for justification. Duetri shall remove the reference within a reasonable period, not exceeding 30 calendar days.
13 · Confidentiality
Both parties undertake to keep confidential the reserved information to which they have access in connection with the contract, and not to disclose it to third parties without authorisation, except where there is a legal obligation to do so. This obligation shall remain in effect during the term of the contract and for the two years following its termination.
Information that is public, was already lawfully known by the receiving party before its receipt, or is lawfully received from a third party without an obligation of confidentiality shall not be considered confidential.
Part VII — Warranties and liability
14 · Warranties and exclusions
Duetri undertakes to provide the service with the professional diligence customary in the sector, in accordance with the SLA set out in the Current Tariff. However:
a) Atrium shall be provided "as is" and "as available", without express or implied warranty that it meets particular purposes of the Client not covered in the service documentation.
b) Duetri does not warrant uninterrupted or completely error-free operation, nor the absolute absence of security incidents beyond its reasonable control.
c) Duetri shall not be responsible for the content entered by the Client or its Users, nor for the accuracy or legality thereof.
d) In the event of failure to meet the availability SLA set out in the Current Tariff, the service credit provided for in that Tariff shall constitute the sole and exclusive remedy of the Client, and no additional damages, lost profits or other compensation may be claimed for the same fact. The following shall not be counted as downtime for SLA purposes: scheduled maintenance announced 48 hours in advance, major incidents of major cloud providers affecting multiple clients globally simultaneously, force majeure events, failures in Client equipment or connection, or incidents arising from misuse or attacks against the Client.
15 · Limitation of liability
Without prejudice to liabilities that cannot be limited by mandatory law (wilful misconduct, gross negligence, personal injury or violation of fundamental rights):
a) The total accumulated liability of Duetri towards the Client for any cause related to this contract shall be limited to the total amount effectively invoiced and paid by the Client in the twelve (12) months preceding the triggering event.
b) In no case shall Duetri be liable for indirect damages, lost profits, loss of opportunity, loss of reputation or consequential damages.
c) This limitation shall apply regardless of the basis of the claim, whether contractual, extra-contractual or of any other nature.
Part VIII — Life of the contract
16 · Modification of the Terms
Duetri may modify these Terms to adapt them to regulatory changes, service evolution or reasonable improvements to the contractual framework. Modifications shall be notified by email with a minimum notice of 30 calendar days and shall be published on the website.
If the Client does not accept the modifications, they may terminate the contract without penalty before the date of entry into force thereof. Use of the service after that date shall be considered acceptance.
17 · Duration, renewal and termination
17.1. Duration
The contract shall enter into force on the date of acceptance and shall be provided without minimum commitment for any of the tariff modalities (Founder Client or standard). The only exception is the prepaid annual payment modality, in which the annual period contracted is understood to be fully committed by its very nature.
17.2. Renewal
Unless otherwise agreed, the contract shall be renewed automatically for periods equal to the initial one, except for cancellation with the notice indicated in the following clause.
17.3. Cancellation at the Client's initiative
The Client may cancel the service by communicating it to Duetri with a minimum notice of 30 calendar days, by email to contacto@duetri.com or from the platform itself.
The service shall end on the last day of the billing period in progress, provided that at least 30 calendar days elapse between the date of communication and that date. Otherwise, the cancellation shall take effect at the end of the following billing period.
Example (monthly payment): if the Client communicates cancellation on the 5th day of a month, the service shall end on the last day of that same month. If communicated on the 20th, the service shall end on the last day of the following month.
Cancellation does not entail penalty or regularisation to standard tariff of the months already enjoyed as Founder Client. The Founder Client price enjoyed during the time of use is fully retained, regardless of the total duration of the contractual relationship.
17.4. Termination at Duetri's initiative
Duetri may terminate the contract with immediate effect in the following cases:
a) Non-payment of more than 30 days, in accordance with section 10.
b) Serious breach of acceptable use (section 8).
c) Insolvency, bankruptcy or cessation of activity of the Client.
d) Serious risk to the security of the platform or to third parties.
17.5. Effects of termination
Termination for any cause shall entail the cessation of access to the service and the activation of the data return and deletion procedure provided for in section 18.
18 · Data return and deletion
18.1. Export
Upon termination of the contract, Duetri shall provide the Client with a standard export of its Data in CSV or XLS format during the following 30 calendar days, at no additional cost. Special exports (custom formats, transformations, additional assistance) may be quoted separately.
The export shall be conditional on the prior regularisation of any outstanding debt with Duetri.
18.2. Deletion
After the 30-day period from termination, Client Data shall be deleted from production systems. Backups shall be purged in accordance with the technical rotation cycle, within a maximum period of 90 days from termination.
The deletion deadlines and procedures are detailed in the DPA.
Part IX — Final provisions
19 · Force majeure
Neither party shall be liable for the breach of its obligations when this is due to causes of force majeure or fortuitous event (natural disasters, armed conflicts, decisions of public authority, serious infrastructure incidents beyond its reasonable control or other similar events). The affected party shall communicate it to the other without delay and the situation shall be extended for the strictly necessary time.
If the force majeure situation extends for more than 60 days, either party may terminate the contract without penalty.
20 · Assignment
The Client may not assign this contract to a third party without the prior written consent of Duetri.
Duetri may assign the contract to a company of the same group or as a consequence of a corporate operation (merger, spin-off, sale of business unit), notifying the Client.
21 · Notifications
Notifications between the parties arising from the contract shall be made by email:
- To Duetri: contacto@duetri.com
- To the Client: the address provided at sign-up or subsequently communicated in writing.
The notification sent to the current address shall be deemed effective, unless proof to the contrary of technical failure attributable to the sender.
22 · Governing law and jurisdiction
These Terms are governed by Spanish law.
For the resolution of any dispute related to the contract, the parties expressly submit to the Courts and Tribunals of the registered office of Duetri SL, waiving any other jurisdiction that may correspond to them, except as required by mandatory law.
23 · Acceptance
The Client declares that it has read and understood these Terms, its Annex I (Current Tariff) and its Annex II (DPA), and expresses its express acceptance through any of the means provided in section 4.
Annexes to the contract
- Annex I — Current Tariff: document "Atrium tariffs and conditions" in its current version, published at
duetri.com/legal/tarifas. - Annex II — Data Processing Agreement (DPA): attached document, accessible at
duetri.com/legal/dpaand binding from the acceptance of these Terms.
Duetri SL (in the process of incorporation) · Contact: contacto@duetri.com · Web: https://duetri.com