Crazy Smart Lock Idea - Whole Building Automation Using HA/ZWave

Curious if there’s anyone out there as crazy as me and a couple of my nerd friends at our church… We are attempting to engineer a cost effective whole building automation solution able to be managed in HA with Z-Wave 800 LR devices w/ repeaters (for their reliability) as the primary backbone. (We’ll still deploy Zigbee 3.0, Wifi, hardline POE and anything else necessary to achieve a bespoke solution to a problem though if we have to, our building is just already a 2.4Ghz nightmare from the local Radio Station up the street, so we’re hoping to rely on that band sparingly.)

With a staff of 40+, and volunteer network of about 600+, we easily have over 100 doors on our single building campus with varying levels of access and security needed, and a desire to track access events on as granular a level possible.

Before we jump headlong into the abyss, I just thought I’d ask as general a question as I can reign myself in to ask…

… Is HA (with a properly powerful local server to meet processing demand) robust enough to manage that many Z-Wave enabled smart door locks, with unique access codes (as many types as possible, facial, finger, hand, pin, fob, digital, etc) for that many users… reliably?… or at all?

I’m just curious if anyone out there is as crazy as we are, or if anyone thinks it’s just crazy enough to be possible, based on the fact Home Assistant IS in fact powerful enough to manage that kind of unique level of traffic and variables reliably!

A close second to this question is of course what door lock hardware is available today that is robust enough to handle that level of demand either? Upon initial research, most advanced locks, even Lockly Pro’s suedo-enterprise solution with management software/subscription, seem to cap out at 100 unique fingerprints, codes, fobs, etc or less.

Any insight is immensely helpful, and I so appreciate anyone who took the time to read this in advance. :facepunch:

So Home Assistant is nice project and I think if Z-Wave can handle your project size HA can too, but it is a tinker project and not really for commercial use (yet).
There is no real easy way to manage this amount of different users with different permissions. We dont even have a setting to conveniently set permissions other than admin and no admin although this is on the roadmap. We have no account level user groups.
Most of your access methods might work with some extra modifications but not natively. You can try to make it with a phone and dashboard visibility settings but to manage that is hard.
Then there is security and failsafe points. If you do know what you are doing then thats good and HA is sure good for making your own safe solution through programming, but if not do you really want to be responsible for that amount of money spend into the project when it doesn’t work or breaks and the value of the property?
Company that are specialised on that have insurance and experts working full time so that it works.
But hey I love the enthusiasm and if you go through I am happy to hear about the project. Mind that I am not a core dev and only a tinkerer myself, so dont add too much value to my thoughts. You can look through this forum, reddit or discord where people asked about similiar projects like hotels and got this response. But there are also people who did it and it works and they shared it. Maybe you find a wiser advice there or another one will comment.

At our university we have Simons Voss of you look for an enterprise solution.