The most important phase of any bath and kitchen remodeling project is the planning phase. During this time, you will need to develop a budget for the project or projects as well as a timeline; keep in mind that during certain phases of the bath and kitchen remodeling, these rooms will not be usable, so you may need to come up with contingency plans for bathroom use and cooking. Be sure to determine what kind of plumbing is built into your home so you are prepared when new sinks, tubs, and so on will be installed. Old plumbing can be problematic, so it is best to find out ahead of time what you are dealing with.
Once you have figured out the plumbing situation, it is time to start thinking about the logistics of the bath and kitchen remodeling project. During this phase, think about how to use the spaces most effectively as well as how people will move through the room. This will have a big impact on the convenience of the space, and it may affect which non-structural walls are torn down or kept in place. Keep in mind that while some walls may not be structural supports, they may still be concealing plumbing and electrical components. These components will need to be relocated or otherwise enclosed if you tear down a wall during the bath and kitchen remodeling.
Just as important as the logistics and plumbing is the aesthetic appearance of the rooms. You will need to decide what materials you would like to use for floors, walls, cabinets, fixtures, tubs, sinks, and so on. In this case, bath and kitchen remodeling projects might be best split up into two projects, since the aesthetics of the bathroom may vary from the aesthetics of the kitchen. The two rooms may share elements, however, so keep in mind which fixtures will work best in each room and consider combining aesthetics.
The fixtures you choose can depend on your budget, but you will need to keep in mind that buying cheaper materials will not always end up saving you money. Cheaper materials will often tend to break down more quickly, which means you will be doing repairs or refurbishing sooner than you expect. Try to find a balance between your budget and the highest quality materials so you can ensure your kitchen and bathroom remodeling projects will not need to be repeated prematurely.