By skyforbes 
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It’s always best for a door to have an immediate wall to swing against, rather than the door swinging past 90 degrees, as shown in the floor plan below. The reasoning is two-fold.
First, having the door swing against a wall is spatially more efficient, instead of using up space for a wider door swing.
Secondly, it provides a solid place for the door to rest against while open, reducing potential wall damage. As drawn, the edge of the door could easily get shoved into the corner, causing damage to the wall.
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The closet was designed without a door. This is never a good idea unless the closet is designed as an upscale dressing room, and fitted with custom cabinetry. Otherwise the views from the bathroom area, looking into the closet would be an eyesore.
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As designed, the sink cabinet is crowded, creating less than ideal storage, and counter space.
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Even though the tall linen would provide practical storage, as drawn, from a design point of view, it would be lack-luster, and uninteresting.
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In and of itself, a private entrance into the toilet room could be an asset in a shared bathroom, but only if there is plenty of room to dedicate to it. Given the relatively small amount of space we have to work with, there are definitely better ways to utilize the space.
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As drawn, what we have here is upper and base cabinets, much like what you would see in a kitchen. In a bathroom design, it would look awkward and out of place.
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When designing high-task areas like kitchens and bathrooms, function drives form. However, I’m a believer that with careful planning you can achieve both function and form. For instance, notice how visually disconnected the sink wall is to the hallway leading to the shower. I call this perimeter designing, as opposed to a more holistic approach. It would be far more pleasing to have the paprallel walls relate to one another visually.
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Notice how the window isn’t centered on the wall between the toilet room and shower. These kinds of oversights end up being eyesores in the built space.
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In custom homes, it’s become standard for master showers to have two shower heads. Even though the shower design is large enough to accommodate two people, it only shows one shower head. This would be a missed opportunity to provide more function and practicality for dual users.
After reviewing with the clients, I designed five different floor plan options for the master bedroom, bathroom and closet area, all while basically maintaining the general footprint of the proposed space.
This is where I would typically share all of the floor plan options, to showcase the many ways the same amount of space can be defined. In the interest of time, I’m going to jump to the final floor plan and then conclude with the importance of elevations and how critical they are to both the design and build processes.
In reviewing the final floor plan, notice how each of the challenges above were addressed. The floor plan has been perfected and refined with both the use and functionality of the space, and the over-all presentation.