We need an additional bedroom and would prefer to do so without compromising the rest of the house. In my opinion, the absolute best solution would be to convert the existing bathroom into a bedroom and the walk-in closet into a new bathroom. However, this alteration requires moving two walls (see orange and green line), partly to straighten the bedroom wall, and partly because the 4.1 sqm walk-in closet is a bit too small to accommodate the new bathroom, which needs to be at least 5 sqm.

1. Do you believe it is possible to do this yourself?

2. Do you think it will be excessively expensive considering that much can be reused, such as doors, cabinets, shower, WC, etc.?

3. Do you see any other risks with this renovation?


Before and after floor plan showing conversion of an existing bathroom to a bedroom and wardrobe to a new bathroom, with wall adjustments.
 
I won't be able to answer your questions but for others to guess:
What kind of house is it and what experience and qualifications do you have?
 
Z z_bumbi said:
I won't be able to answer your questions but for others to guess:
What type of house is it and what experience and qualifications do you have?
New house, no qualifications so I will probably hire a professional to do the wet room parts and plumbing in the bathroom. But I want to be able to do most of the other stuff myself.
 
As long as you know which walls are load-bearing and don't make any changes to these, the risks are low.
Installing new pipes and water to the new bathroom is not something everyone can manage. It all depends on how handy and experienced you are.
A bathroom is not cheap. If you make it as simple as possible with wet room mats, you still have to budget for 50,000 kr. Then at least 10,000 kr for the bedroom. This assumes you do 90% of the work yourself.
 
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John Christer and 1 other
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A AG A said:
As long as you are aware of which walls are load-bearing and do not make any alterations to them, the risks are low.
Pulling new stammar and water to the new bathroom is not something everyone can handle. It all depends on how handy and experienced you are.
A bathroom is not inexpensive either. If you make it as simple as possible with waterproof flooring, you still have to budget for 50,000 SEK. Then at least 10,000 SEK for the bedroom. This assumes you do 90% yourself.
We want fully tiled.

But the following I can do myself:

Demolition and waste removal
Carpentry work
Tiling
Painting work

The following we need help with:

Electrical work
VVS work
Waterproofing

+ material costs
 
O Oxfilé said:
We want fully tiled.

But I can do the following myself

Demolition and waste disposal
Carpentry work
Tiling
Painting work

We need help with the following

Electrical work
Plumbing work
Waterproofing

+ material costs
If you are handy enough to handle the carpentry required and tiling a bathroom, then I don't understand why you couldn't handle installing waterproofing. You should also be able to manage most of the plumbing work.
As long as all the work is documented, there are no problems with insurance.
 
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whak and 2 others
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Do you see any problems with having exhaust air in the bedroom?
 
Or rather, the principle is that the "bad" air should be sucked out, and thus it is usually recommended that the "fresh" supply air should come into bedrooms, living rooms. But is it downright harmful to have exhaust air in a child's bedroom?
 
BirgitS
It is very inappropriate for already used air to enter a room that someone will be in for an entire night, as it can lead to headaches, for example. Bedrooms should have fresh air and bathrooms should have exhaust air, so the ventilation must be redone. Even if there is exhaust air in the closet, it is probably too little flow for a bathroom.

It should be fine to have a bathroom with a shower at 4.1 square meters. You can see that there is empty space between the toilet and shower, as well as between the vanity and the outer wall.
 
BirgitS BirgitS said:
It is very unsuitable for used air to enter a room where someone will be staying for an entire night, as it can lead to headaches, for example. Bedrooms should have fresh air and bathrooms should have exhaust air, so the ventilation needs to be redone. Even if there is exhaust air in the walk-in closet, it's probably too little flow for a bathroom.

It's fine to have a bathroom with a shower on 4.1 sqm. You can see how there's empty space both between the toilet and shower and between the vanity and outer wall.
Okay, so we would need to add incoming air to the new bedroom (i.e., the larger room). Do we then need to add exhaust air somewhere? Maybe in the passage? Thinking so the ventilation balance doesn't become uneven.
 
BirgitS
It depends on how the entire floor looks and where the supply and exhaust air are located.
 
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Ripley
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We have a cast concrete slab with underfloor heating. I assume that makes the renovation very complicated? Sure, the WC should be easy to reroute since it will be wall-to-wall. But the shower and water to the vanity?
 
O Oxfilé said:
We have a cast concrete slab with underfloor heating. I assume this makes the renovation very complicated? Surely, the WC should be simple to relocate since it's wall-to-wall. But the shower and water to the vanity?
It certainly doesn't make the job easier, that's for sure.

From which direction are the water and sewage coming? The toilet sleeve will be your least problem; the gradient from the shower will be more challenging.

How does the ventilation run? In the joists or in the attic? Is there space to reroute and install new?

How will the heating be managed in each room? The underfloor heating is guaranteed to be above the sewage pipes, so to install new pipes with enough slope, you will need to break it up. Even if you keep the incoming underfloor heating pipes, they have too low a temperature to connect to radiators.

Would you consider switching to a single vanity to probably avoid moving one of the walls; it should fit anyway.
 
zarkov zarkov said:
That certainly doesn't make the job easier, that's for sure.

From which direction do water and sewage come? The toilet seat will be your least problem; worse is the slope from the shower.

How is the ventilation? In the joist or in the attic? Is there space to reconnect and install new?

How will heating be managed in each room? The underfloor heating is certainly above the sewer pipes so to lay new pipes with sufficient slope you will need to break it up. Even if you keep the incoming underfloor heating pipes, they have too low a temperature to connect to radiators.

Could you consider switching to a simple vanity to possibly avoid moving one of the walls, it should fit anyway.
The ventilation goes in a crawl space and judging by the drawings, it should be easy to reconnect.

The drains go across the room, so I'm unsure if it would be possible to "connect" to the existing ones.

Heating is done via two different thermostats with existing underfloor heating under each room, so that part should be okay.

But sure, breaking up the underfloor heating to lay new pipes, especially to the shower, sounds very challenging.

Maybe it's best to put the plans aside instead. It feels like it will cost more than it's worth and that it's just easier to sell the house and buy another one.
 
According to the person who built the house, it cannot be done without "breaking up all the pipes from the slab." So I guess that was the final nail in the coffin.
 
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