The appellants owned property adjacent to the respondents' property in Fergus, Ontario.
The respondents held an easement over part of the appellants' property providing interior access to the upper floors and roof of their own building.
The respondents sought to renovate their property for commercial and residential use, which included widening a third-floor door frame to create a fire exit and replacing doors to comply with building and fire regulations.
The appellants interfered with the easement and the respondents applied for declaratory and injunctive relief.
The application judge declared the easement valid and ordered the appellants not to interfere with the respondents' rights.
The appellants appealed, arguing the renovations impermissibly changed the use of the easement and that ancillary rights were void under the rule against perpetuities.
The Court of Appeal dismissed the appeal.