Neighbours tree blocking sunlight - possible options

Have you suggested that you pay to get the tree trimmed at all ?

If you cut your side back to the wall, depending on the type of tree you will be stuck with the unsightly dead inside if the tree.

Unfortunately you cant compel the neighbor to cut his side down.

poison it with paraquat or sipquat

Yo may be tempted to do this, but be aware that it could be considered to be a criminal act and could result in a very undesirable outcome.

you read my mind with your cunning plan!

Possibly keep cutting it back, and it will overly grow on their side, and topple over.

The Irish courts have in the past applied the so- called “45 degree rule” as a guide in determining whether there is a case to answer on a claim for interference with a right to light. This rule of thumb suggests that there is no substantial interference if the angle of unobstructed light is greater than 45 degrees.

You could try this in court, it may make him think about costs if you win,, but if you fail, then you would need to think about costs.

You could hang a swing on your side if it overhangs enough,, This might irk him into action.

What a great neighbour you would be...

How tall is the tree and how long is it there and what type,

blocks all the sunlight to my garden from about 6pm onwards

From 6pm onward? I wouldn't mind if you were missing the midday sun but you're getting that and you still want to cause an argument over what's left after 6? Nah.

Are the roots causing you any problems. We had a problem with a neighbours tree a few rears ago, it was planted very close to our stone wall and caused it to bow. Neighbour called an engineer to prove his tree was not the problem but engineer stated it was the problem and in fairness he had the tree cut down immediately. We had young kids at the time and the engineer classed the wall as dangerous. We then had to have the wall repaired at our own expense but we were happy enough with that outcome.

Ah yeah in fairness thats always baked in ...but in the absence of any other info Im willing to take it a face value

Ive met the like of that lad occasionally in my travels...pure pig ignorant, wouldnt dream of doing anything neighbourly etc

Two of hours neighbors had a dispute about trees. They fell out with each other, but my Mum was friends with both and id hear them both complaining to my mother about the other if they were in the house. Dont know how my mother didnt just boot them out of the house when they brought it up.

They were those lelandi trees. Started off 1 ft though and within a few years were about 30 foot high. They shaded the whole garden. The poor woman would be in tears. Then the other loved her trees. So the husband started butting their side because thats all they were allowed to cut and they had this brown mess on their side of the garden but it still didnt help with the shade.

The two women were friends for about 20 years before the trees and they didnt hated each other at this point. And the woman tried all legal means to get rid of the trees. One day the husband of the tree owner met the woman form the other garden (he always tried to remain friendly but she never spoke to him either even though he would always say hello) and she was in tears and he called her son to come out to her. The next day he got a digger and pulled all the trees out. His wife went mad at him, but she got over it. Its 10 years on and the two women are now talking again.

you are entitled to cut but you must remove the cuttings

OP lets have some pictures please