Frequently asked questions

It is the disclosure document a sponsor files with the New York State Attorney General before selling condominium units. It describes the building, the units offered, the prices, the budget, the declaration and bylaws, and the sponsor's obligations. Changes after filing are made through numbered amendments.

It lets you search the text of filed offering plans and amendments across projects at once, and shows the matching language with the document and page it came from. Every result links back to the Attorney General's record so you can check the original.

Yes. There is no account and no sign-up.

No. Open Book is an independent research tool run by Half Ave Company LLC. It is not affiliated with, endorsed by, or acting for the Attorney General's office or any government agency.

Write it the way you would ask a person, for example Queens condos under 20 units with parking spaces. Open Book pulls out the borough or neighborhood, the unit count and the parking count as filters, and searches the plan text for the rest. The line under the search box shows how your question was read.

Yes. Put an exact phrase in double quotes, like "roof rights". Use OR between words to match either one, like doorman OR concierge.

When you search for words, plans with the most matching pages come first. When you only filter (for example by borough and unit count), the newest accepted plans come first. Up to 60 plans are shown.

Green dots are plans whose documents can be searched page by page. Outlined dots are plans we only have the Attorney General's summary record for. Orange dots match your current search.

Open Book searches the plans and amendments currently indexed here. The Attorney General has not posted documents for every filing, and some posted documents are not yet indexed. A missing result does not mean a feature or project does not exist.

The plan has amendments on file that Open Book has not read yet. A later amendment can change prices, unit counts, amenities, dates and more, so check the latest amendment on the Attorney General's site before relying on what the original plan said.

No. Plans describe what was offered at the time of filing. They do not establish what is currently available for sale. Check the original filing, relevant amendments, and current project information.

From the Attorney General's plan data. They reflect what the plan record says and may not match the building today.

Many plans are scanned PDFs, and the text is read from the page image. Tables, stamps and handwriting can come through imperfectly. The page reference lets you check the original.

3D massing drawings made from NYC Building Footprints, with the plan's building in green. They show shape and height, not what the building looks like.

Press Download plan. It opens the plan's Documents tab on the Attorney General's site, where you tick the files you want and choose Download. Open Book does not host the PDFs.

Copies can be requested from the Attorney General's office through a Freedom of Information Law (FOIL) request.

Email hello@halfave.co with the plan ID (for example CD260081, shown on each result) and what looks wrong.

Write to hello@halfave.co. Open Book shows public filings as the Attorney General posted them, so we can fix how we read or display a document, but the filing itself can only be changed through the Attorney General.