Proptech NOI Test: When AI Cameras Cancel a Guard Line Item

1. The honest NOI test for proptech

The honest test is whether a tool changes a line on the operating statement. There are only a few ways that happens:

• It cancels a recurring contract.
• It removes a labor cost.
• It reduces a quantifiable loss line such as bad debt, theft, or insurance premium.
• It increases revenue per door without operating cost added.

Most proptech does not pass this test. It adds cost to enable possibility. AI camera monitoring is one of the few categories that can pass it cleanly, but only if it directly displaces something the property already pays for.

2. The guard line item on Class B and C

On Class B and C multifamily, security spending tends to live in one of three buckets:

• Roving patrol contracts. $1,500 to $4,000 per month for 2 to 4 nightly drive-throughs.
• Static guard. $8,000 to $20,000+ per month for an on-site guard during a defined shift.
• Reactive only. No standing contract, with after-incident calls to police and ad hoc patrol.

The roving patrol category is where AI monitoring most directly replaces an existing recurring cost.

3. What AI monitoring actually replaces

Real time AI monitoring on existing cameras directly displaces the deterrence and detection function that roving patrols are paid for:

• 24/7 visual coverage of every camera tile, not 2 to 4 brief drive-throughs.
• Real time alerts to on-call staff when activity that requires attention is detected.
• Documented incident logs that are available for residents, insurance, and counsel.
• Remote dispatch of police or staff response, often before the activity has escalated.

On most Class B and C properties, the monitoring layer covers the same use case that the patrol contract covers, with significantly more time on site.

4. What it does not replace

Honest scoping matters. AI monitoring does not replace:

• Physical intervention. If the use case is a guard physically removing a trespasser from the property, that requires a human.
• Visible deterrence at scale. A uniformed guard standing at the leasing office is a different deterrent signal.
• Resident touchpoints. Concierge and access control responsibilities that get bundled into a guard contract.

Where the contract is purely deterrence and detection, AI monitoring substitutes cleanly. Where it is physical intervention or resident-facing services, monitoring complements rather than replaces.

5. The payback math

For a property paying $3,000 per month for a roving patrol contract, AI monitoring on existing cameras typically pays back inside the first month. Annualized, the savings on a single property usually exceed the all-in cost of monitoring across an entire portfolio.

6. Getting started: 30 day pilot

The pilot is straightforward: install AI monitoring on one property, run alongside the existing patrol contract for 30 days, document incident counts and response times. At the end of the pilot, the data supports the decision to either retire the patrol contract entirely or scope it down significantly.