Building onto a roof terrace, possible?

[lebum10]

I've had an offer accepted on a 1 bed converted terrace flat in London which is hugely exciting. The only problem is the internal space is pretty small although it does have a 5m x 3m roof terrace to the rear that I'd like to, if possible, turn into a second bedroom.

The roof terrace itself is actually about 4 steps down from the level of the rear room (picture in my album), so although it's called a roof terrace (because it's on someone else's roof) it's more a large balcony for us.

The next door neighbours have already turned the same area into internal space so I'm confident planning permission shouldn't be an issue, but what sort of money are we talking about to have this done?

I've seen some other figures on the forum quoting around £1300-1500 per cu Metre, but as we're on the second floor I'm guessing that might cause a few issues (scaffolding in my poor neighbours back garden etc).

What do you guys think?

 

[tim00]

There are indeed a number of issues: go ask your future neighbours how they accomplished what you propose, and how much it cost them.
Not knowing whats what it's impossible to price.


If you'r serious, then post a rough plan view and pics of whats existing from inside and outside.