Book (Practical) Architecture How to build a house with high cost performance

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Architecture
What if I could build a house of the same grade more than 5,000,000 yen cheaper? Mr. Tadao Sakai, the representative of Woodship, a Tokyo-based super construction firm that is rapidly growing with high cost performance (cost effectiveness), explores what a house of good cost performance is and shows a concrete method to lower the cost. However, it does not mean that it is good as long as the cost is lowered. What I really want is not a "cheap house" but a "house of good cost performance"! I have the know-how to create a "house of good cost performance" such as reducing waste of cost and requiring high insulation material even if it is increased by 1 million yen!