Which Smart Home Features Actually Matter at Resale

Smart home technology is marketed as a value-add and mostly is not. A useful way to think about it: does this stay with the house, does it still work in ten years, and does it solve a problem a buyer actually has? Very little passes all three.

Start with what conveys

In a Massachusetts transaction, fixtures convey and personal property does not. A plug-in smart speaker, a camera on a shelf, a video doorbell that unclips — these are personal property, and unless the contract says otherwise, they leave with the seller.

Hard-wired devices generally convey: a thermostat wired to the HVAC, switches and dimmers in the wall, a wired security or camera system, an integrated irrigation controller.

If any of it matters to you as a buyer, itemise it in the offer. Do not assume. "The smart thermostat stays" written into the contract costs nothing and prevents an argument at the walkthrough.

The features that are genuinely worth having here

A learning thermostat. The one nearly everyone should have. It is inexpensive, it conveys, buyers understand it, and in a climate with a long heating season the savings are real. Mass Save has offered rebates on qualifying models.

Leak detection. Underrated, and the best value on this list for New England specifically. Small sensors near the water heater, washing machine, dishwasher and any basement plumbing cost very little. A whole-house automatic shutoff valve costs more and does more — it closes the main when it detects a leak.

Water damage is among the most common and most expensive homeowner claims, and a burst pipe in a January cold snap in an unoccupied house is a genuinely catastrophic loss. Some insurers offer premium discounts for automatic shutoff systems; ask yours.

Smart smoke and CO detectors. Massachusetts requires working detectors and a certificate at sale. Interconnected units that notify your phone are a straightforward safety improvement, particularly for a second home or for anyone who travels.

Video doorbells and cameras. Buyers expect them now, in the way they came to expect central air. They rarely add measurable value, but their absence is increasingly noticed.

Smart locks, chiefly for the practical reason that they end the key-handover problem and let you give timed access to a contractor or a cleaner.

What does not add value

Whole-house proprietary automation systems. Expensive, frequently dated within a few years, sometimes tied to a company that no longer supports them, and often requiring a specialist to modify. A buyer inherits a system they did not choose and cannot easily change. These can be a net negative.
Voice assistants, which are personal property and cost almost nothing to replace.
Smart appliances, whose connected features are rarely used and which are valued at resale as appliances.
Anything requiring an ongoing subscription to function at all. A buyer sees a bill, not a feature.

The rule that actually matters: open standards

Choose devices that work on widely-supported open standards rather than a single manufacturer's closed ecosystem. Technology that a future owner can maintain, replace piecemeal and integrate with whatever they already use has durable value. Technology that requires one company to stay in business and stay interested does not.

The graveyard of discontinued home-automation platforms is large. Assume anything you install will outlive its manufacturer's enthusiasm for it.

Documentation is the cheap part

If you have installed anything, leave the buyer:

A list of what is installed and what conveys.
Model numbers and where each device is.
How to transfer accounts, and instructions to remove your credentials.
Manuals, or links to them.
Anything wired, marked on the panel.

And remove your own accounts before closing. Handing over a camera system still linked to your phone is a privacy problem for both parties.

What a buyer should ask

Which devices convey. Whether anything requires a subscription. Whether the system is proprietary. Whether there is wiring involved, and where it goes. And — for older houses — whether any of it was installed in a way that would concern an electrician, because smart switches in a house with knob-and-tube wiring are a question, not a feature.

The honest summary

Buy the thermostat and the leak sensors. They pay for themselves and they solve real New England problems. Treat everything else as something you buy because you want it, not because it will come back at resale — and prefer open standards so the next owner is not stuck with your choices.