1. Introduction
Riley v Daly addresses the intersection of disputed property boundaries, competing survey evidence, and residential surveillance. Its central procedural lesson is that a landowner’s failure to establish an agreed boundary conclusively does not automatically establish the neighboring owner’s competing survey line. Separately, evidence of extensive surveillance of a neighbor’s backyard and swimming pool can raise factual questions under Civil Rights Law § 52-a despite an asserted security justification.
The plaintiffs, Timothy J. Riley and others, and the defendants, John C. Daly and others, owned adjoining properties in a four-lot subdivision in Malta, Saratoga County. Plaintiffs purchased their northern parcel in December 1996. They understood, in agreement with the former owner of the southern parcel, that a tree line marked the boundary. The former neighbor observed plaintiffs maintaining the woods on their side and later helped construct plaintiffs’ garage approximately 15 feet from the tree line.
Defendants purchased the southern property in 2004. In 2006, they installed a chain-link fence between the tree line and plaintiffs’ garage. Plaintiffs considered that fence an intrusion onto their property. In 2011, plaintiffs erected a split-rail fence approximately two feet from defendants’ fence. The ensuing dispute concerned an area extending approximately 230 feet along the boundary.
Following incidents in 2018, plaintiffs brought claims for adverse possession, practical location of the boundary, invasion of privacy, and trespass. Defendants brought a separate action asserting timber trespass, trespass, conversion, negligence, declaratory relief concerning ownership, and encroachment. The actions were consolidated.
After disclosure, both sides sought summary judgment. Supreme Court denied plaintiffs’ motion, accepted defendants’ surveyed boundary, and dismissed plaintiffs’ complaint. The appeal principally concerned whether the boundary and surveillance disputes could properly be resolved without a trial, together with the treatment of defendants’ timber-trespass claim.
3. Analysis
A. Precedents Cited and Their Influence
The opinion principally applies existing Third Department authority. The cited decisions supply the governing requirements and support the conclusion that unresolved factual disputes prevented judgment for either side on important issues.
Lounsbury v Yeomans, 139 AD3d 1230, 1231 (3d Dept 2016)
This decision supplies the basic practical-location rule: a boundary’s practical location, coupled with the parties’ acquiescence for more than ten years, conclusively establishes its location. The court also cited RPAPL 501 (2) and CPLR 212 (a). The precedent made the duration of the parties’ acceptance essential; a longstanding physical feature alone was insufficient.
McMahon v Thornton, 69 AD3d 1157, 1160 (3d Dept 2010)
This authority provides the doctrine’s more specific evidentiary requirements: a clearly demarcated boundary and mutual acquiescence such that the line is “definitely and equally known, understood and settled.” It explains why plaintiffs’ own understanding, even supported by their former neighbor, did not conclusively establish the requisite shared understanding throughout the necessary period.
Kennedy v Nimons, 178 AD3d 1302, 1303 (3d Dept 2019)
The court cited this decision when emphasizing that plaintiffs demonstrated assent by defendants’ predecessor, but not by defendants. Its role was to support scrutiny of whether the evidence established the necessary mutual acceptance across the relevant ownership history.
The opinion does not announce that a predecessor’s agreement is categorically irrelevant. Rather, the predecessor sold in 2004, before plaintiffs’ claimed period beginning in December 1996 would have reached ten years, and plaintiffs’ submissions did not conclusively bridge that evidentiary gap.
Stamp v 301 Franklin St. CafÃ, Inc., 135 AD3d 1209, 1211–1212 (3d Dept 2016)
The court cited this authority in concluding that plaintiffs had not established a definitely understood and settled boundary for the required period. As used here, it reinforces that practical location requires proof satisfying the doctrine’s full requirements, not merely evidence of an apparent dividing feature or historical maintenance.
Kennedy v Nimons, 121 AD3d 1229 (3d Dept 2014)
This earlier decision appeared in two distinct parts of the analysis. At page 1232, it supported denying plaintiffs judgment on practical location. At page 1231, it supported finding a triable boundary dispute in light of the competing evidence.
That dual use illustrates the opinion’s central distinction: evidence may be insufficient to establish one party’s proposed boundary conclusively while still being sufficient to prevent the other party from obtaining judgment.
Robert v Shaul, 62 AD3d 1127, 1128–1129 (3d Dept 2009)
This case also supported the conclusion that plaintiffs had not conclusively demonstrated the requisite duration and mutual understanding. Its placement reinforces that the denial of plaintiffs’ motion followed an established practical-location framework rather than a newly created test.
DiLorenzo v Juan Ortoo Holdings, Ltd., 160 AD3d 1184, 1187 (3d Dept 2018)
The court cited this decision as additional support for denying defendants judgment on the surveyed boundary. Its relevance was procedural: material conflicts in the boundary evidence could not be resolved conclusively on the submissions before the court.
Meadows v Eckert, 218 AD3d 1351, 1353 (4th Dept 2023)
Cited generally, this Fourth Department decision supported allowing the statutory backyard-surveillance claim to proceed. The court’s principal reasoning nevertheless rested on Civil Rights Law § 52-a, its legislative history, and the evidence of the cameras’ actual coverage.
B. Practical Location: Mutual Acceptance and Timing Matter
The practical-location doctrine can make a boundary conclusive through sufficiently prolonged, mutual recognition. Plaintiffs therefore needed to establish more than their belief that the tree line separated the properties.
Two weaknesses prevented judgment in their favor. First, plaintiffs acquired their parcel in December 1996, but defendants erected the disputed fence sometime in 2006. Plaintiffs did not establish whether construction occurred after the relevant period would have run in December 2006. The timing mattered because the fence’s placement was inconsistent with acceptance of the tree line.
Second, plaintiffs’ evidence established agreement with the former neighbor but did not establish defendants’ assent after their 2004 purchase. Plaintiffs argued that wooden survey stakes along the tree line made the boundary known to defendants. Yet defendants’ construction of a fence on what plaintiffs regarded as their side undermined the proposition that both parties definitely understood and accepted that line.
The court accordingly upheld denial of plaintiffs’ motion. Importantly, it did not treat that failure as conclusively defeating the practical-location claim itself: the decretal language reinstated plaintiffs’ second cause of action. Failure to prove entitlement to immediate judgment is not equivalent to proof that the claim cannot succeed after factual disputes are resolved.
C. Competing Surveys: Expert Support Is Not Necessarily Conclusive
Defendants initially satisfied their moving burden through a professional surveyor’s affidavit and several survey maps. Their surveyor relied on deeds, the developer’s earlier survey, and an April 2018 inspection. He also reviewed plaintiffs’ October 2018 survey and characterized the three surveys as “substantially identical” in locating the boundary.
That evidence was sufficient to require a substantive response, but plaintiffs provided one. They identified different bearing directions in the competing surveys and maintained that the discrepancy would move the boundary approximately ten feet. Given the narrow disputed strip, that was potentially material rather than a merely technical difference.
Plaintiffs also alleged that defendants had removed the natural boundary and wooden stakes before defendants’ surveyor inspected the site. Those allegations challenged the completeness of the conditions observed during the inspection. The court did not find that the alleged removal had occurred; it treated the competing accounts as part of the unresolved evidentiary record.
The holding is therefore narrower than a rule that any disagreement between surveys defeats summary judgment. Here, the differing bearings, claimed physical displacement, and conflicting accounts concerning historical markers collectively prevented a conclusive determination. The court neither rejected defendants’ survey outright nor adopted plaintiffs’ survey.
D. Backyard Surveillance: A Security Explanation Does Not Eliminate Factual Disputes
Civil Rights Law § 52-a (1) creates a private damages action addressing specified surveillance of residential backyards. As quoted in the opinion, it concerns a video imaging device installed or affixed on adjoining property for the purpose of recording backyard recreational activities without the owner’s written consent, accompanied by an intent to harass, annoy, alarm, or threaten a person or property.
Defendants maintained that their cameras monitored their property and the disputed boundary after alleged trespass, theft, and harassment by plaintiffs. They denied any harassing purpose and characterized the cameras as protective measures.
Plaintiffs countered with photographs from defendants’ cameras showing their backyard and swimming pool, including an image of their minor daughter. They also asserted that information obtained through camera access and disclosure revealed thousands of videos or photographs extending beyond the disputed boundary area.
The court read that evidence alongside the statute’s legislative history. The supporting memorandum described concern about a family whose young children were subjected to constant camera surveillance in their own backyard by a neighbor. Plaintiffs’ evidence, the court reasoned, fit squarely within that protective purpose and raised factual questions sufficient to preserve the claim.
The decision does not make every neighboring security camera unlawful. The statutory conditions—including purpose and intent—remain significant. Nor does it hold that photographing a child automatically establishes liability, or separately decide whether still photographs alone satisfy the statute’s moving-image language. The images here were evidence bearing on the cameras’ coverage and the nature of the surveillance.
The practical lesson is that a professed security purpose cannot conclusively resolve a claim where the actual surveillance evidence permits a competing inference about its purpose and intent.
E. Timber Trespass: Ownership and Conduct Remained Disputed
Defendants’ RPAPL 861 claim alleged that plaintiffs cut, removed, or destroyed timber within the disputed area. Plaintiffs sought dismissal, arguing in part that the record contained no proof that they removed timber from defendants’ land.
The appellate court assumed, without deciding, that plaintiffs met their initial burden. Even on that assumption, defendants’ opposing affidavits and expert forestry report raised a factual issue. Independently, the unresolved ownership of the disputed strip prevented judgment for defendants.
Thus, neither side established entitlement to judgment. The court left open both the location of the relevant ownership boundary and the factual basis for imposing timber-trespass liability. It did not determine statutory damages or resolve the parties’ competing accounts of the alleged removal.
4. Potential Impact
Boundary Litigation
The decision reinforces the need for precise historical proof when invoking practical location. Relevant evidence includes the boundary’s physical demarcation, each owner’s understanding, the dates of ownership changes, and the timing of conduct inconsistent with acquiescence. An approximate year may be insufficient where the required period turns on a particular month.
For survey disputes, the opinion emphasizes substance over labels. An expert’s description of maps as substantially identical does not eliminate a specifically identified discrepancy that could materially change the line’s position. Conversely, the decision does not authorize parties to defeat summary judgment through an unexplained assertion that surveys differ.
Residential Privacy
The privacy ruling gives practical force to § 52-a’s protection of backyard recreation. Camera placement, actual field of view, the volume of recording, and coverage beyond a disputed boundary may help distinguish legitimate property monitoring from potentially actionable surveillance. The ruling is particularly relevant where claimed security needs coexist with extensive observation of private family activities.
Summary-Judgment Practice
The broader procedural significance is the court’s separate treatment of competing motions. Rejecting one party’s proposed basis for judgment does not relieve the opposing party of proving its own entitlement. That distinction preserved the boundary dispute rather than forcing a premature choice between the tree line and defendants’ survey.
The opinion principally applies existing doctrine. Its significance lies in the combination and application of those principles, not in announcing automatic liability for surveillance or a new method of fixing property boundaries.