Think Build Implement Repeat
London, UK +44 7367 067226
WhatsApp FOLLOW f in X
  1. Home
  2. Blog
  3. How Do We Manage Key Safe and Smart Lock Codes Across Our Holiday Lets Without a Security Worry?
Problems We Solve

How Do We Manage Key Safe and Smart Lock Codes Across Our Holiday Lets Without a Security Worry?

Holiday let key safe codes stay the same for months and live in a spreadsheet. We build access code management that issues codes per stay and logs entry.

Updated 2 min readBy SpiderHunts Technologies

Free estimateNo obligation

Get a free estimate

Tell us what you need. A senior engineer reads every enquiry.

Takes under a minute. We never share your details.

  • Free consultation
  • No commitment
  • NDA on request

Prefer to talk? Book a free 30-minute call →

Quick answer — TL;DR

Many holiday lets use key safes whose code rarely changes, or smart locks that are set up but not linked to bookings, so past guests, old cleaners and contractors can still get in. We build access code management that ties codes to bookings and jobs: unique codes per stay on smart locks that support it, a code change task for key safes at changeover, time-limited codes for cleaners and contractors, and a log of who had access when.

The same code since last summer

The key safe at one of your cottages has had the same code since it was installed. Every guest from last season knows it, so do three former cleaners and a plumber who did one job. The code is in a spreadsheet, in dozens of arrival messages, and written on a sticky note in the office.

At another property the owner fitted a smart lock, but nobody linked it to the booking system, so it is used like a key safe with one permanent code.

Why codes do not get changed

Changing a key safe code means someone has to be at the property, remember to do it and update every record and message that mentions it. On a busy changeover day, that does not happen.

Smart locks solve part of the problem, but only if they are connected to bookings. Without that link, codes are created by hand, and staff find it simpler to keep one. Different properties also have different lock brands, each with its own app.

What unchanged codes cost

The obvious risk is security: someone who should no longer have access can get in. Owners worry about it and ask. If anything goes missing, you cannot say who had access. And when a code must be changed urgently, for example after a lost guest message, it becomes a rush job with messages to resend.

The access code management we build

We build a layer that ties access to bookings and jobs, working with the locks you have where they allow it.

  1. Access register: each property's entry method is recorded: key safe, smart lock and brand, or keys held by a keyholder.
  2. Smart lock codes per stay: for locks with an accessible API, a unique code is created for each booking, active from check-in to check-out, and sent in arrival instructions automatically.
  3. Key safe rotation: for key safes, a code change task is added to changeovers on the schedule you choose, and the new code is recorded by the cleaner so future messages use it.
  4. Staff and contractor codes: cleaners and contractors get time-limited codes for their jobs where locks support it, rather than a permanent code.
  5. Access log: smart lock entries are logged against the booking or job, so you can see who entered when.
  6. Code lookup: staff look up the current code in one place, rather than in spreadsheets or old messages, with access to that screen limited to those who need it.
Access typeCode approachRecord
Smart lock with APIUnique code per booking and jobEntry log from the lock
Smart lock without APICodes set by staff, prompted by the scheduleManual record
Key safeCode changed on your chosen schedule at changeoverNew code recorded by cleaner
KeyholderKey collected and returnedHandover logged

After the change

Guests get codes that only work for their stay, where the lock allows it. Key safe codes change regularly without anyone having to remember. Cleaners and contractors have access when they need it and not afterwards. And when an owner asks who has access to their property, you can answer.

Is this your access set-up?

  • Key safe codes rarely or never change.
  • Smart locks are fitted but not linked to bookings.
  • Codes are stored in spreadsheets and old messages.
  • Former cleaners or contractors may still know codes.
  • You cannot say who entered a property on a given day.

FAQ

Frequently asked questions

The questions readers ask us after this guide.

Still have a question?

Ask us directly — a senior engineer will get back to you.

Ask about your project

Which smart locks can this work with?

Those with an API or integration your property management system supports. We check your lock brands before scoping.

Do we need to replace key safes with smart locks?

No. Key safes can be managed with scheduled code changes. Whether to upgrade some properties is a decision for you and the owners.

What if a smart lock loses connection?

A backup method, such as a key safe or keyholder, stays in the property record, and your team is alerted if a code fails to set.

Who can see the codes?

Only staff who need them, with access controlled and logged.

Keep reading

More on Problems We Solve

Start here

Tell us what slows your holiday let operation down

Describe the job, how many properties it covers and which booking system and channels you use. We will tell you what we would automate, what should stay with your team, and if a setting in the software you already pay for would fix it, we will say so.

  1. You tell us what you needTwo minutes on the form, or a message on WhatsApp.
  2. A senior engineer reviews itAnd comes back with questions, a realistic range and an honest view on fit.
  3. Free 30-minute scoping callWe talk through scope, options and a realistic estimate — with no obligation.
Free estimateNo obligation

Talk to someone who builds this

Send a short brief and we will come back with an honest view and a realistic range.

Takes under a minute. We never share your details.

  • Free consultation
  • No commitment
  • NDA on request

Prefer to talk? Book a free 30-minute call →