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Solution for locking door on both sides for divider door of combined unit

  • December 19, 2025
  • 5 replies
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jdt
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I have a townhouse unit that is connected to a studio, where guests can book one, the other, or both. The dividing door between the areas needs to be locked unless the the guest books both areas, in which case the door should be able to be opened from either side. Has anyone found a solution to this? I have been unable to find a smart or coded lock with a keypad on both sides. 

5 replies

Tom Beerley
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  • December 20, 2025

Hotels sometimes have adjacent rooms with party doors that allow 2 rooms to be combined and accessed from inside each other, without going into the hallway. Their solution is to have 2 doors back to back with each other, so that the parties on both sides need to mutually agree to leave the party doors open or unlocked. 

That’s a bit construction-intensive in your case, so a decent compromise might be to have two deadbolt keypads, one facing one way, and a second facing the other way. One would obviously need to be mounted higher than the other. The guests would need to initially enter the keycode on both sides of the door, but from that point forward the party door could be left open.  


Tom Beerley
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  • December 20, 2025

Also, for convenience, if a guest booked both sides, you could remotely unlock both sides of the door before they check-in, so that by default the party door is unlocked, and it would up to them whether or not to lock it, and from which side they would want it locked.


Tom Beerley
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  • December 20, 2025

And I was wrong about needing someone on both sides of the door to get both deadbolts unlocked LOL. The same person could use the thumb latch of one lock, and the keypad for the other lock, from the same side of the door. Just be sure to set both locks to a random number whenever you have the two spaces booked to two different parties. 


brian
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  • December 20, 2025

Hey Tom – I have the same problem at a property that I managed where I use the parent child system to maintain multiple listings on one property.
 

There’s not a great solution for a Wi-Fi or a smart lock that allows you to automatically do this. I use an old school latch and combo lock. I just had my automation set up to give the combination to guess the book the whole unit so that they can unlock it if they want to…


Tom Beerley
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  • December 21, 2025

@brian True… maybe I was overthinking it LOL. It should be sufficient just to have any kind of lock, with a fixed combination, and only give the combo to guests who book both sides. It’s not an exterior door so there’s no need to change the combo for every guest.