A walk in shower does add value to your home, especially when the walk in shower is done nicely in tile although even a shower stall that is premade can add value to the home.
Walk in showers are popular and many people now prefer showers, although even if you have a bathtub that is in good shape with a shower that too can still have value for the home.
Walk in showers in homes, especially ones with frameless glass enclosures are seen as being modern and stylish and can appeal to many home buyers.
For every dollar that you spend on adding a walk in shower to your home, the increase in the homes value can average $1.71 for every dollar.
A comfortable shower size is a shower that is at least 48 x 36 inches.
A shower size of 48 x 36 inches provides enough space for one person to shower comfortably and can also accommodate other features like a niche or built in seat.
For people that want more space or need other accommodations, then a larger shower size of 60 inches by 36 inches is often better and is available.
Many people prefer the larger shower sizes of 48 x 48 or 60 x 36 inches.
Although the minimum comfortable shower size is 36 x 36 inches.
For a full bath with a walk in shower you should have a bathroom size of at least 40 square feet.
This allows both a shower and a bath without any constraint.
You can also just have a walk in shower if you prefer.
Or if you have 2 bathrooms, you could have a walk in shower in one bathroom and a bathtub and shower combo or bathtub only in the other bathroom.
My bathroom has a walk in shower and then also a bathtub shower combo.