Integration Partner · Marketing/ILS
Apartments.com + Fortress OS
Send unit availability to Apartments.com from Fortress OS, per property, without maintaining a second listing.
Updated · 3 min read

What is the Apartments.com + Fortress OS integration?
Apartments.com is one of the largest rental listing networks in the United States. Fortress OS connects to it as an internet listing service, switched on per property, so the units you are marketing reach the network without somebody maintaining the listing by hand.
Key takeaways
You enable it per property under ILS integrations.
Availability comes from Fortress, so the listing shows the units you have.
A leased unit stops sitting advertised for another week.
How does Apartments.com work with Fortress OS?
Apartments.com sits in the ILS integrations section of a property's setup, and you switch it on for the properties advertising there. Availability then comes from the same system your leasing team works in every day.
What data flows between the two?
Unit availability and marketing detail flow from Fortress to Apartments.com. When your team leases a unit in Fortress, the listing works from that record.
Who handles the setup?
Our integrations team handles documentation exchange, API keys, and end-to-end testing. Most Apartments.com connections go live in a few weeks. You can request a setup any time.
Why should you connect Apartments.com to Fortress OS?
You pay twice for a stale listing. Once for the advertising, and again in the time your leasing team spends telling prospects the unit in the ad is gone. Feeding the listing from your own availability stops both.
What changes once you connect Apartments.com?
Same marketing/ils tool. Different day-to-day for your team.
| Daily task | Without the integration | With Fortress OS + Apartments.com |
|---|---|---|
| Publishing availability | Someone updates the listing portal by hand, per property, per unit. | Availability comes from the system already tracking it. |
| A unit that just leased | It stays advertised until somebody notices. | The feed works from the lease your team recorded. |
| Marketing several properties | The same manual update, multiplied by the portfolio. | You enable the ILS connection on the properties that need it. |
| Prospect calls about a gone unit | Your team apologizes, then goes to fix the listing. | Your team takes fewer of those calls. |
Tags
- Apartments.com
- Apartments.com integration
- Marketing/ILS
- Fortress OS
- integration
- property management software
- affordable housing
Frequently asked questions
Quick answers about how Apartments.com and Fortress OS work together. Don't see your question? Ask us →
Is this enabled for every property?
No. Apartments.com sits under ILS integrations in a property's setup and you enable it per property, so you advertise where you mean to.
Do we still need an Apartments.com account?
Yes. Your advertising relationship and spend stay with Apartments.com. The connection to Fortress OS is part of Fortress.
What gets sent to the listing?
Unit availability and marketing detail from Fortress, so the listing works from the same availability your leasing team sees.
Can we use more than one listing service?
Yes. You configure ILS connections per property, so a site can advertise on more than one network.