WHAT IS HOUSE PLAN ID NUMBER ? buildingplanng.com October 18, 2020 0 Comments House plan I.D Number is the unique personal identification number belonging to the selected house plan alone. it is use to identify house plan among similar once. « Back to the Knowledgebase Share Link Post navigation PrevWHY SHOULD I JOIN PLAN MARKET AS AN HOUSE PLAN DESIGNER ? NextHOW TO LOCATE THE HOUSE PLAN ID NUMBER ?