I do love those decorative metal fences, I don't think they would be allowed though because they are permanent. The other consideration I have to deal with is that I am in an historical district and there are many restrictions on what you can and can not do. The reason I have this huge roof deck is that you are not allowed to build a 2nd story (unless it was part of the original house) that is closer than 9 meters (about 30') from the street. They don't want to be able to see it from the street. So, we set the bedrooms back the required amount and I used the 9 meters in front to garden. If I extend the wall with anything permanent, it would have to be stuccoed stone or block and solid, made to look like it was original. What I am doing instead is having them put pipes into the wall at various places around the perimeter so that I can add trellis or perhaps bamboo extensions.
The agency that regulates all this could (rightfully) rule that the bamboo trellis and even the trees are not in period and must be removed. If they are moveable, more the better as I can move them for awhile and perhaps put them back later. It's possible that they won't notice it, in which case all is well until they do. Mostly it depends on whether someone from the agency happens to be driving around looking up on my block or whether a neighbor calls in a complaint. I can't put my architect in the position of building anything permanent that is clearly against the rules, it would make things more difficult for him and he has to deal with this agency every week. They must sign off on all permits and plans before they are approved and they can have long memories if irritated. So.... long and short of it is that I just might have a short bamboo extension made that will lift in and out of the embedded pipes and also function as a trellis. Of course, I would do this after the architect has completed the job and without his knowledge.
It would be cheaper and easier if I didn't have to do that though, so I'm hoping that the dogs will not try and jump onto the top of the wall.
