Given the mold on the ceiling, I'd recommend a good exhaust fan with light over the tub/shower combination, not offset over the toilet.

Flo - this is 1 of 3 full bathrooms and is basically the kids bathroom. The mould is likely a combo of poor location of the fan (thanks apple pie) and the kids forgetting to turn on the fan. The shower head leaks (fixed 1x already) and we presume they did not use mould resistant drywall when it was built. We want the same structure for cost purposes but not a tub surround........prefer a nice tile.

A nice shower the size of your current footprint which is probably about 5' x 30" or so, will run at least $2,000 plus labor. Mold remediation probably at least another $2,000 to remediate and replace shower lining, waterproofing, etc., etc. Probably more than that if it isn't migrated further than you think. That would be what I would budget minimum. Then vanities, sinks, faucets, countertops, flooring, lighting, all electrical changes, all add up. Sorry, that is just the truth. Bathrooms are the most expensive rooms in a home, except for kitchens. I would really think about this. I know you probably have to do something. One sure suggestion is to get the fan on the light switch so the fan comes on when the light goes on if the children can't be counted on. That works.

Any suggestions on brands?...........what's the difference between Lowes $94 sink and $250 sink from a Bathroom store? This picture was taken in a store called Amati (Toronto) that specializes in bathrooms. Is this a waste? Same question for a bathtub.........Is Aquabrass a good brand for faucets?

The cheaper varieties stain quicker, crack sooner and can be difficult to replace. A undermount sink doesn't have to break the bank however, but $100 is pretty cheap and not made from good materials. It isn't the sinks that are going to cost you. It is the "unseen" materials in the shower, tile and labor. that is where the cost is. And the preparation labor and remediation of mold.

Flo - I'm ok with 'required' extra spending as that is what can happen with any home project. I just don't want my design ideas to take hold of my budget (such as moving tubs/toilets). If it's smart to spend extra on something - no problem as this room is the 1 and only time it will be remodeled by this home owner. If I can save somewhere that's great too. Classic design is my style preference and leaning towards the gray colors. My only 'must have' is some type of stone counter top (no laminate).

If this is one and only, I would avoid grays. that trend is rapidly moving on. I would go more whites and classic looks. You can get very inexpensive granites in white/blacks and grays to put on white cabinets and go white. Makes everything easy and you can paint walls a color or an off-white. Also, best choice if you plan to sell in say 3-5 years. White can be cleaned easily and stands up to most anything if you have good enough quality. Doesn't have to be best, but let's say "better" than cheapest.

Just to give you a general idea, I'm updating my master bath. It has a vanity about your size, which is costing me about $1400. The granite top with two under mount sinks, which are being installed by the fabricator, is $1,030. On my invoice, they are charging me $65 for each under mount sink. New lights, faucets, toilet, etc. is costing me about $1500. A new frameless shower door is another $1500. All in, it's going to run about $8500 and that doesn't count replacing any tiles, either in the shower or on the floor. This is in American dollars, which I believe has about a 30% exchange rate currently. I would suggest a prefab fiberglass shower pan and subway tiles for the shower. It should be your least expensive option. Instead of tile for the floor, consider luxury vinyl tile. It requires less labor to install and can go over your existing sub floor with much less preparation than the cement board required for tile floors. If you want to save some money, look at RTA (ready to assemble) cabinets. In a lot of cases, the quality is better than what you would find at a big box store. Since your junction box for your lighting is in the ceiling, consider hanging pendants from the ceiling to save moving the electrical. I'm using Moen faucets, which are all brass and have a limited lifetime warranty. I can buy replacement parts at Home Depot. You could look for a granite remnant, which is what I did for your counter top. I know quartz is all the rage now, but it's quite a bit more expensive. Save your money for what you may find behind the walls! Oh, and definitely attach the fan to a light switch. I did the same and my kids had no choice but to use it then! Hope this helps! Good luck with your project!

Katinparadise - wow.......vanity cost $1400..........So ready to assemble cabinets likely come from IKEA or a kitchen place I guess?? The counter is 8',5" but it doesn't have to stay exactly that length,

Yup. That's a 72" vanity. Home Depot wanted almost $3,000! There are tons of RTA options online, at least here in the US. I know shipping to Canada can be a big hassle, so perhaps you can find someone online who ships there. Most of the places I looked at had free shipping. What I like is you can make your own configuration. Standard vanities here are 21" deep. Is that what yours is? Are you wanting a painted vanity or wood?

Katinparadise........likely painted as per Flo's comment it seems the most transitional over time. The counter depth is the same as your's....I'll have to search RTA options - thanks for that.

You're welcome. If you want to keep us updated with pics of your progress, that would be great!

Standard 3 piece hall baths average 17K to redo. A 5 pc bath, 35-65K. Materials are virtually insignificant in overall costs u less you pick $50 a square tile for everything and 2K faucets. It's all labor. A bath is very skilled labor intensive and requires the cream of the crop in contractors. Ones that are licensed, insured, background checked, and know how to properly waterproof and tile. To put it in perspective, you only have to read the constant postings ever single day from people who didn't find the right guy for their job and now are having to rip it all out and start over.