Devices, systems and methods for detecting leaks and measuring usage

A system for leak detection in a building comprising a plurality of fluid systems utilizing a fluid, comprising:

• a plurality of sensor devices, each sensor device comprising at least one sensor configured to detect fluid data, and each sensor device deployed in a different fluid system of the plurality of fluid systems;
• a plurality of processing systems, each processing system of the plurality of processing systems coupled with a sensor device of the plurality of sensor devices and configured to communicate the fluid data;
• and
• a platform comprising:
• an application communicatively coupled with a database storing evaluation data, and configured to receive the fluid data and determine if there is a leak in a fluid system of the plurality of fluid systems by comparing the fluid data to the evaluation data, wherein the application is further configured to determine a future leak is likely by comparing the fluid data to the evaluation data.