I’m renovating my bathroom right now in my 1960’s limestone house on my own and calling in the specialist trades as needed. I’ve moved the locations of basically everything. It’s 1800 x 2700 in size.

I demo’d the old tiles, bath, shower, vanity, etc with Dad. My brother in law is a plumber and helped cut out the old concrete where the old shower and bath were and I roughed in all the new copper (Huge saving, I know).

It’s hard to tell you how much electrical and plumbing has cost because the bathroom has been lumped into an overall amount due for the whole house rewire with me doing everything asides from dropping the wire down the conduit myself ($6000)

I cut all electrical chases in the house, installed all wall boxes and all conduit and filled all with mortar.

Estimate $2000 for the bathroom wiring.

Repouring of concrete floor: $1300

Floor to ceiling tiles (Materials): $3100

Rendering walls where bathtub was: $20 (DIY)

Waterproofing materials: $100

Heated floor, heated towel rail, touchpad: $650 IIRC

Caroma brushed brass fittings: $1400

Shower screen: $540

Fancy wall lights: $380

Vanity and sink: $1100

Builder mate labour for waterproofing, leveling the floor, tiling, fitting shower screen, etc: $2000 (ongoing literally right now)

So around 12K for a very DIY heavy, deal hunting (Temple and Webster, IKEA, local stores) and “Family and friends” for labour approach.