I live next door to a rental.

In general the tenants have been awesome. They have moved out and the house is being done up for sale.

The landlord however has been a huge problem. He has cost me not insignificant money with council consents (which I got).

So I am half interested in costing him some money.

What can I do to be a terrible neighbour (but legal) that will cost him with either a lower offer or cause him to miss out.

Some ideas:

• Play let it go on repeat while there are open homes
• have my charcoal bbq spewing stinky white smoke
• Sit outside in boxers drinking beers performing the above
• cease mowing lawns
• High intensity fairy lights outside their lounge
• Pile garden debris against shared fence

So - what red flags would a neighbour show that would make you walk away or lower your offer?

Legal, kinda funny, and I may have to live next door to these people so not too embarrassing :P