Can bed bug infestations reduce a home's value?

The most useful fact in this entire conversation is a biological one: bed bugs feed solely on the blood of people and animals while they sleep (University of Kentucky Entomology, ENTFACT-636). They do not chew wood, wiring, insulation, or drywall, and they build no structure of their own beyond hiding in existing cracks and seams. The CDC describes them plainly as small, flat, parasitic insects — nothing in that description involves consuming or weakening a building material.

That matters directly for a resale conversation, because it means there is no repair scope to point to. A termite finding triggers a contractor-level structural conversation. A bed bug finding, once resolved, triggers nothing structural at all — the house a buyer is purchasing is exactly as sound as it would have been without the infestation.

The rest of this cluster explains that pest damage generally affects resale value through two honest channels: a wood-destroying-insect inspection finding, and stigma from a disclosed infestation history. Bed bugs only ever touch the second channel. There is no wood-destroying-insect inspection line item for bed bugs, no lender requirement, and no repair-negotiation trigger.

What remains is stigma: the peer-reviewed stigmatized-property literature (Springer, Journal of Housing and the Built Environment, 2019) finds general consensus that disclosed stigmas reduce a property's sale potential and lengthen time-on-market. Bed bugs are a plausible fit for that general pattern, but there is no bed-bug-specific hedonic resale study measuring the size of the effect. The mechanism is sound; the magnitude is not something anyone has actually measured.

A frequently cited paper here is Xie et al. (PNAS, 2019), which models bed bug disclosure policy in rental housing. It is worth being precise about what that paper actually is: a predictive mathematical model calculating the theoretical costs of vacancy, treatment, and tenant turnover under different disclosure rules — not an empirical measurement of how much a home's sale price drops after a bed bug history. Citing it as a resale-value figure misrepresents what the study measured. There is, at present, no published number for 'how much bed bugs cost your home's value,' and that absence is itself the honest answer.

New Hampshire has no bed-bug-specific disclosure statute. A known, active infestation is governed by the same general rule that covers any other known material physical condition: RSA 331-A:25-b requires sellers and agents to disclose what they actually know, with no duty to go looking for problems that aren't apparent. That puts a documented, resolved bed bug history in the same legal category as any other disclosed-and-resolved issue — it is not a special, more damaging category of defect under New Hampshire law, whatever the marketing copy implies.