The data you need. In the AI you use.

Connect The Condo Book Project to Claude or ChatGPT. Research offering plans, compare buildings, and analyze recorded sales, without leaving the chatbox.

Connect to Claude or ChatGPT →See pricing

Try

The Condo Book Project

A mock-up of ChatGPT using our connector. The answers are real, read live from our data for the address above.

How it works

Connect once. Ask anything.

The Condo Book Project connects to Claude and ChatGPT through MCP, the standard way AI assistants reach outside data. Every answer comes with the plan pages and records behind it.

Subscribe
Choose Pro, monthly or yearly. See pricing
Connect
Add us as a connector in Claude or ChatGPT.
Ask
Ask about any NYC condo in plain English.

Get started →

Cited by ChatGPT

The trusted source on NYC condo buildings.

AI assistants already cite us, one building at a time. Connected, they get all 8,000+ offering plans at once, so they can compare buildings, spot patterns across neighborhoods, and answer questions no single plan can.

Same question

What refrigerator does The Florian have, and what’s the working capital contribution?

Without The Condo Book Project

Refrigerator: Sub-Zero, according to the Douglas Elliman listing on StreetEasy. It also lists a Sub-Zero wine cooler. StreetEasy
Working capital contribution: I couldn’t verify the amount from a source outside Condo Book. The sponsor directs buyers to the offering plan, CD24-0326, for the complete terms. I wouldn’t guess the amount. thefloriannyc.com

With The Condo Book Project

Refrigerator: Sub-Zero in every apartment (DET3050CI/L), with a larger refrigerator (DET3650CI/L) in two- and three-bedroom homes.
Working capital contribution: Two months’ common charges, payable at closing. For example, $1,000/month in common charges means a $2,000 contribution. A Complete Buy…

Real answers from an AI assistant.

Use cases

What could you do with 8,000 offering plans at your fingertips?

Use it your way. Ask a question, follow up, build a comparison, go deeper. It fits into how you already work, so you can move faster with reliable, accurate data.

I’m

Show me all condos in Manhattan with a pickleball court.

Mock answers, with figures from our data. Files shown are examples of what your assistant can put together.

The data

Explore Our Data

An offering plan holds far more than a price list. From the plans we pull the line-by-line operating budgets, unit mix and sizes, finishes and appliance brands, amenities, and the people behind each building, from developers and architects to attorneys, managers and lenders.