Abstract: Delivery parcel detection systems can include a doorbell having a first wireless communication system and a parcel holding system configured for placement in an entryway. The doorbell can be communicatively coupled to the parcel holding system. The parcel holding system can comprise a sensor configured to detect a delivery parcel located on the parcel holding system. Systems can include a first communication sent from the parcel holding system to the doorbell in response to the parcel holding system detecting an arrival, a movement, or a removal of the delivery parcel. Systems can also include a second communication sent from the doorbell to a remote computing device in response to the doorbell receiving the first communication.