不明白你说的 authority consent 是指 planning permission 还是 building regs. 以下是我之前给其他网友的回复,或许会对你有帮助。
We’ve been through this when we bought our current house.
Buildings regs and planning permission are two different things. Planning permission should be approved and should be in the council records as if the extension doesn’t comply with local laws then it could be taken down within a certain period of time.
Building regs is the controls of the works I.e. making sure the works were done properly, foundations are solid, structure, thermal insulation, electrics etc… when we purchased our house there was no building regs for one of the extensions. An indemnity insurance policy was offered and taken (paid by the seller) to cover us in case the council investigated the works. This policy doesn’t cover you in case the house falls down. Please note that.
The best test is known as the test of time…Buildings regs change all the time and anything built 15 years ago wouldn’t pass today’s regulations. Therefore, if the extension has been in place fr several years and there are No obvious signs of issues, then it would be safe to assume the works are ok.
I had a full structural survey completed prior to purchasing the house to make sure everything was good. We then proceeded to purchase the house and have been here for several years without any issues.
The only thing you need to remember is if you plan to complete any works in the future, you must not inform building regs as this will invalidate your current insurance policy.
When you wish to sell the house in the future, you will have to purchase the same insurance policy to give to the new buyer’s, this policy will cost around 200 pounds.