NH Seller Disclosure: A Practical Guide

What does the New Hampshire Seller’s Property Disclosure require?

New Hampshire sellers are expected to provide a written property disclosure before a buyer signs a purchase agreement. The form covers known conditions across the property, including private water supply, sewage disposal, and insulation, and if you genuinely don’t know the status of those items, that lack of information must itself be disclosed in writing. Completing it accurately protects you and gives buyers the facts they need to make an informed decision.

Disclosure is one of the first conversations I have with every seller I work with. Not because it’s the most exciting part of selling a home, but because getting it right early prevents real problems later. Here’s what Northern New Hampshire sellers need to understand before they list.

What the NH Disclosure Form Actually Covers

The New Hampshire Seller’s Property Disclosure Statement is a standardized checklist of property conditions and known defects. According to HomeLight’s New Hampshire disclosure guide and Clever Real Estate’s NH disclosure overview, common categories include:

• Water supply (private well, municipal, shared)
• Sewage disposal (septic system, holding tank, cesspool, municipal sewer)
• Insulation (type, location, and whether any areas lack it)
• Roof condition and age
• Foundation and structural issues
• Heating systems
• Electrical and plumbing systems
• Hazardous materials (radon, arsenic, lead, asbestos)
• Boundary or easement issues
• Known defects, prior repairs, and permits for improvements

The form isn’t asking you to diagnose your home. It’s asking what you know. If you had a roof leak three years ago and had it repaired, that goes on the form. If you’ve never tested your well water, that goes on the form too, as an absence of information, not a clean bill of health.

As Nolo’s New Hampshire seller disclosure guide explains, New Hampshire law specifically requires written disclosure of private water supply, sewage system, and insulation status, and if a seller has no information about one of those items, that gap must still appear in writing.

Hazardous materials deserve special attention

Radon, arsenic, and lead are explicitly flagged in New Hampshire disclosure guidance as conditions that must be relayed to buyers before a purchase agreement is signed. If you have test results, good or bad, include them. If you’ve never tested, say so.

For homes built before 1978, there’s an additional federal requirement on top of the state form. The federal lead-based paint disclosure is a separate packet that must be provided to buyers, per federal law. If your home predates 1978, plan for both documents. A lot of Coös County’s housing stock falls into this category, so this comes up frequently in my transactions.

What This Looks Like for Coös County Sellers Specifically

Most properties in Berlin, Lancaster, Groveton, Colebrook, and the surrounding communities are on private wells and septic systems. That means the water and sewage sections of the disclosure form aren’t just checkboxes, they’re often the most scrutinized part of the package.

Before you list, I’d encourage you to gather whatever records you have on:

• Well logs or drilling records
• Septic design plans and pump-out history
• Water test results (arsenic and coliform are the ones buyers and lenders focus on most)
• Any remediation work done on the well or septic
• Permits and invoices for any repairs or improvements you’ve made

You don’t need to have all of this perfectly organized before we talk, but the more documentation you can pull together, the smoother the disclosure process goes. As HomeLight notes, permits, contractor invoices, and inspection reports are directly relevant to what the form asks about known defects and prior repairs.

Beyond water and septic, the disclosure categories that come up most often in older northern New Hampshire homes are:

This isn’t a complete list of everything the form covers, it’s the categories I see come up most in this market. Every property is different, and the only way to know what your specific disclosure should include is to go through the form carefully and honestly.

The disclosure form is not the whole picture

The form is a starting point, not a finish line. As Clever Real Estate’s NH disclosure guide points out, known defects, permit history, and hazardous conditions still need to be addressed separately if they’re material to the property and within your knowledge. Completing the form doesn’t replace the obligation to be honest about what you know.

I believe the best listing strategy starts with the truth. That’s not just an ethical position, it’s a practical one. Buyers who feel surprised after closing are the ones who call attorneys. Sellers who disclose accurately, document their repairs, and communicate clearly tend to close without drama.

Timing, Process, and a Few Practical Notes

When to complete the disclosure

The practical timeline is to complete the disclosure before the buyer signs the purchase agreement, which means before an offer is accepted, not during inspection negotiations. I tell sellers to treat the disclosure as a listing document, not a closing document. Have it ready when the home goes on the market.

Who handles closing in New Hampshire

In New Hampshire closings, the title company or closing attorney is typically selected by the buyer or the buyer’s lender. As a seller, you should expect to receive requests for payoff information, lien documentation, and ownership records relatively early in the transaction. Getting organized on the front end, including your disclosure paperwork, makes that process go more smoothly.

One more thing worth mentioning: wire fraud is a real risk in real estate transactions. Always verify any wiring instructions verbally with a known, trusted contact before sending funds. Never rely solely on emailed instructions, even if they look legitimate. If something feels off, stop and call.

Active recording devices during showings

Under NH RSA 91-A and general privacy norms, if your home has active security cameras, doorbell cameras, or audio recording devices, you should disclose that to buyers and their agents before showings. It’s a simple courtesy that avoids awkward conversations later.

Your specific disclosure situation depends on your home’s age, condition, systems, and history. That’s exactly the kind of conversation I walk through with sellers before we list, so nothing catches anyone off guard mid-transaction.

Frequently Asked Questions

What does the New Hampshire Seller’s Property Disclosure form have to include?

The form requires written disclosure of known conditions across a range of categories, including water supply, sewage disposal, insulation, roof, foundation, heating, electrical, plumbing, hazardous materials (radon, arsenic, lead), and boundary or easement issues. According to Nolo, sellers must cover known facts about the property’s condition rather than remaining silent on material issues.

Do I have to disclose a private well, septic system, or cesspool in New Hampshire?

Yes. New Hampshire law specifically requires written disclosure of the status of the property’s private water supply and sewage system. If you have no information about one of those items, for example, you’ve never had the well tested or don’t have septic records, that absence of information must still be disclosed in writing. Buyers and lenders in this market pay close attention to both.

What if I don’t know the age or condition of the insulation?

Disclose exactly that. New Hampshire’s disclosure requirements apply to insulation specifically, and if you lack information, that gap belongs on the form rather than being left blank. Leaving it blank or guessing can create problems later. Saying “unknown” is a legitimate and legally appropriate answer.

Do New Hampshire sellers have to disclose radon, lead paint, or arsenic?

Yes. New Hampshire disclosure guidance flags radon, arsenic, and lead as conditions that must be relayed to buyers before a purchase agreement is signed. If you have test results, include them. If you’ve never tested, disclose that. For homes built before 1978, a separate federal lead-based paint disclosure packet is also required under federal law.

Is the seller’s property disclosure required before an offer or before closing?

Before the buyer signs the purchase agreement, which in practice means before an offer is accepted. Sellers should complete the disclosure at listing time rather than waiting for inspections or negotiations. Providing it early gives buyers accurate information and reduces the risk of disputes after closing.

What happens if a seller forgets to disclose a known defect in New Hampshire?

Failing to disclose a known material defect can expose a seller to legal liability after closing. The disclosure obligation covers what the seller actually knows, it’s not a guarantee of the property’s condition, but knowingly omitting a material issue is a different matter. When in doubt, disclose and document.

Does a home built before 1978 require a separate lead-based paint disclosure?

Yes. Federal law requires sellers of homes built before 1978 to provide buyers with a lead-based paint disclosure and related information before the purchase agreement is signed. This is separate from the New Hampshire state disclosure form and applies regardless of whether you’ve ever tested for lead. Many Coös County homes fall into this category, so it’s worth planning for both documents from the start.

Getting the disclosure right isn’t complicated, but it does require honesty and some preparation. The sellers I work with who come to the table organized, with records, receipts, and a clear sense of what they know and don’t know, tend to have smoother transactions and fewer surprises.

If you’re thinking about listing a property in Northern New Hampshire and want to work through the disclosure process before you go to market, I’m glad to help. You can reach out through my website to schedule a conversation.

This article is provided for general informational purposes only and does not constitute legal, tax, or financial advice. Disclosure requirements, transaction terms, and closing costs vary by property and situation, confirm your specific obligations and numbers with a licensed New Hampshire real estate attorney, your tax advisor, your lender, or your closing officer. Nick DeMers is licensed through the New Hampshire Real Estate Commission. Equal Housing Opportunity.