Aleksei Sukmanov runs A StandArt Real Estate out of Berlin and Dubai. International buyers write in German, English, and Russian — and expect answers in under a minute. Here's how we built it.
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Three weeks from setup to first booked viewing. Maria handles the first contact in German, English, and Russian, and the broker just shows up.
Inquiries came in via ImmoScout24, Immowelt, the website, Meta ads, WhatsApp, phone, and email — seven channels, three languages, one inbox no human can read 24/7. Time-to-contact sat at 4 to 24 hours. For high-end buyers talking to three brokers in parallel, that's often the point they move on.
First call, then two weeks of setup: define the Russian-language register for high-end clientele, lock down scheduling logic for the Berlin↔Dubai time gap, set up calendar sync with Aleksei's existing tools. Every integration tailored to Aleksei's actual channels — no off-the-shelf SaaS template.
A custom AI CRM with Maria at the core: detects language automatically, qualifies leads over voice and WhatsApp, offers two concrete viewing-time options, sends follow-up newsletters with matching listings, picks up calls when Aleksei isn't reachable. Source code and data ownership stay with Aleksei.
Aleksei runs viewings instead of managing his inbox. Maria runs 24/7, replies in the right register, only puts qualified leads in the calendar. Weekly 15-minute check-in with us for tone tuning and new listing briefings. Quarterly review for larger roadmap items.
Down from 4–24 hours. Maria answers every inquiry in under a minute — weekday, weekend, or middle of the night.
German, English, Russian. Maria detects the language from the first sentence and replies in the right register. No DeepL plugin, no language add-on.
Inquiries from Dubai at 3 a.m. Berlin time get the same treatment as Berlin calls on a Wednesday afternoon — qualified, answered, booked in the calendar.
Seven separate incoming channels now feed one central pipeline. Lead scoring, language tags, status updates in one place instead of spread across three apps.
Most German broker CRMs (onOffice, Propstack, FlowFact) are built for German-only brokerages — Russian is a translation plugin or landing-page add-on, not the voice logic itself. For Aleksei's clientele, where some speak only Russian, that was a hard break.
The ElevenLabs voice plugs directly into CRM logic — Maria knows Aleksei's calendar, his current listings, and each lead's language preference. Classic CRMs bolt voice on via Placetel or 3CX; the AI then sits between two systems instead of at the core.
The source code belongs to Aleksei. If he wants a different developer on it tomorrow, he can — no vendor lock-in, no monthly licence per broker. Classic SaaS scales the bill with every seat.
This case study is just one data point. If you're in compare mode, we've written honest side-by-side breakdowns of the major DACH providers:
Scout24 subsidiary, 3,000+ customers, €99/seat/month. Where Propstack fits better, where it doesn't.
Established since 1985, Scout24 since 2014. Who FlowFact is right for, who it isn't.
onOffice, Propstack, FlowFact, VintAI, Nestermind, RealtyRocket, immowelt Suite — 2026 snapshot. (German)
30 minutes on the phone with Michal — the developer who built Aleksei's system. If your setup fits us, we'll say so. If it doesn't, we'll say that too.
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