How to cancel a new property which i have registered wrongly

Hello. I have registered the property Chestnut Yard 2 with ID 8564390 wrongly. 

The aim was to register a new apartment under Chestnut Yard with D 8215439. 

Kindly inform if i have proceeded corrected or i should delete Chestnut Yard 2 with ID 8564390 wrongly. 

thank you