Off The Top Of Your Head...

[lynbrown]

My daughter has a detached 3 bed house but only one bathroom. The garage is full of rubbish and the car is never in it. If they converted the garage into a WC and shower, with the rest of the space used by washing machine, dryer etc, what would be likely cost? They live in town, not country.

[boxtops]

Almost impossible to say, without knowing how near the garage is to the main drains, water incoming, and the sewers - the new bathroom would have to be connected to all that pipework.

[ELVIS68]

Top of my head I'd say between £3000-£5000

[boxtops]

We just starting some work in our kitchen, knocking through, taking out two fireplaces, and reinstalling a new kitchen, and doing some other waterproofing and repair in adjacent rooms. Our quotes are about £8K + VAT , and that's without touching drainage work.

[Prudie]

Also I think you might need planning permission and check on building regs. For example I think there has to be a minimum of 2 doors between a toilet and a kitchen. You don't say if the garage is attached or not.

[lynbrown]

Thanks for these helpful answers. The garage is attached.

[boxtops]

Prudie is right, you can't have a loo leading off a kitchen these days.

[murraymints]

And you'll need permissions/ inspecting etc if you are connecting to waste pipes.....

[Boto]

It used to be true that you had to have 2 doors between a toilet and kitchen but according to Homes Under the Hammer this is no longer so - 1 is sufficient. I would still prefer 2!

[boxtops]

I thought if it's an older building (as in HUTH) then it's OK, but new rules (I thought) say 2....

[jd_1984]

Complete guess without specific info, dimesions etc.....

Basic fittings and materials - £3000 - £3500
High end spec £6000 plus

[The Builder]

A few things to help you out, Lyn.......

Planning Permission not needed as it's the same "Class of Use" - Residential (unless it's a listed building)
Building Regs definitely, (Use a "Building Notice")
Insulation needed to all walls, ceiling, and preferably floor.
Garage door replaced, and the opening re-arranged

The 2 door thing ... not essential, but a good idea to have. You'll get that anyway with the WC in a cubicle/small room; and a door to the kitchen as well.
Getting the drainage away is significant. Greatly affecting costs. I think the other posters are about right, but with the other matters that I've mentioned, I would say nearer to £6,000 to £7000

Probably single skin brickwork, so inner walls (timber frame) would be needed..... this would give you the insulation as well.

Door to outside might be needed as "means of escape" if the kitchen is on fire, but only if used as a bedroom. Your utility room would not need it (non-habitable room)

Plenty of things that affect costs.