Thanks for taking the time to comment bj. I currently line dry exclusively, though planning to put a dryer in when we renovate. Would mainly be for rainy weeks though, will keep line drying where possible. There is another external access, say 2 rooms away via a hallway... I agree, if it was walk straight through one other room it would be easy enough. Wish I could have both shower and external access but I think it's impossible in the small space!

a modest sized washer needs at least 65cm, (a future dryer can hang on the wall or stack on a matching washer) Caroma make a narrow toilet cistern with an integral handbasin that only needs 40cm plus 20cm elbow room and a small shower could be 85cm sqare which will all fit along along the 2.1m wall (provided the hall and outside doors line up opposite each other and you don't want a laundry tub, which needs at least 40cm) ...all these special fixtures and fittings cost much more than standard and there's also the cost of labour to remove the existing plumbing and install the new so before you invest so much money can you post a plan of the whole house to try and find a better solution..

Thank you oklouise. Good point about surrounding rooms. The laundry adjoins our current bathroom which is 2.1m long by 2.5m wide. It is less offensive and the second toilet was our immediate priority so I hadn't considered changes there yet... I'll see if I can locate a floor plan.

a floor plan of the house would be good..there must be an alternative solution to your problem

Is there any where that you could move your washer ? ie into cupboard? garage? outside if underneath shelter like a pergola ? etc near the lines ?

our bathroom is 1.75m by 2m and we've got a walk in shower vanity and toilet in there.

Thanks Vy, no spare cupboards and no attached garage, would have to be floorspace from elsewhere, but then we would also lose external access...

I've mocked up a very rough floor plan if anyone has a clever idea :)

using only the laundry space there is room to add a toilet to the laundry but you would have to choose between a laundry tub or shower as there's not enough space for both and losing the external door does not..I think a shower would end up being used as a storage area for baskets of dirty clothes so adding only a toilet would be the best option and you'll be able to install a standard size (cheaper) toilet back to back with the bathroom toilet, re-locate the existing laundry tub to wash hands and recycle the old taps OR if you decide to invest in a new tub and taps consider having the washing machine taps inside the cabinet...a future dryer can be mounted in the corner above the new position of the washing machine

from the look of your existing bathroom can you alter it ? take bath out and have a shower? that way you can pop your washer dryer in there next to your shower ?

then that leaves the laundry with enough room for a shower and WC.

You'll still have your external excess if you change your internal access to a sliding door ?

I've drawn it so the external access door swings outwards instead of inwards from my measurements of our bathroom you should have plenty of room to pop in a vanity opposite the toilet ..our stand alone toilet is roughly 1200mm wide plus 900mm for the shower should take you to 2100mm

you only need 500mm from end of the seat for leg room so you should have plenty of room for the vanity

Alex..your shower of 1300mm won't give you enough room to walk out if it's a walk in shower...the screen really need to be around 1100mm so it doesn't splash everywhere.

Opening the external door outwards is okie if you've got some shelter from the elements..our entry door open out and is under a carport/deck.

As per oklouise drawings

with 2100mm

600mm washer dryer

900mm shower

leaves 600mm for WC which leaves you 100mm either side of the WC.

It's doable though your shower door will need to swing out thus not sure if you can fit the vanity across from the shower being only 1800mm wide.

unless your internal access is a sliding door..

then you can fit it where the washer dryer is.

you'd still need an external access opening outwards as doors are 800-900mm and if you open in you'd bump into your shower door opening out..