Executive Summary: Key Legal and Evidentiary Issues

• Characterization of the 1956 Policy as a non-contractual municipal permission that did not convey any proprietary interest in the City’s water lot.
• Absence of any clear and unambiguous promise or assurance by the City that it would refrain from enforcing, varying, or revoking the 1956 Policy.
• Evidence that the association itself understood it had no legal rights in the water lot and only a “hope” the City would not interfere with its dock use.
• Failure of the appellant to satisfy the elements of proprietary estoppel as articulated in Cowper-Smith v. Morgan, including the need for an assurance capable of grounding an equitable interest.
• The City’s long period of inaction and acquiescence being insufficient, on its own, to create an easement or proprietary right over public land.
• Appellate deference to the trial judge’s factual findings, with no palpable and overriding error identified to justify interfering with the dismissal of the claim.

Background and parties
The dispute in Grape Island Property Owners Association Inc. v. Orillia (City), 2026 ONCA 63 arises from long-standing use of a City-owned water lot on Lake Simcoe by owners of cottages on Grape Island. The appellant, Grape Island Property Owners Association Inc., is a corporate vehicle representing the island property owners. The respondent is the Corporation of the City of Orillia, which owns the water lot adjacent to the mainland and is responsible for regulating access and structures such as docks in that area. The litigation centres on whether the association acquired any enduring property rights—specifically an easement—over the City’s water lot by way of proprietary estoppel, based on decades of municipal tolerance of the association’s docks.

Origins of the dock arrangement
In 1956, the City of Orillia adopted a resolution that became known as the 1956 Policy. Under this policy, the City gave Grape Island property owners permission to install a seasonal dock on the City-owned water lot on Lake Simcoe. The association installed a dock pursuant to this permission and continued to do so each season from 1956 to 2016, essentially without restriction. Over time, the practice expanded beyond what had been expressly permitted. From about 1962 onward, the association also installed a second dock on the water lot annually, despite having no explicit City authorization to do so. The municipality did not initially object, and the association came to rely on this permissive environment to service its members’ access needs between the island and the mainland. Crucially, however, the 1956 Policy was not framed as a contract or as a grant of a property interest. It functioned as a municipal resolution allowing use, on terms the City remained free to enforce, modify, or revoke.

Regulation of the docks and breakdown of the relationship
The relationship between the parties began to change in 2016. That year, the City decided to end the practice of allowing two docks and limited the association to one dock on the water lot. This marked a departure from decades of relatively hands-off tolerance of the association’s expanded use. In 2017, the association applied for a formal licence of occupation in respect of the water lot, seeking a more secure legal footing for its use. The City did not grant this licence. Nonetheless, it continued to allow the association to install and use a dock each season, but now subject to significant restrictions on the dock’s configuration and use. Tensions escalated further in 2020, after the association advised the City that it would restrict the dock’s use to association members only. In response, the City repealed the 1956 Policy altogether. It then installed its own City-owned dock on the water lot for public use and prohibited the association from installing its own dock going forward. This municipal response framed the conflict squarely as one between a private group seeking quasi-exclusive use and the City’s control of public waterfront infrastructure.

The proprietary estoppel claim at trial
In 2019, before the 1956 Policy was rescinded, the association commenced an action asserting proprietary estoppel. It argued that, through the City’s decades-long acquiescence and the original 1956 Policy, it had effectively acquired an easement or equivalent proprietary right over the water lot, entitling it to maintain and control its docks. The trial judge considered the claim under the established three-part test for proprietary estoppel articulated by the Supreme Court of Canada in Cowper-Smith v. Morgan, 2017 SCC 61. That framework requires (1) a representation or assurance made to the claimant; (2) reasonable reliance on that assurance; and (3) a detriment suffered as a result of the reliance, such that it would be inequitable for the promisor to resile. The trial judge held that the first element—an assurance capable of grounding an equitable interest—was not made out. He found that the 1956 Policy was not contractual in nature and did not purport to transfer or convey any interest in the City’s property. There was no promise that the City would refrain from strictly enforcing the policy, nor any guarantee that it would never amend or revoke the resolution. The judge further found that the association subjectively understood the fragility of its position: in its own words, it had only a “hope” that the City would continue to tolerate its use of the water lot. That understanding undercut any claim that the association reasonably believed it held an easement or enduring right. On this basis, the trial judge concluded that the elements of proprietary estoppel were not satisfied and dismissed the action. He also issued an alternative analysis that referred to this court’s earlier decision in Kosicki v. Toronto (City), 2023 ONCA 450, although that alternative reasoning ultimately did not drive the appellate outcome.

The Court of Appeal’s analysis and result
On appeal, the association raised several issues attacking the trial judge’s application of proprietary estoppel principles and his treatment of the City’s long-standing inaction. The Court of Appeal heard argument from the appellant but dismissed the appeal without calling on the City to respond, signalling that the panel saw no arguable basis to disturb the result. The court upheld the trial judge’s key factual findings that the 1956 Policy was not contractual, did not convey a proprietary interest, and did not amount to an unambiguous assurance that the City would maintain the policy or refrain from enforcing it. The appellate court emphasized that the association itself knew it had no rights in the water lot and only hoped the City would continue not to interfere, which was incompatible with the existence of a clear and enforceable assurance. The court held that these findings were amply supported by the record and disclosed no palpable and overriding error. Given the deference owed to trial findings of fact and mixed fact and law, those conclusions were determinative of the proprietary estoppel claim. The City’s historical failure to strictly enforce the 1956 Policy, or to object sooner to the second dock, could not substitute for the legally required clear and unambiguous promise needed to establish proprietary estoppel. The court also noted that the trial judge’s alternative analysis—referencing Kosicki, a decision later overtaken by a 2025 Supreme Court ruling—did not affect the outcome and therefore required no appellate comment. In the result, the Court of Appeal dismissed the association’s appeal and confirmed that no easement or proprietary right had been acquired over the City’s water lot. The successful party was the Corporation of the City of Orillia, and the court ordered that the City receive costs fixed at a total of $35,000, all-inclusive, with no other monetary award or damages granted.