This year was a wonderful one for my GN, it produced hundreds of delicious fruits. But, despite my regular pruning it grew to ginormous proportions, over 25 ft tall (in ground since 2011) with huge roots over 10 inches across spreading under my walkway and towards my neighbor's house. It shaded my entire patio, south side of the house, and west side of my neighbor's house. The final straw was when one of the three largest limbs nearly 10 inches in diameter cracked and was about to fall on the neighbor's place.
Before I got it, I read... " It forms a dense, spreading canopy, which is easily maintained at a height and spread of 2 to 2.5 m (6.5 to 8.1 ft)"
NOT SO!!! :-)
I miss the shade, and fruit, but not the risk of damage to rooftop and foundation.