Smart locks are everywhere now. Landlords like them because they cut down on lost keys, make turnovers faster, and give you a clean way to manage access for maintenance. Tenants are often fine with them too, until the conversation turns into one uncomfortable question: “So… do you have a code that lets you get in whenever you want?”
That question is where smart locks can become a legal and reputational problem. A smart lock is not automatically illegal, and it’s not automatically “harassment,” but it can absolutely be used in a way that triggers privacy complaints, quiet enjoyment claims, or even allegations of illegal entry. If you want to use smart locks safely, you need to treat them like a security tool with strict boundaries, not a way to keep tabs on your tenant.
The short answer (what landlords need to know)
In most situations, a landlord can install a smart lock on a rental property, including on the main entry door to a unit. The bigger issue is not the lock itself, it’s access. If you keep a working code or key and you use it without proper notice or a valid reason, you can end up in the same legal territory as a landlord who “just lets themselves in.”
If you want a clean baseline, start with AAOL’s guide on whether a landlord can enter without permission. Smart locks don’t change the entry rules. They just make it easier to violate them if you’re careless.
Why smart locks create conflict (even when you mean well)
Many landlords install smart locks for practical reasons: faster maintenance access, easier move-ins, and fewer lockouts. But tenants often see smart locks as a surveillance tool, especially if they believe you can track when they come and go, or if they think you can enter without warning.
This is where landlords accidentally step into “quiet enjoyment” territory. A tenant doesn’t need to prove you entered every day to complain. If the tenant feels like they can’t relax in their own home because you might pop in, that’s when arguments about breach of quiet enjoyment start showing up.
Can a landlord keep a code or key to a smart lock?
In many rentals, landlords keep a key for emergencies or maintenance. A smart lock doesn’t change the concept, but it does raise the stakes. If you keep a code, you need to be able to explain why you have it, who can use it, and what rules control it.
A landlord keeping access is usually easiest to defend when:
- The lease or house rules clearly explain how access works
- You follow notice rules for entry (except true emergencies)
- You limit who has the code (not “everyone on the team”)
- You document maintenance entry like a professional
A landlord keeping access becomes hard to defend when the tenant believes the lock is being used to pressure them, intimidate them, or “check up” on them. If you’re already in a tense situation, read AAOL’s breakdown of what is considered harassment by a landlord before you do anything that could look like escalation.
What landlords should never do with a smart lock
Smart locks make some bad landlord habits easier. If you want to stay out of trouble, avoid these mistakes completely:
- Entering without notice (unless it’s a real emergency)
- Letting contractors enter without proper scheduling and clear tenant communication
- Changing codes as punishment or to “send a message”
- Locking a tenant out to force payment or compliance
- Using access logs to monitor a tenant’s lifestyle (guests, late nights, travel)
If you’re dealing with a tenant who is claiming you entered improperly, or they’re threatening to report you, AAOL’s tenant-focused guide on what tenants can do if their landlord enters without permission is worth reading too. Not because you agree with it, but because it shows you exactly how tenants are coached to frame the complaint.
Do smart locks count as “surveillance”?
A smart lock is not a camera, but it can still feel like surveillance if it tracks entry events and the tenant believes you’re watching those logs. Some systems also integrate with cameras, doorbells, and alarm systems, which can make the tenant feel like the property is being monitored as a whole.
The safest approach is to treat lock data like a sensitive record. You should have a clear reason for collecting it, and you should not use it for petty enforcement. If you can’t explain your policy in one calm paragraph, it’s probably too aggressive.
Lease language and disclosure (how to do this cleanly)
If you want smart locks to reduce problems instead of creating them, put the rules in writing. Tenants don’t like surprises, and “we’ll explain it later” is where distrust starts.
Your smart lock policy should clearly state:
- That the property uses a smart lock system
- Whether the tenant gets their own unique code (recommended)
- Whether the landlord keeps an admin code or physical backup key
- Who is allowed to use landlord access (owner, property manager, maintenance)
- That landlord entry follows notice rules except emergencies
- How codes are changed at move-out and move-in
- What happens during a lockout or system failure
If you’re unsure what you can enforce during the lease, AAOL’s overview of landlord rights during the lease is a good reference point before you finalize your policy.
Best practices that keep landlords out of trouble
Smart locks can be a win for everyone when they’re managed like a professional building system. Here are best practices that reduce complaints and reduce legal exposure:
- Give the tenant a unique code and avoid shared “tenant codes”
- Limit landlord access to a small number of authorized people
- Use written notice for entry and keep a simple log of maintenance visits
- Disable unnecessary features that feel invasive (or at least don’t use them)
- Have a backup plan for dead batteries, Wi-Fi outages, and lock failures
- Change or reset access at every turnover, every time
And if you’re managing multiple properties and trying to standardize your process, it helps to build your system around compliance and documentation from day one. AAOL membership is designed for that kind of landlord risk management, and you can review it here: AAOL membership.
Smart lock checklist (landlord-safe setup)
- Choose a lock that supports unique tenant codes and admin controls.
- Decide who will have landlord access and keep that list small.
- Write a clear smart lock policy and attach it to the lease or house rules.
- Follow notice rules for entry (except true emergencies).
- Reset codes and revoke access at every move-out and move-in.
- Document maintenance entry the same way every time.
- Have a plan for lock failures and lockouts.
AAOL action plan
If you want to install a smart lock, do it in a way that makes tenants feel safer, not watched. Give tenants their own code, keep landlord access limited, and follow entry notice rules like your business depends on it, because it does. If a tenant ever claims you entered improperly, your documentation and your consistency are what protect you.
For more landlord templates, compliance tools, and state-by-state guidance, join AAOL here: AAOL membership.
Disclaimer
This article is for general informational purposes only and does not constitute legal advice. Landlord-tenant laws vary by state and city, and the right approach depends on your property type, lease language, and how access is managed. For guidance on your specific situation, consult a qualified local attorney.
