Obscure glass

The glass only has be obscured if it faces adjacent neighbouring dwellings at a certain distance. It's to stop you both perving at each other. It was argued that blinds or curtains would also obscure the window from peeping in, but the argument was lost when the lawyers asked " And what about you looking out through the curtains". :-)

More than likely specified so you can't peer out, rather than worrying about others peering at you!

Doesn't "one way" glass only work when the side to be observed is bright and the side you are observing from is dark?

Just put a CCTV outside instead. Everyone else does. ;-)

yes.

I'm missing some thing here. What's so special about a window in a loft conversion compared with a window elsewhere in the house wrt Peeping Tomery.

Do you happen to know where the distance is defined?

Locally, when planning is involved, the distance where obscured glass is stipulated can be over one hundred feet.

In this instance planning will not be involved therefore I simply have to identify and meet the statutory requirement. But where is it defined?

It would be better going to your local authority web site and have a look at their planning formats. I thought there was a standard somewhere, something like 72 feet (22 metres), but I think different regions have their own principal of calculation. I also recall somewhere has it at the same distance for the eyesight test for a driving license at 65 feet (20 metres), but that has probably changed as well now.

You can buy a frosted film to cover the glass, which creates the desired effect. I suppose it could be removed after consent has been granted on the refurb'.

Nothing, but they would impose the same restriction if a planning application was made for any other development, so it isn't being treated any differently, this way it just comes along with the deemed consent.