The laws on outdoor surveillance cameras for homes in Colorado let you record video of your own property and any public areas your cameras naturally take in, but audio is the part that catches homeowners out: Colorado prohibits recording conversations you aren’t part of unless you fit a specific security-device exception that requires posted notice on your premises.1Justia Law. Colorado Code 18-9-305 – Monitoring Device Use on Own Premises Get the aim and the audio settings right and you’re fine. Get them wrong and you’re looking at misdemeanor charges, a civil suit, or both.
Where You Can Point the Camera
The controlling idea is “reasonable expectation of privacy.” Aim cameras at anything you own or control: your yard, driveway, garage, porch, front door. If the lens also picks up the sidewalk, the street, or a neighbor’s front yard that’s already visible from where the camera sits, that’s lawful too. Nobody expects privacy in a space anyone walking by can see.
What you cannot do is deliberately train a camera on places a neighbor has taken steps to keep private. Over a privacy fence. Through a window with the curtains drawn. Into a bedroom or bathroom. Colorado’s criminal invasion of privacy statute makes it a crime to knowingly photograph or observe someone’s intimate parts without consent in a place where that person reasonably expects privacy, and “photograph” under the statute includes video and live feeds.2Justia Law. Colorado Code 18-7-801 – Criminal Invasion of Privacy
The working test: your camera’s primary job should clearly be watching your own property. Catching a slice of the neighbor’s open driveway is incidental and fine. If someone could reasonably look at the mount and conclude the camera exists to watch what the neighbors are doing, you have a problem.
Audio Is the Part Most People Get Wrong
Colorado follows a one-party consent rule for recording in-person conversations: at least one person in the conversation has to know it’s being recorded.3Justia Law. Colorado Code 18-9-304 – Eavesdropping Prohibited – Penalty You can be that party. When you talk to a delivery driver on your porch and the doorbell camera captures the exchange, the recording is lawful because you’re in the conversation and you know it’s running.
The trouble starts when the microphone picks up conversations you aren’t part of. Two neighbors chatting on the sidewalk in range of your camera, neither of them aware they’re being recorded, is eavesdropping. It doesn’t matter that you installed the camera for legitimate security reasons.
The Security-Device Exception
Colorado law carves out a route for homeowners. Under C.R.S. § 18-9-305, the eavesdropping and wiretapping prohibitions do not apply when a person uses monitoring devices on their own premises for security purposes, provided “reasonable notice of the use of such devices is given to the public.”1Justia Law. Colorado Code 18-9-305 – Monitoring Device Use on Own Premises The Colorado Division of Real Estate has echoed the point, noting that audio surveillance on your own premises requires notice to the public rather than individual consent.4Colorado Division of Real Estate. Audio and Video Surveillance in Properties
In practice, a visible sign near the camera reading something like “Audio and Video Recording in Progress” is what activates the exception. The statute doesn’t dictate sign size or exact wording. It needs to be prominent enough that a reasonable person approaching the property would see it.
Where the Exception Runs Out
The exception is limited to your own premises and to security or business purposes. It does not cover a camera aimed at a neighbor’s property, and it does not cover a recording made to spy on someone else’s conversations. If your camera captures a conversation happening entirely off your property, and you aren’t a participant, the exception won’t shield you. A camera on your house recording two people arguing in a yard across the street falls outside it, because the conversation isn’t on your premises. You’d need consent from at least one participant, which you’re not going to have.
The safest setting for any camera whose microphone routinely reaches beyond your property line is audio off.
Using the Footage
Lawfully recorded footage has real uses. You can hand it to police investigating package theft, vandalism, or anything more serious in the neighborhood. It’s admissible in civil court too, so if someone sues over an injury they claim happened on your property, the recording can confirm or contradict their account. Judges and juries tend to give footage weight because it’s harder to argue with than testimony.
The consistent mistake is social media. A clip that was legal to record can still generate civil liability when it’s posted with commentary that casts someone in a false or damaging light. The claim in that scenario isn’t about the recording itself; it’s about how you presented it. Keep footage for law enforcement or your attorney.
Penalties for Getting It Wrong
Recording an in-person conversation without any participant’s consent, and outside the security-device exception, is eavesdropping: a class 2 misdemeanor, punishable by up to 120 days in jail and a fine of up to $750.3Justia Law. Colorado Code 18-9-304 – Eavesdropping Prohibited – Penalty5Justia Law. Colorado Code 18-1.3-501 – Misdemeanors Classified – Penalties Intercepting phone or electronic communications without consent is wiretapping, also a class 2 misdemeanor at the same maximums.6Justia Law. Colorado Code 18-9-303 – Wiretapping Prohibited – Penalty Criminal invasion of privacy, for knowingly capturing someone’s intimate parts without consent where they reasonably expect privacy, is another class 2 misdemeanor, and the statute expressly covers videotape and live feeds.2Justia Law. Colorado Code 18-7-801 – Criminal Invasion of Privacy
Civil exposure is separate and often larger. A person who was illegally recorded can sue for invasion of privacy. Damages aren’t capped at the misdemeanor fine limits: a court can award compensation for emotional distress, and in egregious cases, punitive damages. The criminal fine may look modest next to a civil judgment from an angry neighbor.
HOA Rules and Setting Up Correctly
If your neighborhood has a homeowners association, read the covenants and architectural guidelines before you drill. Many Colorado HOAs regulate exterior modifications, and cameras often fall under those rules: placement, visible wiring, whether the lens can face common areas, sometimes a board-approval requirement. HOA violations don’t create criminal liability, but they can bring fines or an order to take the cameras down.
A few habits keep you inside the law. Post a sign that audio and video recording is in progress, which is what triggers the security-device exception under C.R.S. § 18-9-305.1Justia Law. Colorado Code 18-9-305 – Monitoring Device Use on Own Premises Angle each camera so its primary field of view is your property. Turn off audio on any camera whose microphone routinely reaches past your property line. If you’re recording, you’re on the hook for what the recording contains, so make the setup match what you actually want to watch.