Build your own home with vaulted ceilings. The Spellings of Beverly Hills did the same thig when they wanted a home with outstanding features. Mrs. Spelling, has a problem understaning the design and kept making the rooms larger and when making the rooms larger, she mad the ceilings higher and higher. Even The Garages have the same High ceilings? I understand you would not building the largest home in The County of Los Angeles California, but if you want it done right, do it yourself. Find a General Contractor that works with New Home Construction that is trusted.