Use this for complex projects that do not fit a single category (additions, ADU + remodel, etc.).
Custom home construction costs vary widely by location and finish level. In California, expect $200-500+ per square foot, with total costs typically ranging from $400,000 for a modest custom home to $2M+ for luxury builds.
Building a custom home typically takes 12-18 months from design to move-in. Pre-construction (design, permits, approvals) adds 3-6 months. Complex designs or permit delays can extend timelines significantly.
The foundation and framing typically account for 25-30% of the budget, followed by interior finishes (25-30%), mechanical systems (15-20%), and site work (5-10%). Custom kitchens and bathrooms are the most expensive rooms.
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