Has anyone moved their front door to porch and added glass internal door?

[W0rriedMum]

We have a lovely period front door I'd like to keep but it's very cold in the hallway as it is poorly insulated. Our porch is a "storm" porch, i.e. covered but not enclosed.

Rather than adding an extra new door, I was thinking of moving the existing door to the outside porch opening, and adding an internal glass door - either modern or like an old wooden, patio door.

Has anyone done similar or have other ideas so our house is warm but we don't obscure the front door? Thanks!

We nearly did but the opening was a different size to the front door / standard sized front door so would have needed a custom made front door which made it really expensive. The porch was only single skin too which would have been cold to have as essentially an internal wall, even if we'd had an internal door. Could have insulated it but again added to the expense. I think it was going to add about £4k to our building work which we didn't think was worth it in the end.

@namechangedtoday15 - thanks for the swift reply!
Regarding the single skin - do you mean that the surround on the porch was never meant to be a part of the house? That's an angle I hadn't considered, I must say.

Yes, we're in a 1930s house. The main house has cavity walls (forgive me if you know this but a double later of bricks with a gap in between for insulation). The attached garage and porch were just a single layer of bricks. It may be different in your style of house but builder said it would be very cold without insulation work.

*layer not later!!