Who pays when a building won't allow a lockbox in the entry vestibule?

This is the most common fight operators lose. Many HOAs and condo boards ban exterior lockboxes outright, citing aesthetics and security. Before you buy anything, read the building rules and ask the board in writing. If lockboxes are banned, your realistic options are a co-host or local cleaner who keeps a key, in-unit lockbox access only after the guest is already through the front door, or a buzzer approach that needs no physical hardware at the entrance. Fighting a board over a lockbox usually costs more goodwill than it is worth.

Is auto-expiry actually necessary, or can I just revoke access manually?

Manual revocation works fine if you run one or two units and check your bookings daily. You text the guest a code, then disable it the morning after checkout. Auto-expiry mainly earns its keep when you have several back-to-back turnovers a week and forgetting to revoke once means a departed guest can still get into the building. If you are disciplined and low-volume, manual is genuinely fine. Do not buy automation to solve a problem you do not have yet.

What if a unit's buzzer is a hardwired intercom with no dial-out?

Then call-forwarding software cannot help that unit, and neither can most app-based approaches that rely on the panel placing a phone call. Your options are a key or in-unit lockbox arrangement, a co-host who lets guests in, or asking the building to upgrade the panel, which is a capital decision only the owner or HOA can make. Confirm dial-out before you assume any software will work.

Do I need anything beyond building entry to run a remote check-in?

Yes. The buzzer only gets a guest through the building's front door. You still need a way into the actual unit, normally a smart lock or an in-unit lockbox with a code you rotate per booking. Plan both layers. Many operators automate the unit door first because that is where guests get stuck, and handle the building door separately.

Blog / Managing Short Term Rental Buzzer Access Across Multiple Units

Managing Short Term Rental Buzzer Access Across Multiple Units

By Ty · 2026-04-17

Run several short term rentals and building entry stops being a quick text and becomes a daily operations headache. Inside a single turnover you have a cleaner racing the clock, a handyman for a flooded bathroom, a linen drop, and then the next guest hauling bags in before the last one is fully out. Every one of them is stuck at the front door, calling you, while you are trying to do anything else.

And the worst version is the guest who lands at a buzzer with no way in and leaves you a one-star review for it. The more units you run, the more often this happens, and the more it costs you.

How to fix it

Match the fix to your volume and to whether you actually control the building. Start simple and only add tooling when the manual version starts producing mistakes.

Option	Pros	Cons
Entrance lockbox	Cheap, needs no phone or signal	Many HOAs ban exterior boxes, codes rarely rotated, a fob outside is a security risk
Local cleaner as key-holder	Already carries fobs, lets vendors and guests in	Dependency: when they quit, your access plan walks out with them
Co-host or local manager	Most dependable, handles arrivals in person	Priciest option, hard to justify when units are scattered
Smart lock on unit door	Per-booking codes that expire, solves where guests actually get stuck	Covers the unit door only, you still handle the building door
Building-door hardware (ButterflyMX, Latch)	Capable and good looking	Needs owner or HOA approval, installer, wiring, capital, subscription
Lowkey	Per-booking codes that auto-expire, schedules for cleaners and vendors, every unit in one app	Quick one-time setup with the building

Where Lowkey helps

When a guest presses your unit, the building’s panel rings a phone, and Lowkey catches that buzzer call so you can open the front door from anywhere. It is pure software with nothing to install: you give the building a virtual number to program for the unit, and from then on you run everything from one app.

For operators that means real control across a portfolio. Issue a 4-digit passcode per booking, set scheduled and recurring access for cleaners and vendors, and create time-limited windows that auto-expire at turnover so a departed guest can never get back into the building. Manage every unit from a single app, watch entries land as push notifications, and pull activity history per door without leaving home. Lowkey can also auto-buzz the right people in so arrivals never wait at the door. Start with a 14-day free trial on one building.