Cloudflare co-founder and CEO Matthew Prince’s long-running battle with Park City neighbours over his planned 11,000-square-foot mansion took an unusual turn in 2024 when he sued Eric Hermann and Susan Fredston-Hermann over their two large Bernese Mountain dogs. Prince’s lawsuit alleged that the dogs, Sasha and Mocha, were frequently walked without leashes, had aggressively approached or chased people and had left dog waste on his property. The Hermanns denied that the dogs were aggressive and described them as well-behaved and nonaggressive. The dog dispute unfolded alongside the neighbours’ legal challenge to Prince’s proposed home, which they had opposed over issues including its size, height, design and compliance with Park City rules.
Cloudflare CEO’s mansion at the centre of the dispute
Prince and his wife, Tatiana, have sought to replace two existing homes at 220 King Road with a single residence overlooking Park City’s historic Old Town. The proposed home is roughly 11,000 square feet. The project received approval from the Park City Planning Commission in 2024, but the Hermanns and other residents challenged the approvals, arguing that the development did not comply with applicable land-use and historic-district requirements.The proposed design has also attracted debate over its appearance and scale. Park City Museum representatives supported the design, saying it drew inspiration from the city’s historic mining architecture, while opponents raised concerns about its size, height, roof, parking and relationship with the historic district.
Cloudflare CEO’s mansion at the centre of the dispute
How the dogs became part of the legal battle
In March 2024, Prince’s property company, Pesky Porcupine LLC, filed a lawsuit against the Hermanns concerning Sasha and Mocha. According to the complaint, the dogs were regularly taken along a pedestrian, bicycle and ski easement running through the Prince property, often without leashes. The lawsuit alleged that the animals had aggressively approached, chased and harassed people.Reports on the lawsuit also described allegations that the dogs had left faeces on Prince’s property. The claims were part of the legal dispute and were not established as facts by a court. The Hermanns rejected the characterisation of their pets as dangerous and said they were willing to clean up any dog waste if it occurred.
Neighbours denied the allegations
The Hermanns disputed Prince’s description of Sasha and Mocha, calling the dogs “well-behaved, polite and nonaggressive”. They also said they had not previously received complaints from Prince about the animals and questioned the timing of the lawsuit because they had challenged his mansion project shortly before it was filed.Eric Hermann described the lawsuits as part of what he considered an effort to pressure neighbours opposing the mansion. That was his characterisation of the dispute, rather than a finding by the court. Prince, meanwhile, said the dog lawsuit was about protecting his family and property.
Susan Fredston-Hermann with her two Bernese Mountain dogs, Sasha and Mocha. (Image: New York Post)
‘Save Sasha & Mocha’ stickers appeared
The dog dispute became a talking point in Park City, with “Free Sasha & Mocha” or “Save Sasha & Mocha” stickers appearing on cars and around the town. Local reporting described the stickers as a sign of support for the Hermanns’ dogs as the wider mansion dispute intensified.Prince also filed another lawsuit against the Hermanns in 2024 concerning an alleged encroachment involving a retaining wall near the properties. The Hermanns disputed the significance of that issue and questioned its timing.
Two mansion lawsuits were dismissed in 2026
The mansion dispute continued for years through administrative appeals and court proceedings. In January 2026, the Park City Council voted 3-1 to approve a consent agreement with Pesky Porcupine LLC. The agreement followed a change in Utah law that allowed municipalities to resolve certain land-use litigation through consent agreements.On September 23, 2026, Utah Third District Judge Richard Mrazik dismissed two lawsuits challenging earlier land-use decisions connected to the mansion. The judge ruled that those decisions had been superseded by the consent agreement.
Another legal challenge remains pending
The dismissal did not end the dispute. The Hermanns have a separate lawsuit challenging Park City’s use of the consent agreement, arguing that the agreement cannot eliminate their independent legal claims without their consent. That case remains pending, with the parties scheduled to return to court on December 29, 2026.Meanwhile, construction activity appears to have moved forward. TownLift photographed excavation at 220 King Road on September 16, 2026, at the site of the proposed residence.
A mansion fight that became unusually personal
The Park City dispute therefore involves several separate issues: the proposed 11,000-square-foot home, land-use and historic-district rules, property-boundary concerns and the separate lawsuit involving Sasha and Mocha. The allegations about aggressive behaviour and dog waste remain allegations from the Prince side of the dispute, while the Hermanns have denied them. As of September 29, 2026, two mansion-related lawsuits had been dismissed, but a separate legal challenge remained active.