We have a surprising number of visitors searching for free bat house plans or bat house blueprints. I suppose if you are in a mosquito infested area, you will want to bring some bats in to keep the mosquito population down. What better way to do that (naturally) than by attracting bats.
Provide any animal a nice home, and they might just appear. Bats are no different.
This free plan comes from the Pennsylvania Game Commission and is very detailed. The bathouse has multiple compartments and has very detailed exploded drawings (blueprint style).
Good luck attracting your mosquito eating bats.
Download your plan by clicking on the image.