Background
Owners of Brooklyn property on Union Street claimed that excavation at adjoining President Street property damaged their building. They sued the neighboring owner and excavation contractor, relying in part on New York City Building Code provisions requiring those who cause excavation to preserve and protect adjoining structures. After discovery, the plaintiffs sought summary judgment on liability; the neighboring owner argued that the three-year property-damage period had expired.
Supreme Court denied both sides’ motions. The Second Department reversed on liability and affirmed rejection of the limitations defense. The plaintiffs submitted a professional engineer’s affidavit linking the excavation to their building damage and evidence that damage continued while the excavation project remained ongoing. The defendants did not adequately rebut the engineer’s account or establish that all actionable damage fell outside the limitations period.
The Court’s Holding
Building Code § 3309.4 imposes strict or absolute liability on a person who causes an excavation to be made. The plaintiffs showed that the owner and contractor caused excavation under the statutory license framework and that the work proximately damaged the adjacent property. Unlike an ordinary negligence claim, liability did not turn on proof that the defendants failed to use reasonable care once the statutory conditions and causal link were established.
The defendants’ reliance on the neighboring building’s allegedly poor preexisting condition did not defeat proximate cause. Under the excavation rule, that evidence may affect the amount of recoverable damages, because defendants are not responsible for deterioration they did not cause, but it does not erase liability for excavation-related harm. Continuing damage within the three-year period also prevented summary judgment on the theory that the claim accrued entirely when earlier symptoms first appeared.
Key Takeaways
- Building Code § 3309.4 imposes strict or absolute liability on a person who causes excavation that damages adjoining property.
- A neighboring building’s poor preexisting condition affects damages but does not defeat excavation causation.
- Evidence of continuing damage during the limitations period can preserve a property-damage claim.
Why It Matters
Developers, owners, contractors, and insurers should treat adjacent-property protection as a primary project risk. Preconstruction surveys, crack and elevation monitoring, vibration data, underpinning plans, access agreements, engineer reports, and prompt incident notices are critical. Contractual indemnity and insurance provisions allocate financial exposure among project participants, but they do not eliminate the code duty owed to the neighboring property.
Adjacent owners should document baseline and progressive conditions with dated photographs, engineering inspections, repair records, and a timeline tied to excavation phases. Waiting for the project to finish can create limitations disputes even when movement continues. Defense experts should distinguish preexisting damage from new or worsened conditions quantitatively. The decision makes that distinction principally a damages question after statutory liability and excavation causation are shown.
The decision should be applied with close attention to procedural posture. A CPLR 3211 ruling asks whether pleaded facts fit a legal theory or whether qualifying documents conclusively defeat them; summary judgment instead asks whether admissible proof leaves a material dispute; and review after a nonjury trial gives special weight to credibility findings. Practitioners should use the opinion for the proposition it actually resolves and preserve the evidence the panel treated as decisive. Before relying on the holding in a new matter, counsel should compare the governing instrument, chronology, motion record, and requested remedy with those before the panel. Pleadings should separate genuinely independent theories, while affidavits should establish each required element rather than merely identify weaknesses in the opponent’s proof. Transactional and in-house teams can turn the result into a practical control by revising forms, retention policies, and escalation checklists around the specific failure or proof gap identified by the court. Early collection of signed agreements, notices, delivery records, photographs, expert materials, title documents, and contemporaneous communications will usually be less expensive than reconstructing the record after litigation begins. The opinion therefore offers both a legal rule and a file-management lesson: the party able to prove the operative events in the form the CPLR requires is best positioned to obtain an early, durable result.