AP1 form-change name after marriage

I need to change my name due to marriage on the land register using form AP1. 
How long does it take to change and do they notify me once amended? Thank you. 
 

Sharon - wait times can be around on average 3-4 months but that's just an average.
Once processed the applicant receives confirmation and a copy of the updated register in the post 

Thank you. Do you get any confirmation that the form is received?

Sharon - you should receive an acknowledgement, yes

Great thank you.