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Concierge AI Agent — 24/7 Lead Qualification & Bookings

Concierge AI Agent — 24/7 Lead Qualification & Bookings

A 24/7 concierge agent that qualifies inbound leads and books property viewings across WhatsApp and Zillow, with full HubSpot integration so the sales team picks up the conversation where the agent left off.

01. Challenge

Leads arrived around the clock from Zillow, WhatsApp and the website. Sales agents could not respond in minutes, especially at nights and weekends, and the best leads were lost to faster-responding competitors.

Generic chatbots could not handle the nuance of real property questions or schedule viewings across the team calendars.

02. Solution

A conversational AI agent that engages every inbound lead within seconds, qualifies intent (budget, neighbourhood, timeline), and answers common property questions from the listing data.

The agent books viewings on the right agent calendar and pushes the full transcript and lead score into HubSpot. Human agents are looped in for high-intent leads and any sensitive topic.

03. Results

  • < 60 secResponse time
    First reply to inbound leads, 24/7
  • +40%Bookings
    Increase in scheduled viewings vs prior baseline
  • 24/7Coverage
    Nights, weekends and holidays handled autonomously

04. Constraints

  • US real-estate market — TCPA-compliant messaging, no spammy patterns
  • Conversations span WhatsApp, Zillow inbox and SMS — must look like one agent
  • Must integrate cleanly with the existing HubSpot pipeline, not replace it
  • Hand-off to a human agent must be seamless, with full context preserved

05. Architecture

A LangGraph-based agent ingests inbound messages from WhatsApp Business API, Zillow inbox and the website chat through a unified inbox layer.

Retrieval over the active listings grounds property answers. A tool layer wires the agent into HubSpot (contact create/update), Calendly (viewing slots) and a human-handoff queue.

Every conversation is summarised back into HubSpot as a structured lead record.

06. Tech Stack

PythonFastAPILangGraphOpenAI GPT-4oWhatsApp Business APIZillow inboxTwilio SMSHubSpot APICalendly APIPostgreSQLRedisVercelAWS

Project Info

  • Client:The Kingswell Group
  • Service:AI Agents
  • Timeline:8 weeks
  • Industry:realestate