CHIPPING CAMPDEN, England — The Chipping Campden Town Council has passed a sweeping municipal ordinance requiring local property owners to register, measure, and obtain permits for any echoes generated on their premises that deflect onto neighboring land.

The "Acoustic Encroachment and Echo Registry Bylaw," which passed on Thursday by a 5-2 vote, aims to curb what councilors have termed "unlicensed vibrational trespass." Under the new framework, residents have until the end of the quarter to document the decay rate, direction, and volume of recurrent sounds—such as dog barks, lawnmower ignitions, and outdoor conversations—that reverberate off adjacent structures.

"Property ownership has traditionally been viewed in two dimensions, but we must adapt to the realities of modern acoustic density," said Town Councilor Alistair Vance, who championed the legislation following a year-long dispute between two residents over a bouncing hedge-trimmer noise. "If you emit a sound on your property, and that sound relies on your neighbor’s dry-stone wall to complete its auditory cycle, you are effectively using their private infrastructure without a license."

Under the guidelines, any sound that strikes a neighboring surface and returns to its source at a volume exceeding 35 decibels must be covered by a Class A Acoustic Easement, priced at £140 annually. Alternatively, residents may install council-approved, neutral-colored acoustic baffling along their property boundaries to absorb the sound waves before they can make landfall on a neighbor’s brickwork.

The council has already dispatched two code enforcement officers equipped with directional parabolic microphones and decibel-second meters to establish baseline acoustic profiles for the town’s historic district.

Local residents have expressed confusion over how to comply with the new self-reporting requirements. Eleanor Higgins, 64, whose cottage features an 18th-century stone well, discovered during a preliminary assessment that her morning throat-clearing was generating a "Class B sustained bounce" off her neighbor’s greenhouse.

"The council expects me to calculate the decay rate of my own coughs," Higgins said. "I’ve been told that if I cannot quiet my garden by September, I will either have to pay the annual easement fee or limit my outdoor vocalizations to a flat, non-resonant monotone."

Opponents of the measure have raised concerns about the logistical challenges of monitoring natural phenomena. However, municipal authorities remain firm, noting that exemptions will only be granted for emergency sirens, church bells, and "naturally occurring avian disruptions" lasting under three seconds.

The council is already preparing a draft amendment for its autumn session to address "unauthorized visual intrusion," which would regulate the casting of shadows onto neighboring lawns during peak afternoon hours.