Della OS:
Smarter Operations. Real Savings.

Della OS is the unified smart building platform built for integrators, operators, and residents.
Della OS

Simplify property management and empower integrators with one seamless platform.

Della OS, an award winning property operating system, transforms how portfolios manage energy, operations, and efficiency, delivering measurable results, not just promises.

Della OS
at a Glance

Create a fully digital twin in minutes, seamlessly onboard or offboard residents with just a few clicks, and manage everything from access control to smart locks and thermostats, all through one powerful system.
Mission Control
For Integrators
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Mission Control
For Integrators
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Mission Control
For Integrators
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Della OS

Della’s Resident Operating System

We’re building the operating layer that unifies resident and property team workflows, systems, and services into one platform. It turns building signals into operational action.
Della OS

Della OS is the Platform that Turns Building Signals into Services and Experiences.

Della OS by the numbers
A result from a live property, and what the platform connects today.
35%
Lower energy costs at Regius Square, a Della OS property with 124 units.
5
PMS platforms fully integrated:
Yardi, Entrata, RealPage, AppFolio and ResMan.
60%
Of Della OS capabilities run with no new building hardware.

Ask for a Demo

Explore Della OS capabilities firsthand. Request a demo to see how we can transform your property management experience with our innovative solutions.
Built for Scale, Designed for Ease
Whether you're managing 10 units or 10,000, Della grows with you, with no extra complexity and no extra apps.
Resident Ready,
Operator Approved
Onboarding in one click, instant service activation, and a seamless resident experience from move-in to move-out.
Plug and Play
for Integrators
Designed to simplify installations and integrations across access control, smart locks, HVAC, and more, with no rewiring needed.
Modern Buildings Start with Modern Infrastructure
One Dashboard.
Total Control.

Building an Integrated
Partner Ecosystem

What Our Users Say

We succeed when our properties do.

“Della is the solution to all of your building problems and then some. I am a property manager and have used many different interfaces to manage numerous buildings, and I have never come across something so intelligent. It is extremely easy to use, and the app is so clean and user friendly.”

KM

Property Manager

“If you're like me, you probably never write reviews but still appreciate reading them. Well, Della impressed me so much that I had to make an exception. I'm not kidding. I was actually considering moving, but then Asset Living, our new property manager, brought in Della, and it completely transformed my living experience. My building and my unit feel revitalized in a way I didn’t expect. I've always been frustrated by how incredible buildings often lack basic tech features, like having a luxury car with an analog radio. Finally, someone did something that genuinely makes a difference. Everything just works, and it’s so easy to use. A big thanks to whoever decided to bring Della into our building.”

Justin

Resident

“As a resident whose property recently onboarded Della, I've been thoroughly impressed with the smart features it offers. Being able to control my apartment's temperature and receive instant building updates has made my life incredibly convenient.”

Mike

Resident

“Della is a game changer! The Della Connect dashboard's powerful capabilities have elevated how I manage my properties to a whole new level. Five stars all the way!”

Kaley

Property Manager, Asset Living

“Della is amazing. We had a hard time with all things in our building before Della. Things like getting in touch with the property management was always a struggle. Having multiple apps for everything and struggling to navigate it all was so frustrating. But Della somehow managed to absolutely impress me. It's so easy and smart. Does Della have other buildings? I would seriously only consider living in a building with it. Love love love Della.”

Alison

Resident

“This app is awesome! It's super easy to use and has everything I need to control my house all in one place. I've never had such a convenient way to manage everything in one place. Totally recommend it to anyone!”

Ketino

Resident

Choose the plan that suits you best

Della OS
Della OS
Della OS /
With Smart
Living Package
Success Stories
A dozen steps and a second visit today, compared with one conversation where Della handles the request and the technician brings the right filter
One Conversation Instead of a Dozen Steps: What Building Aware AI Saves a Property Team
Success Stories
Nov 14, 2026
One Conversation Instead of a Dozen Steps: What Building Aware AI Saves a Property Team
Success Stories
A voice conversation with Della in the Della Resident app confirming a lounge reservation and guest pass
Talking to Your Building: A Voice Concierge for Apartment Residents
Success Stories
Nov 14, 2026
Talking to Your Building: A Voice Concierge for Apartment Residents
Success Stories
Della showing a proposed change for review, then reporting each update as completed or pending
Why Completed Should Mean Confirmed: Action States in Property AI
Success Stories
Nov 14, 2026
Why Completed Should Mean Confirmed: Action States in Property AI
Success Stories
Capability groups for the staff partner and resident concierge, with a note that turning on a capability never widens anyone's access
How Identity, Documents and Permissions Shape an Operational AI Agent
Success Stories
Nov 14, 2026
How Identity, Documents and Permissions Shape an Operational AI Agent
Success Stories
A resident asking Della how to reserve the lounge in the Della Resident app
How Property Teams Should Evaluate a Resident AI Concierge
Success Stories
Nov 14, 2026
How Property Teams Should Evaluate a Resident AI Concierge
Success Stories
Resident Sentiment Score shown by portfolio, by building with its drivers, and on a resident profile ahead of renewal
How the Resident Sentiment Score Works, and How to Use It Before Renewal
Success Stories
Nov 14, 2026
How the Resident Sentiment Score Works, and How to Use It Before Renewal
Success Stories
What a building aware agent can know, what it is enabled to do and whose permissions it uses, on the Della OS foundation
What Makes an AI Agent Useful in Building Operations?
Success Stories
Nov 14, 2026
What Makes an AI Agent Useful in Building Operations?
Success Stories
Drawing of door access mapped to residents, guests and staff
Access Control That Follows the Lease: PDK and Della OS
Success Stories
Nov 14, 2026
Access Control That Follows the Lease: PDK and Della OS
Success Stories
Drawing of private resident Wi-Fi networks across a property
Managed Wi-Fi That Follows the Lease: Della OS and RUCKUS Networks
Success Stories
Nov 14, 2026
Managed Wi-Fi That Follows the Lease: Della OS and RUCKUS Networks
Success Stories
Drawing of apartment thermostats reporting to the property team
Della OS and UEI TIDE Touch: Portfolio Wide HVAC Control for Multifamily
Success Stories
Nov 14, 2026
Della OS and UEI TIDE Touch: Portfolio Wide HVAC Control for Multifamily
Success Stories
Drawing comparing separate building products with one building that works as one
How to Switch Smart Apartment Platforms Without Replacing Your Hardware
Success Stories
Nov 14, 2026
How to Switch Smart Apartment Platforms Without Replacing Your Hardware
Success Stories
Bright apartment living room and kitchen with a smart lock by the door
Senior Living Building Technology: Access, Communication and Operations on One Platform
Success Stories
Nov 14, 2026
Senior Living Building Technology: Access, Communication and Operations on One Platform
Success Stories
Residents looking at a phone together in a student housing common area
Student Housing Access and Wi-Fi at Move-In: How to Automate It From the Lease
Success Stories
Nov 14, 2026
Student Housing Access and Wi-Fi at Move-In: How to Automate It From the Lease
Success Stories
Drawing of one operating layer connecting the PMS, people and building systems
Which Locks, Access Control and Intercoms Work With Della OS? Compatibility Guide
Success Stories
Nov 14, 2026
Which Locks, Access Control and Intercoms Work With Della OS? Compatibility Guide
Success Stories
Drawing of how an integrator, the property team and Della share each step of a deployment
Smart Building Platform for Integrators and MSIs: What to Look For in Multifamily
Success Stories
Nov 14, 2026
Smart Building Platform for Integrators and MSIs: What to Look For in Multifamily
Success Stories
Drawing of Della AI answering a property question from live building data, within the user's permissions
AI for Multifamily Building Operations: What It Can Actually Do
Success Stories
Nov 13, 2026
AI for Multifamily Building Operations: What It Can Actually Do
Success Stories
Della OS at a glance: 105,000+ active and contracted units, SOC 2 Type 1, 30+ technology partners
Della OS Company Facts: Scale, Customers, Security and Partners
Success Stories
Nov 13, 2026
Della OS Company Facts: Scale, Customers, Security and Partners
Success Stories
Della Connect on a desktop monitor
How Secure Is Smart Building Software? Questions to Ask Before You Connect Your Building
Success Stories
Nov 13, 2026
How Secure Is Smart Building Software? Questions to Ask Before You Connect Your Building
Success Stories
Apartment living room
Can Smart Building Software Lower Apartment Operating and Energy Costs?
Success Stories
Nov 13, 2026
Can Smart Building Software Lower Apartment Operating and Energy Costs?
Success Stories
Integrator and site engineer planning a rollout on a tablet
How Does a Smart Building Rollout Work? A Step-by-Step Guide for Apartments
Success Stories
Nov 13, 2026
How Does a Smart Building Rollout Work? A Step-by-Step Guide for Apartments
Success Stories
Property professional reviewing costs on a laptop
What Does Smart Building Software Cost Per Unit? The Cost Drivers Explained
Success Stories
Nov 13, 2026
What Does Smart Building Software Cost Per Unit? The Cost Drivers Explained
Success Stories
Della Connect dashboard on a laptop in an office
How to Standardize Building Operations Across a Multifamily Portfolio
Success Stories
Nov 13, 2026
How to Standardize Building Operations Across a Multifamily Portfolio
Success Stories
Drawing of apartment smart locks following the lease in the property management system
How to Connect Your Property Management System to Smart Locks
Success Stories
Nov 13, 2026
How to Connect Your Property Management System to Smart Locks
Success Stories
Connected smart lock hardware shown in the Della app
Smart Building Software That Works With the Hardware You Already Own
Success Stories
Nov 13, 2026
Smart Building Software That Works With the Hardware You Already Own
Success Stories
Apartment building at dusk
Why Don't My Apartment Building's Systems Work Together? And How to Fix It
Success Stories
Nov 13, 2026
Why Don't My Apartment Building's Systems Work Together? And How to Fix It
Success Stories
Della OS Episode 1: The Operating Layer Multifamily Never Had
Della OS Episode 1: One Building, One Move Out, One New Lease
Success Stories
Nov 12, 2026
Della OS Episode 1: One Building, One Move Out, One New Lease
Success Stories
Della Digital Signage on an elevator screen, a lobby display and a fitness center screen
Groove Launches Digital Signage Powered by Della OS
Success Stories
Nov 11, 2026
Groove Launches Digital Signage Powered by Della OS
Success Stories
Resident using the Della Resident app in an apartment kitchen
What Is a Smart Apartment? A Guide for Owners, Operators and Residents
Success Stories
Nov 11, 2026
What Is a Smart Apartment? A Guide for Owners, Operators and Residents
Success Stories
Apartment building with balconies
What Is a Smart Building? A Guide to Smart Building Technology for Apartments
Success Stories
Nov 11, 2026
What Is a Smart Building? A Guide to Smart Building Technology for Apartments
Success Stories
Della Connect on a laptop
How to Choose a Smart Building Platform for Your Apartment Portfolio
Success Stories
Nov 11, 2026
How to Choose a Smart Building Platform for Your Apartment Portfolio
Success Stories
Multifamily building being retrofitted with smart technology
Retrofitting the Future: How Della is Meeting the Moment in Multifamily Housing
Success Stories
Jun 4, 2024
Retrofitting the Future: How Della is Meeting the Moment in Multifamily Housing
Success Stories
Resident using a smart building app in their apartment
How Resident Retention is Key to Profitability: 5 Smart Building Technology Insights
Success Stories
Dec 6, 2024
How Resident Retention is Key to Profitability: 5 Smart Building Technology Insights
Success Stories
Property management trends for 2025
What Are the 3 Key Property Management Trends to Watch in 2025?
Success Stories
Nov 4, 2024
What Are the 3 Key Property Management Trends to Watch in 2025?
Success Stories
Parks Associates Smart Spaces 2024 conference session
Parks Associates SmartSpaces 2024
Success Stories
Drawing of a lease change in the property management system becoming changes in the building
Regius Square: How Asset Living Runs an Award Winning Salt Lake City Community on Della OS
Success Stories
Nov 14, 2026
Regius Square: How Asset Living Runs an Award Winning Salt Lake City Community on Della OS