Gmail Real Estate Lead Triage: Gemini + OpenAI + Sheets CRM

Automatically triage real estate Gmail inquiries and reply with tailored options

This n8n workflow monitors your Gmail inbox for real estate leads, uses Google Gemini (with OpenAI fallback) to draft a structured HTML response, and pulls matching listings from your Google Sheets CRM—then sends the reply back to the sender.

What this workflow does

• Polls Gmail every minute for up to five new real estate inquiry emails.
• Extracts the email content and sends it—along with thread context stored in Redis—to a LangChain agent powered by Google Gemini.
• Falls back to OpenAI if Gemini isn’t available or fails, ensuring continued operation.
• If the email requests options or includes criteria (e.g., region, budget, bedrooms), the agent searches your Google Sheets properties tab for matching listings.
• When the message reflects genuine buying or renting interest, the workflow appends or updates a lead in your Google Sheets CRM, matching records by email address.
• Generates a structured HTML reply that answers questions, asks clarifying details, and suggests next steps like scheduling a visit.
• Sends the reply via Gmail using the original email’s subject line.

Use cases

• Real estate teams who want fast, consistent responses to inbound Gmail inquiries.
• SaaS operators running a Google Sheets-based listing and lead management process.
• Automation engineers building an AI-assisted real estate lead triage pipeline with CRM updates.

Technical details

• n8n Gmail trigger + Gmail OAuth2 (read incoming messages, send replies).
• n8n-nodes-langchainagent using Google Gemini with n8n-nodes-langchainlm OpenAI fallback.
• Redis memory to maintain email/thread context across messages.
• Google Sheets tool to search listings in a properties tab and update leads in a CRM/Leads tab.
• References a “sticky note” node configuration pattern as part of the workflow setup.

Set up OAuth2 for Gmail and Google Sheets, configure Gemini/OpenAI model names, and connect Redis to enable AI-driven, data-backed lead triage.