Keys are almost never lost. They move from pocket to pocket, and nobody writes down where. This note is about the ten-second answer to "who holds the set for flat 12 right now", and the small habit that makes it possible.
Where the set went
Two cleaners swapped shifts. The handyman took a set in March to replace a boiler, and it is still in his van. A manager took keys home "to be quicker". Every step is reasonable. The problem is not the people. It is that no step left a trace.
Multiply that by ten flats and three sets each, and by a year of shifts, holidays and a cleaner who borrowed the spare "just for Saturday". The set did not vanish. It ended up somewhere nobody was looking.
Keys are not lost. They are in someone's pocket, and nobody wrote down whose.
The stakes are simple: a guest on the landing, a two-star review, and a locksmith call-out that is rarely cheap. For the wider picture of keeping all of this in order, see short-term rental management.
Count your sets and give them names
For each flat, decide how many sets exist. Small operators usually need three: one for the guest entrance (a lockbox or a handover on site), one for the team (cleaner, manager), and one in the office, sealed and never lent. Fewer than two means no spare when one goes missing; more means more places to lose one.
Tag every set "12-A", "12-B": flat number plus a letter. Not the address. If someone finds the tag on the street, they shouldn't know which door the key fits.
Be strict about copies. Cutting a new set is a decision, not an errand: one person is allowed to do it, the copy gets its own letter ("12-D"), and the entry in the log is made the same day. A copy nobody wrote down is a set nobody will ever look for.
What a key log has to answer
Three questions. Who holds the set now? Since when? When is it due back? And a fourth for sets nobody is holding: where exactly should they be?
A notebook will do for three to five flats, as long as everyone who handles keys sees each other every day. It fails the minute it ends up in someone else's bag, in a manager's car, or at the home of whoever has the day off. And the question "where are the keys to 12-A?" is rarely asked at noon in the office. It is asked at half past ten at night, with a guest already at the door, while you ring the cleaner, the handyman and a colleague who is on holiday or off today, one after another.
So the key log can't live in someone's pocket. It has to live where the whole team can see it: manager, cleaner, handyman, office, each from their own phone, at any hour. Whoever receives the keys makes the entry at the moment of handover, not from memory in the evening. A key only one person knows about belongs not to the team but to that person's memory.
An entry is short: "12-A · out · cleaning team · Fri 13:00 · due back Fri 17:00." When the set returns, the same line gets its second half: "in · Fri 16:40 · on the office hook." An entry should take ten seconds and no thought. If people need instructions to fill in the log, they simply won't.
In CortoCasa that's a key-handover log: for every set you can see who has it right now, and the answer to "who has 12-A" is one screen, not a round of phone calls to the whole team.
Hand keys over the way you hand over cash
The cash rule works here too: a two-sided entry. Whoever gives the keys records "out"; whoever takes them records "in". Keys are not left on a table or dropped in a mailbox without an entry.
- A set comes back the same day. Nobody takes keys home unless it is planned.
- The end of a shift is a handover. The cleaner returns the set to the lockbox or the manager before leaving.
- When someone leaves the team, their sets come back the same day, before the exit conversation, not after.
On a tight turnover (see where the three hours between bookings go) the handover is the first thing to slip, because the cleaner is already late for the next flat.
Lockboxes and codes: change them, and write them down
The best handover is the one that never happens. A lockbox at the door means the guest never needs a person with a key, which removes the most fragile link in the chain. The price is a new habit, because the box itself needs a set inside it, and the code needs the same care as a key.
If the door opens with a lockbox or a keypad, the code needs a habit too. Change it after each guest leaves, because the last guest still knows it. Write the code next to the entry instructions, in one place your team can see, not in a chat that scrolls into oblivion.
A code every former guest knows and a set nobody can place are the same problem: someone you don't control can get into the flat.
What if a set goes missing?
Work through it in order.
- Open the log and call the last person who held it. Most often the set is in a pocket or in a van.
- Give the search a limit. An hour, no more: after that it is not a search, it is hope.
- Decide about the lock before the check-in. If the set isn't found before the next guest, treat it as lost and change the lock. After that, the old keys open nothing. A missing set with an address attached is not the same as a tag that says "12-A".
- Protect the next guest. In CortoCasa that's a maintenance ticket against the specific flat, and it can block check-in until it is closed, so nobody is sent to a door you know won't open. If the arrival is today, arrange to meet the guest in person.
- Retire the old keys. After the lock change, any old set that turns up is scrap. Take it out of the log, so the log shows only keys that open something.
- Write down what happened. One sentence: who, when, what was changed. Next time it is a hint.
Ten minutes, every week
Every Friday, check the log against reality: each set is either visible on its hook or confirmed by whoever has it. The gaps are an early signal, while it is still cheap. Do the count before high season, and after any change in the team.
Imagine ten flats with three sets each. That is thirty tags. Checking thirty tags against a list takes ten minutes; finding out in July that one has been missing since March takes a week.
The one-line summary
Keys never disappear all at once: they disappear gradually, in pockets where nobody kept a record. Count your sets, name them, log every handover, and once a week check that the log matches the hooks.
