Cost To Build New will obviously vary greatly depending on many variables, however there is a basic 'range' you can expect to spend that will help you make decisions on whether or not building new is for you, or working with an existing structure is the way to go.
There are four basic areas that make up the majority of the costs in new construction - Plans, Permitting, Site Work, and Construction.
Most architects will charge an hourly rate, and give a basic range of how much time they believe it will take them to draw, engineer, and submit for building permits. A typical range you should expect to pay is somewhere between $140/hr - $160/hr.
Its typically best to have the architect who is drawing the plans also submit for the permits. They will have the most experience in a variety of jurisdictions, and will work with the city to properly fill out the many documents required to submit for plan review and permits. Typically costs for permits will end up running between 3% to 4% of the total cost of the project, and could potentially go up from there depending on several factors like cost to bond, environmental reports, arborists costs, etc.
New construction will always have sitework/site prep that will need to be done prior to construction. Sitework can vary drastically depending on what is already done and what still needs to be done. For instance if you have raw land that is heavily forested site work will be a greater cost than if the land you own is already cleared and graded, and ready for a house.
Typical construction with fairly contractor grade finishes will cost somewhere between $330 to $400 per square foot and up. The more custom the home the more the cost. The challenge with keeping costs to a minimum is usually when a homeowner is building a new house, they want the best of everything, so keeping within budget largely depends on the homeowner.