External door to new utility room

[CaleyThistle]

Hi all, I'm looking for your lovely collective wisdom on our new extension and in particular whether we should have an external door to our new utility room, or just a window. Before and proposed pic attached.
We have a bungalow with a cr@ppy single glazed 'conservatory' to the rear that we are knocking down to create a large kitchen/diner. The existing kitchen will be split in two to create a family bathroom and a separate utility room.
My question is to whether we should add a new back (side) door to the utility, or keep this as an internal room.
I'm swaying one way but just wanted input from people who are not 'involved' in the project.
The layout for the new kitchen is still to be finalised so your input is welcome as to what we should / shouldn't do with that space.
T v much IA!

Defo access outside if means you can bring shopping in that and use as boot room for muddy disrobing after walks/football etc without trapping through house. I'd make access to kitchen off utility and not hall way though so you are not doing a u Bend walk with shopping bags.

A door would be handy when you want to hang your washing outside.

Thanks very much for your input. Certainly food for thought. My OH would prefer to move the washing machine and ceiling dryer out of the kitchen if possible, hence the separate space, but the existing external wall is 30cm thick so we are losing floor space by keeping it (but saving on the costs of a new steel lintel / knocking it down).
Sleepy, the utility would be approx 1.8m wide so we could fit in a run of units without a door banging up against them. Interesting to hear about your neighbour's house.

You could have your utility door swing open into the garden then you wouldn't lose any space indoors.

We had a very similar set up and decided to put a door into the utility room.

The only other back door was the sliding patio door in the living room, and it just wasn't practical to have muddy kids in and out, tramping all over the carpet.

The utility door is used for transporting laundry in and out and is brilliant when you've been gardening and want to come in for a wash. Or transport hamster cages into the garden for cleaning. It is also invaluable in the winter (see above comment about muddy kids). The utility room is where we keep wellies, running shoes and walking boots.