Thank you Rev and M and M. In my past I was involved with a number of construction projects on "registered" buildings and I am aware of the pain and $$$$ involved. Luckily for my buildings the client was always the Government and so they just took all of our collective monies and got it done. Still, it would take years to get through the process and sometimes you spent as much on the paperwork as you did on the construction. Throw in local Government(s) and you have quite a challenge. A shame actually when the owner's intent is pure. A double edge sword when you need to comply with ADA but the other alphabet agency will not let you do it without emptying your bank account.
Off topic: An example I like to give is one that relates to a project I was involved with, reconstructing the Boston Common Underground Parking Garage. It was constructed in the early 1960's so the structure itself was not the issue. The trees along Beacon and Charles Streets were the issue. They are on a "list" of historic trees in Boston. They were to be protected and each tree insured for $500,000 for the duration of the project plus three years. In addition, we needed to excavate within the crown line which meant that roots would be disturbed. In this case a tree surgeon and a landscape architect spent six months pruning each of the tiniest microscopic root leader using magnifying headgear and surgical tools to apply different materials. It cost over $200,000.
I bring it up because the kiosks on each corner of the garage's ground level had homeless encampments on their roofs and the homeless and mentally ill population were everywhere at all times around the job site. Monies spent on trees = One million dollars in total Monies spent on helping those homeless = Zero