Less work.
Invoices, bookings, reminders and minutes are prepared by SYNDEXUS. You simply approve.

Property management · Luxembourg
SYNDEXUS runs your residences. All you do is decide.
The film shows the sample residence “Les Tilleuls” – no real data.
Invoices, bookings, reminders and minutes are prepared by SYNDEXUS. You simply approve.
Every invoice, every statement, every resolution is in its place – with source and date.
Every owner sees their balance in the portal. Fewer calls, fewer questions.
Takeover
You take over a residence from the previous manager and upload everything, unsorted, even as a ZIP. The AI recognises and files each document; invoices land in the inbox. SYNDEXUS then checks the documents against each other: deed against unit list, multiple versions, missing minutes. Whatever is missing or inconsistent appears on a gap list – which becomes a letter to the previous manager.
Invoices
PDF or phone photo: SYNDEXUS reads the supplier, number, amounts and line items and selects the right contract. It then checks against the contract, duplicates and approval limits. You see at a glance whether everything is correct.
Bank
The statement from your e-banking goes in, and SYNDEXUS matches each payment to the owner or the invoice. Anything that doesn’t fit is shown to you. Current account and works fund stay clearly separate.
Reminders
SYNDEXUS spots unpaid amounts and prepares the right reminder level – in the owner’s language, with the French version from the formal notice onwards. Nothing goes out without your approval.
General meeting
Agenda with the correct majorities, notices in each owner’s language, scanned proxies, attendance sheet and vote counting by thousandths. At the end, the minutes go into the register of resolutions.
Portal
Account balance, notices, minutes and residence documents – around the clock, on the phone. Everyone sees only what concerns them.
Security
The database is hosted in a data centre in Frankfurt, encrypted in transit and at rest, in line with the GDPR. Sign-in only with a second factor, every change is logged. To read documents, SYNDEXUS uses the AI service of Anthropic (USA), which does not use your data to train its models. The AI suggests, you decide.
The app speaks German, French, Luxembourgish, Portuguese, Italian, English and Dutch. Letters go out in the language each owner has chosen.
Write to us. We’ll show you SYNDEXUS using the sample residence.