Given their professional experience in house designing, it can be helpful to hear why certain elements will and will not work as you may envision. Your architect will be able to show you 3D walk through plans too. This can be useful exercise to examine sun patterns at different times of day and get a feel for the scale of your future modern home.
Look for reputable designers. There are hundreds of different builders out there and every single one has a different history and reputation within the community. If you take the time to check out all of the available designers, you should have no trouble finding the best in the industry.
Today's architectural styles have changed significantly, and the home designs available today reflect that. In order to choose a home design, you usually need to first choose a home design company or architect to work with. There are plenty of companies out there to choose from, and finding the most professional company with the latest and most appealing designs will be the goal of any home owner who is looking to renovate or build a new home of their own.
Plan your budget accordingly so that you don't get your hopes too high or settle for less than you deserve. That is, plan your budget based on what you can afford. If a half-million dollar home is in your dreams, make sure you can finance it - visit your accountant and bank manager beforehand so you know what budget you can realistically work with.