How to Find Building Information and Data Sources for a Building Attribute

Learn how to find detailed information about a specific building, including the number of dwelling units and the sources of this data. This guide explains how to use building IDs, view details, and understand data sources like NYC Local Law 84-2022.

October 16, 2025 By Robin Neri

In this guide, we'll learn how to find detailed information about a specific building, including where the data for each attribute comes from. We will focus on understanding the source of the number of dwelling units for a building and how to view the different sources and their scores.

You will also see how to adjust the table layout to display the information you need.

Let's get started

This guide explains how to find information about a specific building. It also covers the sources of data for each attribute. To view a building, click on its building ID. This building features multifamily housing, a specific building footprint, and a certain number of dwelling units. We want to find out where the number of dwelling units for this building comes from.

To do this, click the building ID, then select View Details.

Go to Question · Metabase

Step #2: Click on the building ID — Click on the building ID

Step #3: Click on "View details" — Click on "View details"

Each attribute has its own table, so access the "Attribute - Num Dwelling Unit" table

This table has more details about the number of dwelling units for this building. Optionally, edit the column layout and format.

Step #6: Select columns here — Select columns here

View the Building ID, the value, and the number of dwelling units. We have identified which source was selected for this. In this case, it is New York City Local Law 84-2022. We can see all the different sources for this building.

It was found in six different sources, with a range of values. The system chose this one because it had the highest total score among all sources for this building. The total score is calculated by multiplying several components. These include the type of source, how well it aligns with other sources, whether the source was a guess or based on an actual value, and if it was estimated. It also considers whether the data is from a single building or part of a multi-building data source.