New Hampshire · Construction-defect rights
Here is what you have, and here is how to keep it.
In New Hampshire you have 8 years from substantial completion to sue anyone involved in creating a real-property improvement, regardless of discovery. The 8-year cap does not apply where there was fraudulent misrepresentation or fraudulent concealment, and it extends if the work carries a written warranty longer than 8 years.
What you have
The deadline does not protect a builder who concealed the problem.
In New Hampshire, a claim of fraud, concealment or serious misconduct is not cut off by the ordinary construction deadline (N.H. Rev. Stat. Ann. § 508:4-b, V(a)).
Past the deadline for a defect? A contract claim may still be alive.
The construction deadline here bars tort claims — but if the improvement is expressly warranted in writing for longer than 8 years, the limitation extends to match (§ 508:4-b, III)Someone told “you’re past the deadline” may still have a live contract or warranty claim, and typically no one volunteers that.
If the builder or developer still controls the property, the deadline isn’t theirs to raise.
The exception most homeowners would never think to ask about: nothing affects the liability of a person in actual possession or control as owner or lawful possessor (§ 508:4-b, VI) It matters most where a builder still controls part of a project — a phased subdivision, an unfinished condo association.
THE DEADLINE DOES NOT PROTECT FRAUD OR CONCEALMENT. New Hampshire's eight-year bar (RSA 508:4-b) falls away for fraudulent misrepresentation or fraudulent concealment of the facts your claim rests on, and it extends to match any written warranty longer than eight years. A party still in possession or control of the property is not shielded either.
The deadline
8 years to bring a construction-defect claim
N.H. Rev. Stat. Ann. § 508:4-b, I
8 years from substantial completion (N.H. Rev. Stat. Ann. § 508:4-b, I). FRAUD CARVE-OUT: the limitation "shall not apply to actions involving fraudulent misrepresentations, or ... the fraudulent concealment of material facts upon which a claim might be based" (§ 508:4-b, V(a)). If the work carries a written warranty longer than 8 years, the period extends to match (§ 508:4-b, III). Nothing affects the liability of a person in actual possession/control as owner or lawful possessor (§ 508:4-b, VI). For a phased project the clock for whole-project systems starts at completion of all phases (II); certain nuclear/hazardous improvements are excluded (V(b)).
“Except as otherwise provided in this section, all actions to recover damages ... arising out of any deficiency in the creation of an improvement to real property, including ... the design, labor, materials, engineering, planning, surveying, construction, observation, supervision or inspection of that improvement, shall be brought within 8 years from the date of substantial completion of the improvement, and not thereafter.”
Before you sue: We have not yet confirmed whether New Hampshire requires written notice to the builder before a lawsuit. Some states do, and skipping it can get a case stayed or dismissed. Ask a New Hampshire attorney before filing.
What to do now
Write it down the day you notice it. Photograph it with something for scale. Note the date, the room, and what you saw. If it gets worse, photograph it again - a sequence is far stronger than one picture. Keep every message with the builder. You are not starting a fight; you are keeping the option open. Some states require written notice to the builder before you can sue. We have not confirmed whether New Hampshire does, so check with a licensed attorney before filing. A record made at the time is what most people are missing later.
The same defect, a different answer next door
The construction-defect deadline is a state-by-state accident of geography. The identical crack in the identical house can be dead in one state and live in another.