Nuki's 5th gen Pro is a go-to smart lock for Home Assistant. Matter over Thread (plus built-in Wi-Fi) means it talks directly to your network with no bridge or cloud in the middle. It clamps onto your existing cylinder, so installation is non-destructive. For a US single-cylinder deadbolt the model to buy is the separate Nuki Smart Lock (Deadbolt); the Pro itself is a European profile and round cylinder product. The price is steep, but you get a fully local smart lock.
Standout: Matter over Thread retrofit smart lock for European profile and round cylinders, with built-in Wi-Fi, no hub and no cloud required.
Notes last checked Sep 4, 2026.
Compatibility snapshot
Home AssistantgoodReliable local integration with minor caveats (a hub, manual config, or polling). Core function works locally.
Apple HomegoodWell supported, with only minor gaps.
Google HomegoodWell supported, with only minor gaps.
AlexagoodWell supported, with only minor gaps.
Works offlineyes
Setupmoderate
Extra hub neededno
Powerbattery
Local control facts
Home Assistant: matter integration, Local Push (home-assistant.io, checked Sep 10, 2026)
Why it stands out
Matter over Thread (plus built-in Wi-Fi) means no hub, no bridge, no cloud for a fully local smart lock
retrofits over your existing cylinder without replacing it
Thread mesh networking gives excellent range and reliability
Reasons to hesitate
European profile and round cylinders only; the Pro is not sold on Nuki's US store and will not fit a US single-cylinder deadbolt
premium price point for a retrofit lock adapter
Thread border router required on your network for Matter connectivity
Best for
Home Assistant users wanting a local-first smart lock with no cloud dependency
anyone with a European profile or round cylinder door who wants Matter over Thread
Avoid if
you have a non-cylinder or mortise lock not covered by Nuki's adapter range
you want a built-in keypad or fingerprint reader. Those are separate Nuki accessories
Privacy and local-control notes
Matter over Thread is fully local. No cloud account required for basic operation. Nuki cloud is optional for remote access and guest management.
Home Assistant support: supported · integration path: Matter.
Buying reality check
Price notes: Premium pricing but you avoid recurring cloud fees. Keypad and fob accessories are sold separately.
