---
title: Affordable Housing Preservation Database Case Study
description: Learn how a large U.S. county used a preservation database and rental registry in tandem to preserve thousands of affordable housing units.
---

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# Addressing an affordable housing crisis with a modern approach to preservation

![thumbnail of preservation database case study](https://resources.3disystems.com/hs-fs/hubfs/3Di_preservation%20database%20thumbnail_v1_09-03-21.png?width=200&name=3Di_preservation%20database%20thumbnail_v1_09-03-21.png)

In this case study, we’ll share the story of how officials in one large U.S. county took action to save thousands of affordable housing units—and the powerful software that made it possible. 

- Learn how officials were able to flag more at-risk units by viewing all properties at the parcel level through an intuitive map interface. 
- Discover why a consolidated preservation database makes it easier to collect, store, and communicate important information across agencies. 
- See why the additional insight that a rental registry provided was key to avoiding a housing crisis. 

### Where should we send your case study?

### Eliminating Silos

See how this county combined housing data from federal, state, and local sources in a single database for the first time.

### Improving Visibility

Discover how this county put parcel-level affordable housing data on the map – literally – and how this intuitive visibility empowers stakeholders.

### Preserving Affordable Housing

Learn how this solution is helping county officials stay one step ahead and reverse a dramatic decline in affordable housing stock.

“It’s about maintaining our limited stock of affordable housing in the midst of a crisis. Having this visibility now through the Preservation Database created by 3Di allows us to always remain one step ahead.”

- Development Authority Analyst

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