Best Places to Hide a Spare Key (and 7 to Avoid)

TL;DR: Skip the doormat, fake rock, and mailbox entirely — they're the first three spots burglars check, according to police departments that track break-in patterns. A better option is a combination lockbox mounted on a fence post 15-20 feet from the door, or a smart lock with a one-time code you can delete after a guest leaves.

_Last reviewed: July 2026 · 6 min read_

You've lost your keys twice this year and you're tired of calling a locksmith at $75 to $150 a visit. The problem is most "hidden" spots aren't hidden at all — they're the first place anyone with bad intentions looks.

Okoniq Property Hub keeps a private log of where spare keys, lockbox codes, and access instructions live for each property, so you're never guessing which relative or contractor has which code.

What's wrong with the classic hiding spots?

They're classic because everyone uses them, which is exactly the problem. A 2019 survey by a national locksmith trade group found that over 60% of homeowners hide a key somewhere within 10 feet of their front door, and burglars know it.

The seven spots to retire immediately: under the doormat, inside a fake rock, above the door frame, in the mailbox, under a flowerpot, inside the grill, and taped under a porch railing. All of these get checked within the first two minutes of a break-in attempt, according to home security consultants who study forced-entry patterns. Fake rocks are especially bad — they're sold at the same three or four big-box stores nationwide, so the exact model sitting by your door is recognizable to anyone who's seen one before.

If your home still has a screen door or storm door with a simple pin lock, pair this with a look at 2-prong vs 3-prong outlets if you're planning any electrical upgrades near entry points at the same time — bundling small jobs saves a service call.

Where should you actually hide a spare key?

Farther from the door than you think, and not in an obvious container. Security researchers generally recommend keeping a hidden key at least 15 to 20 feet from any entrance, ideally somewhere with no direct sightline from the street or porch.

Good options include a combination lockbox bolted to a fence post or shed wall in the backyard, a key buried inside a genuine outdoor object that isn't shaped like a key holder (a low fence post cap you drilled yourself, for example), or given to a trusted neighbor instead of hidden at all. A $25 to $40 combination lockbox from a hardware store is harder to defeat than it looks — most use a 4-digit resettable code, and mounting it somewhere non-obvious like behind a downspout beats anything shaped like a rock or a bolt.

If your house has masonry accents, a key sometimes ends up tucked in a mortar gap near the foundation. Don't do this — those gaps are also the first place you'll spot trouble if your brick needs repointing, and a key sitting in a crumbling joint is easy to spot and easy to lose.

Is a smart lock actually better than a hidden key?

For most owner-operators, yes — a smart lock removes the "hidden key" problem entirely by replacing it with a code you control remotely. Models from Schlage, Kwikset, and August run $150 to $280 installed and let you issue temporary codes for a cleaner, a contractor, or a tenant, then delete the code the moment the job's done.

The tradeoff is battery life (most last 6-12 months on 4 AA batteries) and the fact that a smart lock is only as good as the door it's mounted on — a hollow-core door with a smart deadbolt is still a hollow-core door. If your panel is older, confirm you actually have the capacity before adding smart-home hardware; a quick way to check is our guide on 100 vs 200 amp service, since some smart lock hubs and video doorbells add up faster than people expect.

| | Hidden Physical Key | Smart Lock | |---|---|---| | Upfront cost | $0-40 (lockbox) | $150-280 installed | | Risk if found | Full access, no log | Code-based, deletable | | Works in a power outage | Yes | Yes (battery backup) | | Best for | Occasional backup | Frequent guest/tenant turnover |

What about giving a key to a neighbor instead of hiding it?

This is the option most security professionals actually recommend first, because a person can use judgment and a rock cannot. Pick a neighbor you trust, give them a labeled key (not labeled with your address — use initials or a code only you two know), and let them know who's allowed to ask for it.

The catch is coordination. If you're managing a rental and rely on this method for tenant turnover, write down exactly who holds which key and when it was handed over, because verbal arrangements fall apart after the third tenant. This is also where a crawlspace access panel becomes relevant — some owners stash a key near the crawlspace hatch instead of the front door on the theory that no one checks there, but if your vapor barrier has already failed that area gets damp and buggy fast, which isn't a great place to keep metal you want to still work in six months.

How do you handle spare keys for a rental property?

Track every copy in writing and re-key between tenants, full stop. The National Apartment Association recommends re-keying or at minimum changing the code between every tenant turnover, which typically costs $50 to $120 for a standard deadbolt re-key versus the far larger cost of a dispute over who still has access.

Keep a simple log: who has a key, when it was issued, and when it was returned. If you use lockboxes for showings or maintenance visits, rotate the code after every listing period, not once a year.

FAQ

Is it illegal to hide a spare key outside your house?

No, hiding a spare key on your own property is legal in all 50 states. The only legal question that comes up is liability if you know a hidden key was accessible and it leads to an unauthorized entry, which is a homeowners insurance conversation, not a criminal one.

How much does a locksmith charge if you're locked out?

Most locksmiths charge $75 to $150 for a standard residential lockout during business hours, with after-hours or holiday calls running $100 to $250. A $30 lockbox pays for itself after one call.

Should you tell your homeowners insurance company about a hidden key?

You don't need to disclose it, but if you're filing a burglary claim and there's evidence a key was left in an obvious spot, some insurers may raise questions about reasonable security precautions. Check your policy's specific language on this.

Can a smart lock be hacked?

Reputable brands like Schlage and Kwikset use encrypted Bluetooth or Z-Wave protocols and have no major documented remote-hacking incidents as of 2024, but any internet-connected device carries some risk. Keep the lock's firmware updated and use a unique app password.

How often should you change a hidden key's location?

Move it every time someone outside your household (a contractor, a house sitter, a departing tenant) has known its location. If more than 2 or 3 people know where it is, it's not really hidden anymore.

This is educational information, not security or legal advice. Consult a licensed locksmith or home security professional for a setup specific to your property.