Whilst I love playing around with the perspective of buildings I am the first to believe that ignoring or distorting perspective unintentionally or otherwise can help produce a significant image. I'm very interested in naive art and many of these artists aren't at all interested in correct perspective as they are conveying their emotions about the scene, their view of the world. Naive artists in days gone by were largely untrained and knew very little about how to create an image using the principles of perspective. Nowadays there are some artists who suspend this knowledge deliberately.
Here are some more links to the work of Alfred Wallis.
If you are following the Painting a Town videos a new one Day Nine-Adding a Cottage has been uploaded. If you're watching the video imagine how Wallis would have painted these cottages.