A system comprising: a sensing device comprising a pressure sensor configured to measure pressure of water in a water system of a building structure, the water system of the building structure comprising fixtures and water lines (232, 234) that supply the water to the fixtures of the water system, the sensing device configured to be coupled to the water system of the building structure, the water system of the building structure including a pressure regulator, and the sensing device being configured to generate pressure measurement data representing the pressure of the water in the water system of the building structure as measured by the pressure sensor; and one or more processing units comprising one or more processors and one or more non-transitory storage media storing machine executable instructions configured when run on the one or more processors to perform: detecting a non-cyclical pressure event corresponding to a water leak in the water system of the building structure during a first time period based on an analysis of information comprising the pressure measurement data, wherein the information is analyzed in the analysis without flow measurement data that represents a total amount of flow of the water in the water system of the building structure during the first time period, and wherein detecting the non-cyclical pressure event further comprises: analyzing a frequency domain characteristic of the pressure measurement data within a frequency range of 0-100 Hz to identify a turbulence in the frequency domain characteristic when compared to a baseline frequency domain characteristic, the turbulence having a duration longer than a first threshold wherein the turbulence is generated due to water constantly escaping the water system due to the leak, and pressure regulator replenishing the water pressure; wherein: the sensing device is coupled to the water system of the building structure at a single location of the water system of the building structure when measuring the pressure of the water in the water system of the building structure; and the single location where the sensing device is located is between the pressure regulator of the water system and a first fixture of the fixtures of the water system. a sensing device comprising a pressure sensor configured to measure pressure of water in a water system of a building structure, the water system of the building structure comprising fixtures and water lines (232, 234) that supply the water to the fixtures of the water system, the sensing device configured to be coupled to the water system of the building structure, the water system of the building structure including a pressure regulator, and the sensing device being configured to generate pressure measurement data representing the pressure of the water in the water system of the building structure as measured by the pressure sensor; and one or more processing units comprising one or more processors and one or more non-transitory storage media storing machine executable instructions configured when run on the one or more processors to perform: detecting a non-cyclical pressure event corresponding to a water leak in the water system of the building structure during a first time period based on an analysis of information comprising the pressure measurement data, wherein the information is analyzed in the analysis without flow measurement data that represents a total amount of flow of the water in the water system of the building structure during the first time period, and wherein detecting the non-cyclical pressure event further comprises: analyzing a frequency domain characteristic of the pressure measurement data within a frequency range of 0-100 Hz to identify a turbulence in the frequency domain characteristic when compared to a baseline frequency domain characteristic, the turbulence having a duration longer than a first threshold wherein the turbulence is generated due to water constantly escaping the water system due to the leak, and pressure regulator replenishing the water pressure; wherein: the sensing device is coupled to the water system of the building structure at a single location of the water system of the building structure when measuring the pressure of the water in the water system of the building structure; and the single location where the sensing device is located is between the pressure regulator of the water system and a first fixture of the fixtures of the water system. the sensing device is coupled to the water system of the building structure at a single location of the water system of the building structure when measuring the pressure of the water in the water system of the building structure; and the single location where the sensing device is located is between the pressure regulator of the water system and a first fixture of the fixtures of the water system.