As Muslims, we live by and adhere to specified code of conduct as conferred onto us by shariah. As such, there are guidelines on seeking permission to enter someone’s home which are fixed and do not change.
You can download the below file that details the Quranic verses and ahadith regarding this topic.
You will find that our religion tells us how we can respect one another and the properties of our brothers and sisters. We are taught the ways to preserve the respect we have as well as the rights of fellow Muslims through Islamic ettiquettes.