Abstract: An environment estimation method includes: acquiring first information regarding a total number of ventilations for an indoor space and second information regarding an amount of humidification for the indoor space; acquiring size information indicating a size of the indoor space and the like; generating BIM data of a building that defines the indoor space; acquiring a calculation condition and the like; generating a simulation model of an environment of the indoor space; and executing a simulation of the environment of the indoor space by using the simulation model generated.

Abstract: A first acquisition step includes acquiring model data of a space. A second acquisition step includes acquiring user information. The user information is information about a user's predicted mean vote with respect to the space. A third acquisition step includes acquiring candidate information presenting a candidate for an installation position. An analysis step includes analyzing, based on the model data and the user information, a distribution of the user's predicted mean vote with respect to the space when the air conditioning equipment is installed at the candidate. A determination step includes determining, when the distribution of the user's predicted mean vote with respect to the space satisfies a predetermined condition, the candidate to be the installation position.