CASE NO. 02 · REAL ESTATE / HARDWARE · CLIENT: TOOR
Self-guided home tours, secured by custom hardware.
Toor wanted buyers to tour a house on their own, with no agent meeting them at the door. That only works if the lockbox knows who is standing in front of it. So we built one that does. The showing is booked in an app, and the key is issued only to a buyer whose identity has been checked.
What we delivered
The shape of it
Hardware and software, built by one accountable team.
The client
Toor is a Dallas real-estate startup with a simple pitch: the “Airbnb-ification” of real estate showings. Book a home tour from an app, show up, and let yourself in. That pitch carried its founder onto Shark Tank Season 8.
The friction
Every showing has to be coordinated by hand. A lockbox gets placed, an agent gets scheduled, and it all happens again for the next buyer. Then there is the lockbox itself. It is a dumb box hanging on a door handle with no idea who is opening it.
The constraint
A stranger with a phone has to open a physical door, safely and only once.
- Identity: a driver's license checked in real time before any key is issued
- Access windows: a key is valid for one showing, then never again
- Connectivity: BLE opens the door, cellular fallback reports status
- Lockstep releases: the box and the platform ship as one system
What it takes to open the door.
Hardware
The lockbox
A custom Bluetooth Low Energy lockbox with cellular fallback. The phone opens it over BLE. The box reports its own status over cellular, so the platform knows the state of every door whether or not anyone is standing at it.
Security
Identity, verified in real time
A driver's-license verification API sits directly in the issuing path. The buyer's identity is checked in real time, before any key exists. No verified identity, no key. No key, no open door.
Access
Keys that expire
Temporary key management scopes every key to a single showing window. It works for one buyer at one address. When the window closes, it stops working.
Inside the build.
Why the lockbox can believe the phone.
A BLE handshake is a thin thing to hang a physical door on. So the system does its work earlier. By the time a phone reaches the lockbox, the buyer's identity has already been verified in real time and the key has already been bound to one showing window. The lockbox honors nothing else. And because nobody is guaranteed to be standing in front of it, cellular fallback carries the box's status back to the cloud whenever it is out of BLE reach.