A property-search copilot over a large listings catalogue. Custom RAG pipeline, citations, and a strict no-hallucination guarantee shipped to public users.

Category: SI project
Client: Property marketplace
Year: 2025
Sector: Real Estate
What we did: RAG, LLM Apps, Product Design

Realty One RAG

The challenge.

Buyers searching a large catalogue with keyword filters missed the homes they actually wanted, and any SI answer risked inventing facts.

Realty One RAG

Our approach.

A custom RAG pipeline with hybrid retrieval and re-ranking grounds every answer in real listings, with inline citations and a strict no-hallucination guarantee enforced by output checks.

Realty One RAG

The outcome.

A conversational search shipped to public users that surfaces the right listings and never makes up a price or feature.

Built with

Tech stack.

Tech stack

GPT-4o
pgvector
Cohere Rerank
Next.js
Elasticsearch

What we did

RAG
LLM Apps
Product Design

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