In-person check-in or key box? A comparison

The question is almost always framed wrongly. It is not which one is better, it is which bookings each one pays for itself on. This guide compares them point by point.

Direct comparison

What each option really costs

A key box looks free because the cost is one-off. In-person check-in looks expensive because the cost is visible on every arrival. In reality both carry indirect costs that never appear on an invoice.

With a key box, the hidden cost is messages. A guest who cannot work out the water heater writes, and someone answers — or nobody does, and the review drops. Multiply that by seven arrivals in August and it adds up to more time than seven check-ins.

With in-person check-in, a two-bedroom with seven arrivals a month comes to €154 excluding VAT. That only makes sense if all seven arrivals justify it — and they rarely do.

The rule we apply

It is not a question of property, it is a question of booking. We recommend switching on in-person check-in in these cases:

• Groups of four or more. This is where the declared number and the real number diverge, and where neighbour problems begin.
• Stays of seven nights or more. The relative cost per night becomes marginal and the relationship gain is real.
• Guests with no review history. Physical presence changes behaviour.
• The first arrival after a change to the property — new equipment, works, a changed lock.

And keeping the key box for everything else, including as a safety net when in-person check-in falls through.

What changes by area

The trade-off is not the same across the south bank.

In Costa da Caparica and Sesimbra in August, the decisive argument is occupant numbers: these are the areas where pressure on housing and parking makes over-occupancy immediately visible to the neighbours.

In Montijo, with a weekday business clientele arriving late and leaving early, the key box is almost always the right answer: the guest wants to get in without interacting with anyone.

In Azeitão and Palmela, with long stays and an older clientele, in-person check-in is what produces the five-star review — and the cost spreads across seven nights.

The mistake to avoid

Fitting a key box and never changing the code. It is the most common security flaw we find, and the only one with serious consequences. A code that never changes circulates: former guests, passers-by, anyone who watched it being entered.

If you use a key box, the code changes every stay. No exceptions. It is a thirty-second job and it belongs in the turnover.