How much of an issue?

[Thelastlightbulb]

Standard 1930s semi, 3 bed, 1 bathroom. Old outdoor lav converted to a kitchen and no downstairs lav. Quotes are about 15k to put one in and it would eat into the average size kitchen a bit by pitting it under the stairs, but it wouldn't make a massive dent in the space more that I'd lose space by resisting the fridge freezer that's there now. Any opinions on if it's worth it?

I guess it depends what it's worth to you. My parents live in a house that sounds similar and now when i visit I wonder how on earth 4 people lived in it with only 1 bathroom, it drives me crazy! If you've got small kids and it's going to be a long term family home then I'd probably bite the bullet and spend the money on it. Some of those houses were built with a separate toilet and bathroom upstairs but that seemed to be deemed unfashionable and people knocked them into one but i'm sure it makes sense if doing that would be an option? At least someone can get up and have a pee if someone is in the shower!

We have one, put in before we moved in (also 30s 3bed semi). Doesn't encroach into the kitchen at all. Its tiny but functional. £15k sounds like alot, particularly if you're joining into bathroom plumbing / soil stack above (so not re-routing plumbing etc).

Two things you maybe need to consider - are you thinking of extending at all? We're thinking of going out at the side now and will need to re-site the loo - if thats a consideration, then I wouldn't be wasting £15k.

Also, we have our electricity meter in the understairs cupboard (more towards the low, pointy bit so opposite end of the space to the loo). As I said, ours was done by previous owners 15+ years ago, but neighbours who looked into this suggested it may not meet building regs now and they'd have to move the meter. Worth checking depending on where your meter is.

I think if you’ve multiple quotes it’s prob about right. It’s the soil pipe that costs. I’d go for it if you have the money, a down stairs loo is invaluable and will also add to resale value.

That’s a huge quote! If the soil stack and stairs are on the outside wall, then the plumbing it not a big job. Water from the kitchen spurs, big hole to outside and length of pipe with inspection trap to the main soil stack.
Moving the meter cost us £1400. Finishes, electrics and Sanitary ware depends on your budget.

We lived in similar 30's semi. Lack of downstairs toilet really become a problem when dc were older (7&9). We were thinking of extending and added nag a loo but decided to move because box room was too small.

£15k sounds astronomical! How have they broken that down?
I'd say 3-5k and that would include moving the fuse box and a more complicated than average plumbing situation at the top end.
I think a downstairs loo is pretty essential.

It doesn't go straight onto the soil stack so partly it's that. Food for thought regarding residing the meters though even though no plans to go outwards.

You don’t have to move the fuse box out of the room, only the meter to the outside. Done by the utility provider.
Agree downstairs W.C is essential.