Renters not informing landlord of construction

[Michael Arreola]

Hello bp!

I am happy to say that this is my first post and am very excited to finally be apart of bigger pockets. unfortunately the reason for this post is not the best reason to reach out.

So I own a home and am currently renting out 3 rooms. I'm in the process of slowly renovating the place. I wanted to start with the fence of the property. I live in the bay area and share a fence with 4 neighbors but only the rear and the left side need to be replaced. On the rear side i share about 50 feet with one neighbor whom is the owner, and I share about 15 feet with another neighbor who is a renter. 

I have approached the renter several times about contacting the land lord but have not received any notifications from the owner or the renter. I am willing to pay for the 15 foot section that we share but I am hesitant about getting a contractor without the owner of the property being properly informed by me. I would hate to get such a large area of fence done and still have 15 feet that is the original fence.

I have talked to my neighbors about the situation and no one had any information on the owner. If anyone has any suggestions please let me know for I have already hired someone. 

Thank you for your time.