To calculate the construction of their home independently or to enlist the help of construction firms. Before that accurately determine the basic parameters of their future home - the size of the entire house and each room, the height of the Foundation height and thickness of walls, type of roof and roof communication in the home. Then make a plan at home - alone or in the design office.
Then with the project, you can invite professionals who calculate the cost of building according to modern building norms and rules, and will calculate the final cost of construction based on current construction materials prices and quotations for the work. Since the calculations of the wizard will be done on the basis of its own costings, it is recommended that calculations can be performed in several companies, and thus to Orient on the average price.
If you decide to calculate the build your own house yourself, you can make their job easier with the help of special programs. At the moment there are dozens of programs for processing documents. Many of them have a free trial period, so you can use them for their own purposes for free. But the program, again, will be considered on the basis of standard costs, which can be very different from those which apply in your area.
In some cases you would be better to make a list of necessary construction operations and construction materials and to know their price in local building firms and shops. So you can significantly save money.
And most importantly - please note that during the construction period the prices of services materials may become more expensive, so the budget future construction need to invest stock in 20-40 percent of the estimated cost (depending on the estimated time of construction).