The pattern is consistent enough to name: it starts within the first month, usually the first two weeks, and it starts with something small. A sound the house makes at a specific hour. A room that never quite feels settled into, no matter how the furniture is arranged. A feeling of being watched from a doorway, or a pet that stops at a threshold and won't cross it. None of these arrive as an event. They arrive as an accumulation — three or four small things in the same house, in the same window of time, that individually mean nothing and together start to feel like a pattern.
This is also, worth saying plainly, the single most vulnerable stretch for misreading a house. Every creak is new to you. You don't yet know which floorboard talks back to a temperature swing, which pipe knocks when the water heater kicks on, which shadow at 6pm in October is just the neighbor's tree. A new house hasn't earned your trust yet, and unfamiliarity produces its own kind of static. That's not a reason to dismiss what you're noticing. It's a reason to do the next part carefully before you decide what it means.
Start with the house's systems — the most common source and the easiest to confirm. HVAC cycling on and off produces footsteps, thumps, and door-adjacent pressure changes as forced air pushes through ducts and the building's pressure shifts room to room; stand near the unit and listen for the sound you've been hearing to line up with a cycle. Old or ungrounded wiring can produce a low-level electromagnetic field that some people report as unease, pressure at the temples, or a feeling of being watched — an inexpensive EMF meter run along outlets and fixture boxes will tell you in minutes whether that's live in your walls. Plumbing under pressure, and pipes expanding or contracting with hot and cold water, account for a large share of knocking and tapping reports, especially right after the water heater fires.
A house also physically moves. Wood framing, especially in a house new to you or recently renovated, keeps acclimating to temperature and humidity for months, and settling produces genuine creaks, pops, and the occasional sharp crack that can sound like a footstep or a knock. Drafts around old window frames, exterior doors, and attic hatches move air in ways that read as a presence in a doorway or a cold patch tied to no duct.
Then check your own state, because a meaningful share of reported phenomena originate there and it's not a dismissal to say so. Pareidolia — the mind's tendency to find faces and figures in random visual noise — turns a coat on a hook or a shadow on a textured ceiling into a shape that wasn't there. Hypnagogia and sleep paralysis, the transitional states entering and leaving sleep, produce some of the most vivid and consistently reported experiences on record: a felt presence in the room, pressure on the chest, an inability to move, sometimes a voice or a touch, while the sleeper is neurologically still partway in a dream. Exploding head syndrome is a real, documented phenomenon in which a loud bang or shout is perceived at the exact moment of falling asleep, with no external source. And infrasound — sound below the threshold of hearing, produced by HVAC systems, traffic, or wind across a chimney — has been shown to produce nausea and dread with no audible sensation attached at all. None of this means what you experienced wasn't real to you. It means it has to be checked before it can be filed as unexplained.
Work all of that honestly and most reported phenomena resolve, or at least soften into something you can live with. A minority don't. What's left, in the filings this registry treats as significant, tends to share a shape: it repeats on a schedule rather than randomly, it's witnessed independently by more than one person who wasn't primed by the others' account, it's tied to a specific location in the house rather than to your mood or the time you've had, and it holds up after the mundane sources — HVAC, wiring, water pressure, drafts — have been checked and ruled out rather than just assumed innocent.
That category deserves the same respect this registry gives every filing that's done the work: it doesn't require you to have an explanation, and it doesn't require the registry to endorse one, only to record what happened, where, and when, so the next person who lives in that house has it. A house doesn't have to be proven haunted for a resident's account of it to matter. That's the premise the registry runs on, and it's the reason to keep a record even when you're not sure what you're recording.
Get a baseline before you do anything else. Walk the house at the hour the phenomenon tends to occur, note the temperature, the HVAC state, whether water is running anywhere, whether wind or traffic outside is doing anything notable. If it's a sound, try to reproduce it — run the water heater, cycle the thermostat, open and close the door in question — and rule it in or out on purpose rather than by memory later.
If someone else lives with you, don't describe what you experienced before asking what they noticed. A shared, independently arrived-at account is worth far more than one person's report confirmed by someone who already heard the story. If you're alone in the house, a simple time-stamped note — voice memo, phone log, whatever's fastest — beats a recollection assembled the next morning, which memory tends to smooth into something either scarier or more explainable than what actually happened.
If you're newly moved in, it's also worth finding out what you can about the house's own history — prior owners, a long vacancy, any work done right before you arrived. Not because history explains a phenomenon, but because context helps you tell a new-house adjustment problem from something that predates you.
This is general information, not legal advice, and disclosure law varies by state — talk to a real estate or disclosure attorney for anything address-specific. In California, Civil Code §1710.2 requires a seller to disclose a death on the property within the prior three years if a buyer asks, or if the fact is otherwise material; it says nothing about hauntings directly, but it's the closest thing state law has to a framework for what a seller owes a buyer about a property's past, and it's worth knowing whether your state has an equivalent.
The one case worth knowing regardless of where you live is Stambovsky v. Ackley, 572 N.Y.S.2d 672 (N.Y. App. Div. 1991) — the New York court that let a buyer rescind his purchase after learning the seller had spent years publicly telling neighbors and reporters that the house was haunted. The court's actual holding wasn't a ruling on the supernatural; it was that a seller who creates a public reputation for a property can't then withhold it from a buyer, and for the narrow purpose of allowing rescission, the court held the house 'is haunted' as a matter of law. It's a case about disclosure and public representation, not proof — but it's real, it's citable, and it's the one this registry points to when the question of what a seller owes a buyer comes up.
Before you do anything else — before you call someone, before you decide what you believe — search your address in the registry. Someone who lived in the house before you, or in a house that shares its lot's history, may have already filed something that reads like a piece of what you're noticing now. That alone won't tell you what's happening. It will tell you whether you're the first person to notice it, which changes how you weigh everything else.
And if you've worked the checklist honestly and something is still there — logged, dated, witnessed, ruled-out — write it down and file it. Not for validation. For the resident who moves into that house after you, who won't have your baseline, your notes, or your two weeks of listening for the pattern, unless you leave it for them. That's what this registry is for.
Give it at least a full season, if you can. A house's sounds and behavior change with temperature and humidity, and what feels alarming in week one is often just the building acclimating or you learning its normal. Persistent, repeatable phenomena that survive a change of season and a worked mundane checklist are a different category than first-month unfamiliarity.
It rarely hurts to ask the previous owners or a longtime neighbor about the house's history — prior deaths, prior complaints, known issues with the systems — since it can help you sort new-house adjustment from something that predates you. Whether to raise it with your agent is a personal call; it won't undo a completed sale, but a factual, dated account is more useful to you either way than an impression.
Most states don't require disclosing a reputation for hauntings the way they require disclosing physical defects, though a handful of states and specific fact patterns — like the public representations at issue in Stambovsky v. Ackley — can create disclosure obligations. This is general information, not legal advice; a disclosure attorney in your state can tell you what applies to your specific situation.
Check the record for your address — or add what happened, for whoever lives there next.
General information, not legal advice. Laws change and turn on details — for a real decision, talk to a licensed professional in your state.